def main(args, local_rank):
vocabs = dict()
vocabs['tok'] = Vocab(args.tok_vocab, 5, [CLS])
vocabs['lem'] = Vocab(args.lem_vocab, 5, [CLS])
vocabs['pos'] = Vocab(args.pos_vocab, 5, [CLS])
vocabs['ner'] = Vocab(args.ner_vocab, 5, [CLS])
vocabs['predictable_concept'] = Vocab(args.predictable_concept_vocab, 10,
[DUM, END])
vocabs['concept'] = Vocab(args.concept_vocab, 5, [DUM, END])
vocabs['rel'] = Vocab(args.rel_vocab, 50, [NIL])
vocabs['word_char'] = Vocab(args.word_char_vocab, 100, [CLS, END])
vocabs['concept_char'] = Vocab(args.concept_char_vocab, 100, [CLS, END])
lexical_mapping = LexicalMap(args.lexical_mapping)
if args.pretrained_word_embed is not None:
vocab, pretrained_embs = load_pretrained_word_embed(
args.pretrained_word_embed)
vocabs['glove'] = vocab
else:
pretrained_embs = None
for name in vocabs:
print((name, vocabs[name].size))
torch.manual_seed(19940117)
torch.cuda.manual_seed_all(19940117)
random.seed(19940117)
device = torch.device('cuda', local_rank)
#print(device)
#exit()
model = Parser(vocabs,
args.word_char_dim,
args.word_dim,
args.pos_dim,
args.ner_dim,
args.concept_char_dim,
args.concept_dim,
args.cnn_filters,
args.char2word_dim,
args.char2concept_dim,
args.embed_dim,
args.ff_embed_dim,
args.num_heads,
args.dropout,
args.snt_layers,
args.graph_layers,
args.inference_layers,
args.rel_dim,
pretrained_embs,
device=device)
if args.world_size > 1:
torch.manual_seed(19940117 + dist.get_rank())
torch.cuda.manual_seed_all(19940117 + dist.get_rank())
random.seed(19940117 + dist.get_rank())
model = model.cuda(local_rank)
train_data = DataLoader(vocabs,
lexical_mapping,
args.train_data,
args.train_batch_size,
for_train=True)
dev_data = DataLoader(vocabs,
lexical_mapping,
args.dev_data,
args.dev_batch_size,
for_train=True)
train_data.set_unk_rate(args.unk_rate)
weight_decay_params = []
no_weight_decay_params = []
for name, param in model.named_parameters():
if name.endswith('bias') or 'layer_norm' in name:
no_weight_decay_params.append(param)
else:
weight_decay_params.append(param)
grouped_params = [{
'params': weight_decay_params,
'weight_decay': 1e-4
}, {
'params': no_weight_decay_params,
'weight_decay': 0.
}]
optimizer = AdamWeightDecayOptimizer(grouped_params,
lr=args.lr,
betas=(0.9, 0.999),
eps=1e-6)
batches_acm, loss_acm, concept_loss_acm, arc_loss_acm, rel_loss_acm = 0, 0, 0, 0, 0
#model.load_state_dict(torch.load('./ckpt/epoch297_batch49999')['model'])
discarded_batches_acm = 0
queue = mp.Queue(10)
train_data_generator = mp.Process(target=data_proc,
args=(train_data, queue))
train_data_generator.start()
used_batches = 0
if args.resume_ckpt:
ckpt = torch.load(args.resume_ckpt)
model.load_state_dict(ckpt['model'])
optimizer.load_state_dict(ckpt['optimizer'])
batches_acm = ckpt['batches_acm']
del ckpt
model.train()
epoch = 0
while True:
batch = queue.get()
#print("epoch",epoch)
#print("batches_acm",batches_acm)
#print("used_batches",used_batches)
if isinstance(batch, str):
epoch += 1
print('epoch', epoch, 'done', 'batches', batches_acm)
else:
batch = move_to_device(batch, model.device)
concept_loss, arc_loss, rel_loss = model(batch)
loss = (concept_loss + arc_loss +
rel_loss) / args.batches_per_update
loss_value = loss.item()
concept_loss_value = concept_loss.item()
arc_loss_value = arc_loss.item()
rel_loss_value = rel_loss.item()
if batches_acm > args.warmup_steps and arc_loss_value > 5. * (
arc_loss_acm / batches_acm):
discarded_batches_acm += 1
print('abnormal', concept_loss.item(), arc_loss.item(),
rel_loss.item())
continue
loss_acm += loss_value
concept_loss_acm += concept_loss_value
arc_loss_acm += arc_loss_value
rel_loss_acm += rel_loss_value
loss.backward()
used_batches += 1
if not (used_batches % args.batches_per_update
== -1 % args.batches_per_update):
continue
batches_acm += 1
if args.world_size > 1:
average_gradients(model)
torch.nn.utils.clip_grad_norm_(model.parameters(), 1.0)
update_lr(optimizer, args.embed_dim, batches_acm,
args.warmup_steps)
optimizer.step()
optimizer.zero_grad()
if args.world_size == 1 or (dist.get_rank() == 0):
if batches_acm % args.print_every == -1 % args.print_every:
print(
'Train Epoch %d, Batch %d, Discarded Batch %d, conc_loss %.3f, arc_loss %.3f, rel_loss %.3f'
% (epoch, batches_acm, discarded_batches_acm,
concept_loss_acm / batches_acm, arc_loss_acm /
batches_acm, rel_loss_acm / batches_acm))
model.train()
if batches_acm % args.eval_every == -1 % args.eval_every:
model.eval()
torch.save(
{
'args': args,
'model': model.state_dict(),
'batches_acm': batches_acm,
'optimizer': optimizer.state_dict()
},
'%s/epoch%d_batch%d' % (args.ckpt, epoch, batches_acm))
model.train()
pickle.dump(self.sequence_autoencoder.to_json(), file)
with open(hyper_params_file, mode='wb') as file:
pickle.dump(self.get_hyper_params(), file)
def predict_sentences(predictions, vocab):
return [
" ".join(vocab.IdToWord(i) for i in prediction)
for prediction in predictions
]
if __name__ == '__main__':
vocab_file = '../vocab/vocab'
tokenizer_file = '../tokenizer/src_tokenizer'
vocab = Vocab(vocab_file, 100000)
tokenizer = Tokenizer(vocab)
with open(tokenizer_file, mode='wb') as file:
pickle.dump(tokenizer, file)
max_sequence_len = 10
batch_size = 4
p = Preprocessor(batch_size, 'data/sentences.txt', tokenizer,
max_sequence_len)
embedding_dim = 50
hidden_dim = 100
ae = AutoEncoder(max_sequence_len, vocab.NumIds(), embedding_dim,
hidden_dim)
ae.build_models()
reducelr_cb = ReduceLROnPlateau(monitor='val_loss',
factor=0.5,
def main(unused_argv):
FLAGS.sticker_path = os.path.join(FLAGS.base_path, FLAGS.sticker_path)
FLAGS.data_path = os.path.join(FLAGS.base_path, FLAGS.data_path)
FLAGS.test_path = os.path.join(FLAGS.base_path, FLAGS.test_path)
FLAGS.vocab_path = os.path.join(FLAGS.base_path, FLAGS.vocab_path)
FLAGS.emoji_vocab_path = os.path.join(FLAGS.base_path, FLAGS.emoji_vocab_path)
FLAGS.inception_ckpt = os.path.join(FLAGS.base_path, FLAGS.inception_ckpt)
if 'decode' in FLAGS.mode:
FLAGS.single_pass = True
FLAGS.batch_size = 4
FLAGS.dataset_size = -1
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
emoji_vocab = Vocab(FLAGS.emoji_vocab_path, FLAGS.emoji_vocab_size) # create a vocabulary
if 'decode' in FLAGS.mode:
batcher = Batcher(FLAGS.test_path, vocab, emoji_vocab, single_pass=FLAGS.single_pass)
else:
batcher = Batcher(FLAGS.data_path, vocab, emoji_vocab, single_pass=FLAGS.single_pass)
if 'decode' in FLAGS.mode:
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '3'
import logging
log = logging.getLogger('tensorflow')
log.setLevel(logging.FATAL)
for h in log.handlers:
log.removeHandler(h)
log.addHandler(logging.NullHandler())
# GPU tricks
if FLAGS.device is None:
index_of_gpu = get_available_gpu()
if index_of_gpu < 0:
index_of_gpu = ''
FLAGS.device = index_of_gpu
tf.logging.info(bcolors.OKGREEN + 'using {}'.format(FLAGS.device) + bcolors.ENDC)
else:
index_of_gpu = FLAGS.device
os.environ["CUDA_VISIBLE_DEVICES"] = str(index_of_gpu)
tf.set_random_seed(5683) # a seed value for randomness
if len(unused_argv) != 1:
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting sticker classification in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception("Logdir %s doesn't exist. Run in train mode to create it." % (FLAGS.log_root))
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and 'decode' not in FLAGS.mode:
raise Exception("The single_pass flag should only be True in decode mode")
######################
# save parameters and python script
######################
export_json = {}
for key, val in FLAGS.__flags.items():
val = val._value
export_json[key] = val
# save parameters
tf.logging.info('saving parameters')
current_time_str = datetime.now().strftime('%m-%d-%H-%M')
json_para_file = open(os.path.join(FLAGS.log_root, 'flags-' + current_time_str + '-' + FLAGS.mode + '.json'), 'w')
json_para_file.write(json.dumps(export_json, indent=4) + '\n')
json_para_file.close()
# save python source code
FLAGS.current_source_code_zip = os.path.abspath(os.path.join(FLAGS.log_root, 'source_code_bak-' + current_time_str + '-' + FLAGS.mode + '.zip'))
tf.logging.info('saving source code: %s', FLAGS.current_source_code_zip)
python_list = glob.glob('./*.py')
zip_file = zipfile.ZipFile(FLAGS.current_source_code_zip, 'w')
for d in python_list:
zip_file.write(d)
for d in glob.glob('slim/*.py'):
zip_file.write(d)
for d in glob.glob('models/*.py'):
zip_file.write(d)
zip_file.close()
tf.set_random_seed(111) # a seed value for randomness
if FLAGS.mode == 'train':
tf.logging.info("creating model...")
model = StickerClassify()
setup_training(model, batcher, emoji_vocab)
elif FLAGS.mode == 'decode':
tf.logging.info("creating model...")
model = StickerClassify()
run_test(model, batcher, emoji_vocab)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode/auto_decode")
if __name__ == '__main__':
config = Config(
batch_size = 1,
char_embed_size = 25,
conv_kernel = 3,
depth = 1,
dropout = 0.5,
h_size = 256,
learning_rate = 0.01,
pool_size = 53
)
vocab = Vocab(f'etc/samnorsk.300.skipgram.bin', 'etc/gazetteer.txt')
output_types = (tf.float32, tf.float32, tf.float32, tf.int32, tf.int32, tf.int32, tf.int32)
output_shapes = (
[None, vocab.n_words], # Word embeddings for each word in the sentence
[None, vocab.n_pos], # one_hot encoded PoS for each word
[None, vocab.n_categories], # NE category memberships
[None, None], # The characters for each word
[None], # The number of characters pr word
[None], # The labels for each word
[] # the number of words in sentence
)
examples = tf.data.Dataset.from_generator(
vocab.examples(sys.argv[2]),
scripts_to_save=['main.py', 'model.py', 'nn_utils.py'])
def logging(s, print_=True, log_=True):
if print_:
print(s)
if log_:
with open(os.path.join(args.save, 'log.txt'), 'a+') as f_log:
f_log.write(s + '\n')
logging('Args')
for k, v in args.__dict__.items():
logging(' - {} : {}'.format(k, v))
vocab = Vocab('vocabv2.pkl', args.ntokens, '<unk>')
def get_file_list(filename):
return [line.strip() for line in open(filename)]
def get_tensors(filenames, cache_file=None):
if cache_file is not None and os.path.exists(cache_file):
return pickle.load(open(cache_file, 'rb'))
ret = []
for filename in filenames:
ret.extend(vocab.parse_file(filename))
if cache_file is not None:
pickle.dump(ret, open(cache_file, 'wb'))
return ret
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
if FLAGS.singles_and_pairs == 'both':
FLAGS.exp_name = FLAGS.exp_name + '_both'
exp_name = _exp_name + '_both'
dataset_articles = _dataset_articles
else:
FLAGS.exp_name = FLAGS.exp_name + '_singles'
exp_name = _exp_name + '_singles'
dataset_articles = _dataset_articles + '_singles'
my_log_dir = os.path.join(log_dir, FLAGS.ssi_exp_name)
print('Running statistics on %s' % FLAGS.exp_name)
if FLAGS.dataset_name != "":
FLAGS.data_path = os.path.join(FLAGS.data_root, FLAGS.dataset_name,
FLAGS.dataset_split + '*')
if not os.path.exists(os.path.join(
FLAGS.data_root, FLAGS.dataset_name)) or len(
os.listdir(os.path.join(FLAGS.data_root,
FLAGS.dataset_name))) == 0:
print(('No TF example data found at %s so creating it from raw data.' %
os.path.join(FLAGS.data_root, FLAGS.dataset_name)))
convert_data.process_dataset(FLAGS.dataset_name)
logging.set_verbosity(
logging.INFO) # choose what level of logging you want
logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.exp_name = FLAGS.exp_name if FLAGS.exp_name != '' else FLAGS.dataset_name
FLAGS.actual_log_root = FLAGS.log_root
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
'mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm', 'hidden_dim', 'emb_dim',
'batch_size', 'max_dec_steps', 'max_enc_steps', 'coverage',
'cov_loss_wt', 'pointer_gen', 'lambdamart_input'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
hps = namedtuple("HParams", list(hps_dict.keys()))(**hps_dict)
tf.set_random_seed(113) # a seed value for randomness
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
start_time = time.time()
np.random.seed(random_seed)
source_dir = os.path.join(data_dir, dataset_articles)
source_files = sorted(glob.glob(source_dir + '/' + dataset_split + '*'))
with open(os.path.join(my_log_dir, 'ssi.pkl')) as f:
ssi_list = pickle.load(f)
total = len(source_files
) * 1000 if 'cnn' or 'newsroom' in dataset_articles else len(
source_files)
example_generator = data.example_generator(source_dir + '/' +
dataset_split + '*',
True,
False,
should_check_valid=False)
# batcher = Batcher(None, vocab, hps, single_pass=FLAGS.single_pass)
model = SummarizationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, None, vocab)
decoder.decode_iteratively(example_generator, total, names_to_types,
ssi_list, hps)
a = 0
def main(unused_argv):
if len(
unused_argv) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
if FLAGS.dataset_name != "":
FLAGS.data_path = os.path.join(FLAGS.data_root, FLAGS.dataset_name,
FLAGS.dataset_split + '*')
if not os.path.exists(
os.path.join(FLAGS.data_root, FLAGS.dataset_name)) or len(
os.listdir(os.path.join(FLAGS.data_root, FLAGS.dataset_name))) == 0:
print(
'No TF example data found at %s so creating it from raw data.' % os.path.join(
FLAGS.data_root, FLAGS.dataset_name))
convert_data.process_dataset(FLAGS.dataset_name)
logging.set_verbosity(logging.INFO) # choose what level of logging you want
logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.exp_name = FLAGS.exp_name if FLAGS.exp_name != '' else FLAGS.dataset_name
FLAGS.actual_log_root = FLAGS.log_root
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = ['mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std',
'max_grad_norm', 'hidden_dim', 'emb_dim', 'batch_size',
'max_dec_steps',
'max_enc_steps', 'coverage', 'cov_loss_wt', 'pointer_gen']
hps_dict = {}
for key, val in FLAGS.__flags.iteritems(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
if FLAGS.pg_mmr or FLAGS.pg_mmr_sim or FLAGS.pg_mmr_diff:
# Fit the TFIDF vectorizer if not already fitted
if FLAGS.importance_fn == 'tfidf':
tfidf_model_path = os.path.join(FLAGS.actual_log_root,
'tfidf_vectorizer',
FLAGS.dataset_name + '.dill')
if not os.path.exists(tfidf_model_path):
print(
'No TFIDF vectorizer model file found at %s, so fitting the model now.' % tfidf_model_path)
tfidf_vectorizer = fit_tfidf_vectorizer(hps, vocab)
with open(tfidf_model_path, 'wb') as f:
dill.dump(tfidf_vectorizer, f)
# Train the SVR model on the CNN validation set if not already trained
if FLAGS.importance_fn == 'svr':
save_path = os.path.join(FLAGS.data_root, 'svr_training_data')
importance_model_path = os.path.join(FLAGS.actual_log_root,
'svr.pickle')
dataset_split = 'val'
if not os.path.exists(importance_model_path):
if not os.path.exists(save_path) or len(
os.listdir(save_path)) == 0:
print(
'No importance_feature instances found at %s so creating it from raw data.' % save_path)
decode_model_hps = hps._replace(
max_dec_steps=1, batch_size=100,
mode='calc_features') # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
cnn_dm_train_data_path = os.path.join(FLAGS.data_root,
FLAGS.dataset_name,
dataset_split + '*')
batcher = Batcher(cnn_dm_train_data_path, vocab,
decode_model_hps,
single_pass=FLAGS.single_pass,
cnn_500_dm_500=False)
calc_features(cnn_dm_train_data_path, decode_model_hps,
vocab, batcher, save_path)
print(
'No importance_feature SVR model found at %s so training it now.' % importance_model_path)
features_list = importance_features.get_features_list(True)
sent_reps = importance_features.load_data(
os.path.join(save_path, dataset_split + '*'), -1)
print 'Loaded %d sentences representations' % len(sent_reps)
x_y = importance_features.features_to_array(sent_reps,
features_list)
train_x, train_y = x_y[:, :-1], x_y[:, -1]
svr_model = importance_features.run_training(train_x, train_y)
with open(importance_model_path, 'wb') as f:
cPickle.dump(svr_model, f)
# Create a batcher object that will create minibatches of data
batcher = Batcher(FLAGS.data_path, vocab, hps,
single_pass=FLAGS.single_pass)
tf.set_random_seed(111) # a seed value for randomness
# Start decoding on multi-document inputs
if hps.mode == 'decode':
decode_model_hps = hps._replace(
max_dec_steps=1) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.decode() # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
if FLAGS.dataset_name != "":
FLAGS.data_path = os.path.join(FLAGS.data_root, FLAGS.dataset_name,
FLAGS.dataset_split + '*')
if not os.path.exists(os.path.join(
FLAGS.data_root, FLAGS.dataset_name)) or len(
os.listdir(os.path.join(FLAGS.data_root,
FLAGS.dataset_name))) == 0:
raise Exception('No TF example data found at %s.' %
os.path.join(FLAGS.data_root, FLAGS.dataset_name))
if FLAGS.singles_and_pairs == 'both':
FLAGS.exp_name = FLAGS.exp_name + '_both'
elif FLAGS.singles_and_pairs == 'singles':
FLAGS.exp_name = FLAGS.exp_name + '_singles'
logging.set_verbosity(
logging.INFO) # choose what level of logging you want
logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.exp_name = FLAGS.exp_name if FLAGS.exp_name != '' else FLAGS.dataset_name
FLAGS.actual_log_root = FLAGS.log_root
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
print(util.bcolors.OKGREEN + "Experiment path: " + FLAGS.log_root +
util.bcolors.ENDC)
if FLAGS.dataset_name == 'duc_2004':
vocab = Vocab(FLAGS.vocab_path + '_' + 'cnn_dm',
FLAGS.vocab_size) # create a vocabulary
else:
vocab = Vocab(FLAGS.vocab_path + '_' + FLAGS.dataset_name,
FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
item for item in list(FLAGS.flag_values_dict().keys()) if item != '?'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
hps = namedtuple("HParams", list(hps_dict.keys()))(**hps_dict)
# Create a batcher object that will create minibatches of data
batcher = Batcher(FLAGS.data_path,
vocab,
hps,
single_pass=FLAGS.single_pass)
tf.set_random_seed(113) # a seed value for randomness
# Start decoding
if hps.mode == 'train':
print("creating model...")
model = SummarizationModel(hps, vocab)
setup_training(model, batcher)
elif hps.mode == 'eval':
model = SummarizationModel(hps, vocab)
run_eval(model, batcher, vocab)
elif hps.mode == 'decode':
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.decode(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
from flask import Flask, jsonify, request
from flask import render_template
import config
from data import Vocab
from predict import build_batch_by_article
from predict import BeamSearch
model_path = "./logs/weibo_adagrad/train_20201204_215649/model/zh45000"
vocab = Vocab("./dataset/finished_files/vocab", config.vocab_size)
envocab = Vocab("./dataset/envocab", config.vocab_size)
beam_processor = BeamSearch(model_path, vocab) # 注意需要选词汇表进行中英文摘要
def ptrnet_predict(text):
return "ptrnet"
app = Flask(
__name__,
static_folder='assets',
)
@app.route('/ptrnet', methods=['POST'])
def pnpredict():
if request.method == 'POST':
plaintext = request.get_json()['text']
# print(plaintext)
try:
batch = build_batch_by_article(plaintext, vocab)
summary = beam_processor.decode(batch)
class Seq2Seq(object):
def calc_running_avg_loss(self, loss, running_avg_loss, step, decay=0.99):
"""Calculate the running average loss via exponential decay.
This is used to implement early stopping w.r.t. a more smooth loss curve than the raw loss curve.
Args:
loss: loss on the most recent eval step
running_avg_loss: running_avg_loss so far
summary_writer: FileWriter object to write for tensorboard
step: training iteration step
decay: rate of exponential decay, a float between 0 and 1. Larger is smoother.
Returns:
running_avg_loss: new running average loss
"""
if running_avg_loss == 0: # on the first iteration just take the loss
running_avg_loss = loss
else:
running_avg_loss = running_avg_loss * decay + (1 - decay) * loss
running_avg_loss = min(running_avg_loss, 12) # clip
loss_sum = tf.Summary()
tag_name = 'running_avg_loss/decay=%f' % (decay)
loss_sum.value.add(tag=tag_name, simple_value=running_avg_loss)
self.summary_writer.add_summary(loss_sum, step)
tf.logging.info('running_avg_loss: %f', running_avg_loss)
return running_avg_loss
def restore_best_model(self):
"""Load bestmodel file from eval directory, add variables for adagrad, and save to train directory"""
tf.logging.info("Restoring bestmodel for training...")
# Initialize all vars in the model
sess = tf.Session(config=util.get_config())
print "Initializing all variables..."
sess.run(tf.initialize_all_variables())
# Restore the best model from eval dir
saver = tf.train.Saver([v for v in tf.all_variables() if "Adagrad" not in v.name])
print "Restoring all non-adagrad variables from best model in eval dir..."
curr_ckpt = util.load_ckpt(saver, sess, "eval")
print "Restored %s." % curr_ckpt
# Save this model to train dir and quit
new_model_name = curr_ckpt.split("/")[-1].replace("bestmodel", "model")
new_fname = os.path.join(FLAGS.log_root, "train", new_model_name)
print "Saving model to %s..." % (new_fname)
new_saver = tf.train.Saver() # this saver saves all variables that now exist, including Adagrad variables
new_saver.save(sess, new_fname)
print "Saved."
exit()
def restore_best_eval_model(self):
# load best evaluation loss so far
best_loss = None
best_step = None
# goes through all event files and select the best loss achieved and return it
event_files = sorted(glob('{}/eval/events*'.format(FLAGS.log_root)))
for ef in event_files:
try:
for e in tf.train.summary_iterator(ef):
for v in e.summary.value:
step = e.step
if 'running_avg_loss/decay' in v.tag:
running_avg_loss = v.simple_value
if best_loss is None or running_avg_loss < best_loss:
best_loss = running_avg_loss
best_step = step
except:
continue
tf.logging.info('resotring best loss from the current logs: {}\tstep: {}'.format(best_loss, best_step))
return best_loss
def convert_to_coverage_model(self):
"""Load non-coverage checkpoint, add initialized extra variables for coverage, and save as new checkpoint"""
tf.logging.info("converting non-coverage model to coverage model..")
# initialize an entire coverage model from scratch
sess = tf.Session(config=util.get_config())
print "initializing everything..."
sess.run(tf.global_variables_initializer())
# load all non-coverage weights from checkpoint
saver = tf.train.Saver([v for v in tf.global_variables() if "coverage" not in v.name and "Adagrad" not in v.name])
print "restoring non-coverage variables..."
curr_ckpt = util.load_ckpt(saver, sess)
print "restored."
# save this model and quit
new_fname = curr_ckpt + '_cov_init'
print "saving model to %s..." % (new_fname)
new_saver = tf.train.Saver() # this one will save all variables that now exist
new_saver.save(sess, new_fname)
print "saved."
exit()
def convert_to_reinforce_model(self):
"""Load non-reinforce checkpoint, add initialized extra variables for reinforce, and save as new checkpoint"""
tf.logging.info("converting non-reinforce model to reinforce model..")
# initialize an entire reinforce model from scratch
sess = tf.Session(config=util.get_config())
print "initializing everything..."
sess.run(tf.global_variables_initializer())
# load all non-reinforce weights from checkpoint
saver = tf.train.Saver([v for v in tf.global_variables() if "reinforce" not in v.name and "Adagrad" not in v.name])
print "restoring non-reinforce variables..."
curr_ckpt = util.load_ckpt(saver, sess)
print "restored."
# save this model and quit
new_fname = curr_ckpt + '_rl_init'
print "saving model to %s..." % (new_fname)
new_saver = tf.train.Saver() # this one will save all variables that now exist
new_saver.save(sess, new_fname)
print "saved."
exit()
def setup_training(self):
"""Does setup before starting training (run_training)"""
train_dir = os.path.join(FLAGS.log_root, "train")
if not os.path.exists(train_dir): os.makedirs(train_dir)
if FLAGS.ac_training:
dqn_train_dir = os.path.join(FLAGS.log_root, "dqn", "train")
if not os.path.exists(dqn_train_dir): os.makedirs(dqn_train_dir)
#replaybuffer_pcl_path = os.path.join(FLAGS.log_root, "replaybuffer.pcl")
#if not os.path.exists(dqn_target_train_dir): os.makedirs(dqn_target_train_dir)
self.model.build_graph() # build the graph
if FLAGS.convert_to_reinforce_model:
assert (FLAGS.rl_training or FLAGS.ac_training), "To convert your pointer model to a reinforce model, run with convert_to_reinforce_model=True and either rl_training=True or ac_training=True"
self.convert_to_reinforce_model()
if FLAGS.convert_to_coverage_model:
assert FLAGS.coverage, "To convert your non-coverage model to a coverage model, run with convert_to_coverage_model=True and coverage=True"
self.convert_to_coverage_model()
if FLAGS.restore_best_model:
self.restore_best_model()
saver = tf.train.Saver(max_to_keep=3) # keep 3 checkpoints at a time
# Loads pre-trained word-embedding. By default the model learns the embedding.
if FLAGS.embedding:
self.vocab.LoadWordEmbedding(FLAGS.embedding, FLAGS.emb_dim)
word_vector = self.vocab.getWordEmbedding()
self.sv = tf.train.Supervisor(logdir=train_dir,
is_chief=True,
saver=saver,
summary_op=None,
save_summaries_secs=60, # save summaries for tensorboard every 60 secs
save_model_secs=60, # checkpoint every 60 secs
global_step=self.model.global_step,
init_feed_dict= {self.model.embedding_place:word_vector} if FLAGS.embedding else None
)
self.summary_writer = self.sv.summary_writer
self.sess = self.sv.prepare_or_wait_for_session(config=util.get_config())
if FLAGS.ac_training:
tf.logging.info('DDQN building graph')
t1 = time.time()
# We create a separate graph for DDQN
self.dqn_graph = tf.Graph()
with self.dqn_graph.as_default():
self.dqn.build_graph() # build dqn graph
tf.logging.info('building current network took {} seconds'.format(time.time()-t1))
self.dqn_target.build_graph() # build dqn target graph
tf.logging.info('building target network took {} seconds'.format(time.time()-t1))
dqn_saver = tf.train.Saver(max_to_keep=3) # keep 3 checkpoints at a time
self.dqn_sv = tf.train.Supervisor(logdir=dqn_train_dir,
is_chief=True,
saver=dqn_saver,
summary_op=None,
save_summaries_secs=60, # save summaries for tensorboard every 60 secs
save_model_secs=60, # checkpoint every 60 secs
global_step=self.dqn.global_step,
)
self.dqn_summary_writer = self.dqn_sv.summary_writer
self.dqn_sess = self.dqn_sv.prepare_or_wait_for_session(config=util.get_config())
''' #### TODO: try loading a previously saved replay buffer
# right now this doesn't work due to running DQN on a thread
if os.path.exists(replaybuffer_pcl_path):
tf.logging.info('Loading Replay Buffer...')
try:
self.replay_buffer = pickle.load(open(replaybuffer_pcl_path, "rb"))
tf.logging.info('Replay Buffer loaded...')
except:
tf.logging.info('Couldn\'t load Replay Buffer file...')
self.replay_buffer = ReplayBuffer(self.dqn_hps)
else:
self.replay_buffer = ReplayBuffer(self.dqn_hps)
tf.logging.info("Building DDQN took {} seconds".format(time.time()-t1))
'''
self.replay_buffer = ReplayBuffer(self.dqn_hps)
tf.logging.info("Preparing or waiting for session...")
tf.logging.info("Created session.")
try:
self.run_training() # this is an infinite loop until interrupted
except (KeyboardInterrupt, SystemExit):
tf.logging.info("Caught keyboard interrupt on worker. Stopping supervisor...")
self.sv.stop()
if FLAGS.ac_training:
self.dqn_sv.stop()
def run_training(self):
"""Repeatedly runs training iterations, logging loss to screen and writing summaries"""
tf.logging.info("Starting run_training")
if FLAGS.debug: # start the tensorflow debugger
self.sess = tf_debug.LocalCLIDebugWrapperSession(self.sess)
self.sess.add_tensor_filter("has_inf_or_nan", tf_debug.has_inf_or_nan)
self.train_step = 0
if FLAGS.ac_training:
# DDQN training is done asynchronously along with model training
tf.logging.info('Starting DQN training thread...')
self.dqn_train_step = 0
self.thrd_dqn_training = Thread(target=self.dqn_training)
self.thrd_dqn_training.daemon = True
self.thrd_dqn_training.start()
watcher = Thread(target=self.watch_threads)
watcher.daemon = True
watcher.start()
# starting the main thread
tf.logging.info('Starting Seq2Seq training...')
while True: # repeats until interrupted
batch = self.batcher.next_batch()
t0=time.time()
if FLAGS.ac_training:
# For DDQN, we first collect the model output to calculate the reward and Q-estimates
# Then we fix the estimation either using our target network or using the true Q-values
# This process will usually take time and we are working on improving it.
transitions = self.model.collect_dqn_transitions(self.sess, batch, self.train_step, batch.max_art_oovs) # len(batch_size * k * max_dec_steps)
tf.logging.info('Q-values collection time: {}'.format(time.time()-t0))
# whenever we are working with the DDQN, we switch using DDQN graph rather than default graph
with self.dqn_graph.as_default():
batch_len = len(transitions)
# we use current decoder state to predict q_estimates, use_state_prime = False
b = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = False, max_art_oovs = batch.max_art_oovs)
# we also get the next decoder state to correct the estimation, use_state_prime = True
b_prime = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = True, max_art_oovs = batch.max_art_oovs)
# use current DQN to estimate values from current decoder state
dqn_results = self.dqn.run_test_steps(sess=self.dqn_sess, x= b._x, return_best_action=True)
q_estimates = dqn_results['estimates'] # shape (len(transitions), vocab_size)
dqn_best_action = dqn_results['best_action']
#dqn_q_estimate_loss = dqn_results['loss']
# use target DQN to estimate values for the next decoder state
dqn_target_results = self.dqn_target.run_test_steps(self.dqn_sess, x= b_prime._x)
q_vals_new_t = dqn_target_results['estimates'] # shape (len(transitions), vocab_size)
# we need to expand the q_estimates to match the input batch max_art_oov
# we use the q_estimate of UNK token for all the OOV tokens
q_estimates = np.concatenate([q_estimates,
np.reshape(q_estimates[:,0],[-1,1])*np.ones((len(transitions),batch.max_art_oovs))],axis=-1)
# modify Q-estimates using the result collected from current and target DQN.
# check algorithm 5 in the paper for more info: https://arxiv.org/pdf/1805.09461.pdf
for i, tr in enumerate(transitions):
if tr.done:
q_estimates[i][tr.action] = tr.reward
else:
q_estimates[i][tr.action] = tr.reward + FLAGS.gamma * q_vals_new_t[i][dqn_best_action[i]]
# use scheduled sampling to whether use true Q-values or DDQN estimation
if FLAGS.dqn_scheduled_sampling:
q_estimates = self.scheduled_sampling(batch_len, FLAGS.sampling_probability, b._y_extended, q_estimates)
if not FLAGS.calculate_true_q:
# when we are not training DDQN based on true Q-values,
# we need to update Q-values in our transitions based on the q_estimates we collected from DQN current network.
for trans, q_val in zip(transitions,q_estimates):
trans.q_values = q_val # each have the size vocab_extended
q_estimates = np.reshape(q_estimates, [FLAGS.batch_size, FLAGS.k, FLAGS.max_dec_steps, -1]) # shape (batch_size, k, max_dec_steps, vocab_size_extended)
# Once we are done with modifying Q-values, we can use them to train the DDQN model.
# In this paper, we use a priority experience buffer which always selects states with higher quality
# to train the DDQN. The following line will add batch_size * max_dec_steps experiences to the replay buffer.
# As mentioned before, the DDQN training is asynchronous. Therefore, once the related queues for DDQN training
# are full, the DDQN will start the training.
self.replay_buffer.add(transitions)
# If dqn_pretrain flag is on, it means that we use a fixed Actor to only collect experiences for
# DDQN pre-training
if FLAGS.dqn_pretrain:
tf.logging.info('RUNNNING DQN PRETRAIN: Adding data to relplay buffer only...')
continue
# if not, use the q_estimation to update the loss.
results = self.model.run_train_steps(self.sess, batch, self.train_step, q_estimates)
else:
results = self.model.run_train_steps(self.sess, batch, self.train_step)
t1=time.time()
# get the summaries and iteration number so we can write summaries to tensorboard
summaries = results['summaries'] # we will write these summaries to tensorboard using summary_writer
self.train_step = results['global_step'] # we need this to update our running average loss
tf.logging.info('seconds for training step {}: {}'.format(self.train_step, t1-t0))
printer_helper = {}
printer_helper['pgen_loss']= results['pgen_loss']
if FLAGS.coverage:
printer_helper['coverage_loss'] = results['coverage_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['rl_cov_total_loss']= results['reinforce_cov_total_loss']
else:
printer_helper['pointer_cov_total_loss'] = results['pointer_cov_total_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['shared_loss'] = results['shared_loss']
printer_helper['rl_loss'] = results['rl_loss']
printer_helper['rl_avg_logprobs'] = results['rl_avg_logprobs']
if FLAGS.rl_training:
printer_helper['sampled_r'] = np.mean(results['sampled_sentence_r_values'])
printer_helper['greedy_r'] = np.mean(results['greedy_sentence_r_values'])
printer_helper['r_diff'] = printer_helper['sampled_r'] - printer_helper['greedy_r']
if FLAGS.ac_training:
printer_helper['dqn_loss'] = np.mean(self.avg_dqn_loss) if len(self.avg_dqn_loss)>0 else 0
for (k,v) in printer_helper.items():
if not np.isfinite(v):
raise Exception("{} is not finite. Stopping.".format(k))
tf.logging.info('{}: {}\t'.format(k,v))
tf.logging.info('-------------------------------------------')
self.summary_writer.add_summary(summaries, self.train_step) # write the summaries
if self.train_step % 100 == 0: # flush the summary writer every so often
self.summary_writer.flush()
if FLAGS.ac_training:
self.dqn_summary_writer.flush()
if self.train_step > FLAGS.max_iter: break
def dqn_training(self):
""" training the DDQN network."""
try:
while True:
if self.dqn_train_step == FLAGS.dqn_pretrain_steps: raise SystemExit()
_t = time.time()
self.avg_dqn_loss = []
avg_dqn_target_loss = []
# Get a batch of size dqn_batch_size from replay buffer to train the model
dqn_batch = self.replay_buffer.next_batch()
if dqn_batch is None:
tf.logging.info('replay buffer not loaded enough yet...')
time.sleep(60)
continue
# Run train step for Current DQN model and collect the results
dqn_results = self.dqn.run_train_steps(self.dqn_sess, dqn_batch)
# Run test step for Target DQN model and collect the results and monitor the difference in loss between the two
dqn_target_results = self.dqn_target.run_test_steps(self.dqn_sess, x=dqn_batch._x, y=dqn_batch._y, return_loss=True)
self.dqn_train_step = dqn_results['global_step']
self.dqn_summary_writer.add_summary(dqn_results['summaries'], self.dqn_train_step) # write the summaries
self.avg_dqn_loss.append(dqn_results['loss'])
avg_dqn_target_loss.append(dqn_target_results['loss'])
self.dqn_train_step = self.dqn_train_step + 1
tf.logging.info('seconds for training dqn model: {}'.format(time.time()-_t))
# UPDATING TARGET DDQN NETWORK WITH CURRENT MODEL
with self.dqn_graph.as_default():
current_model_weights = self.dqn_sess.run([self.dqn.model_trainables])[0] # get weights of current model
self.dqn_target.run_update_weights(self.dqn_sess, self.dqn_train_step, current_model_weights) # update target model weights with current model weights
tf.logging.info('DQN loss at step {}: {}'.format(self.dqn_train_step, np.mean(self.avg_dqn_loss)))
tf.logging.info('DQN Target loss at step {}: {}'.format(self.dqn_train_step, np.mean(avg_dqn_target_loss)))
# sleeping is required if you want the keyboard interuption to work
time.sleep(FLAGS.dqn_sleep_time)
except (KeyboardInterrupt, SystemExit):
tf.logging.info("Caught keyboard interrupt on worker. Stopping supervisor...")
self.sv.stop()
self.dqn_sv.stop()
def watch_threads(self):
"""Watch example queue and batch queue threads and restart if dead."""
while True:
time.sleep(60)
if not self.thrd_dqn_training.is_alive(): # if the thread is dead
tf.logging.error('Found DQN Learning thread dead. Restarting.')
self.thrd_dqn_training = Thread(target=self.dqn_training)
self.thrd_dqn_training.daemon = True
self.thrd_dqn_training.start()
def run_eval(self):
"""Repeatedly runs eval iterations, logging to screen and writing summaries. Saves the model with the best loss seen so far."""
self.model.build_graph() # build the graph
saver = tf.train.Saver(max_to_keep=3) # we will keep 3 best checkpoints at a time
sess = tf.Session(config=util.get_config())
if FLAGS.embedding:
sess.run(tf.global_variables_initializer(),feed_dict={self.model.embedding_place:self.word_vector})
eval_dir = os.path.join(FLAGS.log_root, "eval") # make a subdir of the root dir for eval data
bestmodel_save_path = os.path.join(eval_dir, 'bestmodel') # this is where checkpoints of best models are saved
summary_writer = tf.summary.FileWriter(eval_dir)
if FLAGS.ac_training:
tf.logging.info('DDQN building graph')
t1 = time.time()
dqn_graph = tf.Graph()
with dqn_graph.as_default():
self.dqn.build_graph() # build dqn graph
tf.logging.info('building current network took {} seconds'.format(time.time()-t1))
self.dqn_target.build_graph() # build dqn target graph
tf.logging.info('building target network took {} seconds'.format(time.time()-t1))
dqn_saver = tf.train.Saver(max_to_keep=3) # keep 3 checkpoints at a time
dqn_sess = tf.Session(config=util.get_config())
dqn_train_step = 0
replay_buffer = ReplayBuffer(self.dqn_hps)
running_avg_loss = 0 # the eval job keeps a smoother, running average loss to tell it when to implement early stopping
best_loss = self.restore_best_eval_model() # will hold the best loss achieved so far
train_step = 0
while True:
_ = util.load_ckpt(saver, sess) # load a new checkpoint
if FLAGS.ac_training:
_ = util.load_dqn_ckpt(dqn_saver, dqn_sess) # load a new checkpoint
processed_batch = 0
avg_losses = []
# evaluate for 100 * batch_size before comparing the loss
# we do this due to memory constraint, best to run eval on different machines with large batch size
while processed_batch < 100*FLAGS.batch_size:
processed_batch += FLAGS.batch_size
batch = self.batcher.next_batch() # get the next batch
if FLAGS.ac_training:
t0 = time.time()
transitions = self.model.collect_dqn_transitions(sess, batch, train_step, batch.max_art_oovs) # len(batch_size * k * max_dec_steps)
tf.logging.info('Q values collection time: {}'.format(time.time()-t0))
with dqn_graph.as_default():
# if using true Q-value to train DQN network,
# we do this as the pre-training for the DQN network to get better estimates
batch_len = len(transitions)
b = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = True, max_art_oovs = batch.max_art_oovs)
b_prime = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = True, max_art_oovs = batch.max_art_oovs)
dqn_results = self.dqn.run_test_steps(sess=dqn_sess, x= b._x, return_best_action=True)
q_estimates = dqn_results['estimates'] # shape (len(transitions), vocab_size)
dqn_best_action = dqn_results['best_action']
tf.logging.info('running test step on dqn_target')
dqn_target_results = self.dqn_target.run_test_steps(dqn_sess, x= b_prime._x)
q_vals_new_t = dqn_target_results['estimates'] # shape (len(transitions), vocab_size)
# we need to expand the q_estimates to match the input batch max_art_oov
q_estimates = np.concatenate([q_estimates,np.zeros((len(transitions),batch.max_art_oovs))],axis=-1)
tf.logging.info('fixing the action q-estimates')
for i, tr in enumerate(transitions):
if tr.done:
q_estimates[i][tr.action] = tr.reward
else:
q_estimates[i][tr.action] = tr.reward + FLAGS.gamma * q_vals_new_t[i][dqn_best_action[i]]
if FLAGS.dqn_scheduled_sampling:
tf.logging.info('scheduled sampling on q-estimates')
q_estimates = self.scheduled_sampling(batch_len, FLAGS.sampling_probability, b._y_extended, q_estimates)
if not FLAGS.calculate_true_q:
# when we are not training DQN based on true Q-values
# we need to update Q-values in our transitions based on this q_estimates we collected from DQN current network.
for trans, q_val in zip(transitions,q_estimates):
trans.q_values = q_val # each have the size vocab_extended
q_estimates = np.reshape(q_estimates, [FLAGS.batch_size, FLAGS.k, FLAGS.max_dec_steps, -1]) # shape (batch_size, k, max_dec_steps, vocab_size_extended)
tf.logging.info('run eval step on seq2seq model.')
t0=time.time()
results = self.model.run_eval_step(sess, batch, train_step, q_estimates)
t1=time.time()
else:
tf.logging.info('run eval step on seq2seq model.')
t0=time.time()
results = self.model.run_eval_step(sess, batch, train_step)
t1=time.time()
tf.logging.info('experiment: {}'.format(FLAGS.exp_name))
tf.logging.info('processed_batch: {}, seconds for batch: {}'.format(processed_batch, t1-t0))
printer_helper = {}
loss = printer_helper['pgen_loss']= results['pgen_loss']
if FLAGS.coverage:
printer_helper['coverage_loss'] = results['coverage_loss']
if FLAGS.rl_training or FLAGS.ac_training:
loss = printer_helper['rl_cov_total_loss']= results['reinforce_cov_total_loss']
else:
loss = printer_helper['pointer_cov_total_loss'] = results['pointer_cov_total_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['shared_loss'] = results['shared_loss']
printer_helper['rl_loss'] = results['rl_loss']
printer_helper['rl_avg_logprobs'] = results['rl_avg_logprobs']
for (k,v) in printer_helper.items():
if not np.isfinite(v):
raise Exception("{} is not finite. Stopping.".format(k))
tf.logging.info('{}: {}\t'.format(k,v))
# add summaries
summaries = results['summaries']
train_step = results['global_step']
summary_writer.add_summary(summaries, train_step)
# calculate running avg loss
avg_losses.append(self.calc_running_avg_loss(np.asscalar(loss), running_avg_loss, summary_writer, train_step))
tf.logging.info('-------------------------------------------')
running_avg_loss = np.mean(avg_losses)
tf.logging.info('==========================================')
tf.logging.info('best_loss: {}\trunning_avg_loss: {}\t'.format(best_loss, running_avg_loss))
tf.logging.info('==========================================')
# If running_avg_loss is best so far, save this checkpoint (early stopping).
# These checkpoints will appear as bestmodel-<iteration_number> in the eval dir
if best_loss is None or running_avg_loss < best_loss:
tf.logging.info('Found new best model with %.3f running_avg_loss. Saving to %s', running_avg_loss, bestmodel_save_path)
saver.save(sess, bestmodel_save_path, global_step=train_step, latest_filename='checkpoint_best')
best_loss = running_avg_loss
# flush the summary writer every so often
if train_step % 100 == 0:
summary_writer.flush()
#time.sleep(600) # run eval every 10 minute
def main(self, unused_argv):
if len(unused_argv) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
tf.logging.set_verbosity(tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
flags = getattr(FLAGS,"__flags")
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode=="train":
os.makedirs(FLAGS.log_root)
fw = open('{}/config.txt'.format(FLAGS.log_root),'w')
for k,v in flags.iteritems():
fw.write('{}\t{}\n'.format(k,v))
fw.close()
else:
raise Exception("Logdir %s doesn't exist. Run in train mode to create it." % (FLAGS.log_root))
self.vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode!='decode':
raise Exception("The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = ['mode', 'lr', 'gpu_num',
#'sampled_greedy_flag',
'gamma', 'eta',
'fixed_eta', 'reward_function', 'intradecoder',
'use_temporal_attention', 'ac_training','rl_training', 'matrix_attention', 'calculate_true_q',
'enc_hidden_dim', 'dec_hidden_dim', 'k',
'scheduled_sampling', 'sampling_probability','fixed_sampling_probability',
'alpha', 'hard_argmax', 'greedy_scheduled_sampling',
'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm',
'emb_dim', 'batch_size', 'max_dec_steps', 'max_enc_steps',
'dqn_scheduled_sampling', 'dqn_sleep_time', 'E2EBackProp',
'coverage', 'cov_loss_wt', 'pointer_gen']
hps_dict = {}
for key,val in flags.iteritems(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
if FLAGS.ac_training:
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
self.hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# creating all the required parameters for DDQN model.
if FLAGS.ac_training:
hparam_list = ['lr', 'dqn_gpu_num',
'dqn_layers',
'dqn_replay_buffer_size',
'dqn_batch_size',
'dqn_target_update',
'dueling_net',
'dqn_polyak_averaging',
'dqn_sleep_time',
'dqn_scheduled_sampling',
'max_grad_norm']
hps_dict = {}
for key,val in flags.iteritems(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
hps_dict.update({'vocab_size':self.vocab.size()})
self.dqn_hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
self.batcher = Batcher(FLAGS.data_path, self.vocab, self.hps, single_pass=FLAGS.single_pass, decode_after=FLAGS.decode_after)
tf.set_random_seed(111) # a seed value for randomness
if self.hps.mode == 'train':
print "creating model..."
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
# current DQN with paramters \Psi
self.dqn = DQN(self.dqn_hps,'current')
# target DQN with paramters \Psi^{\prime}
self.dqn_target = DQN(self.dqn_hps,'target')
self.setup_training()
elif self.hps.mode == 'eval':
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
self.dqn = DQN(self.dqn_hps,'current')
self.dqn_target = DQN(self.dqn_hps,'target')
self.run_eval()
elif self.hps.mode == 'decode':
decode_model_hps = self.hps # This will be the hyperparameters for the decoder model
decode_model_hps = self.hps._replace(max_dec_steps=1) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, self.vocab)
if FLAGS.ac_training:
# We need our target DDQN network for collecting Q-estimation at each decoder step.
dqn_target = DQN(self.dqn_hps,'target')
else:
dqn_target = None
decoder = BeamSearchDecoder(model, self.batcher, self.vocab, dqn = dqn_target)
decoder.decode() # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
# Scheduled sampling used for either selecting true Q-estimates or the DDQN estimation
# based on https://www.tensorflow.org/api_docs/python/tf/contrib/seq2seq/ScheduledEmbeddingTrainingHelper
def scheduled_sampling(self, batch_size, sampling_probability, true, estimate):
with variable_scope.variable_scope("ScheduledEmbedding"):
# Return -1s where we do not sample, and sample_ids elsewhere
select_sampler = bernoulli.Bernoulli(probs=sampling_probability, dtype=tf.bool)
select_sample = select_sampler.sample(sample_shape=batch_size)
sample_ids = array_ops.where(
select_sample,
tf.range(batch_size),
gen_array_ops.fill([batch_size], -1))
where_sampling = math_ops.cast(
array_ops.where(sample_ids > -1), tf.int32)
where_not_sampling = math_ops.cast(
array_ops.where(sample_ids <= -1), tf.int32)
_estimate = array_ops.gather_nd(estimate, where_sampling)
_true = array_ops.gather_nd(true, where_not_sampling)
base_shape = array_ops.shape(true)
result1 = array_ops.scatter_nd(indices=where_sampling, updates=_estimate, shape=base_shape)
result2 = array_ops.scatter_nd(indices=where_not_sampling, updates=_true, shape=base_shape)
result = result1 + result2
return result1 + result2
def main(self, unused_argv):
if len(unused_argv) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
tf.logging.set_verbosity(tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
flags = getattr(FLAGS,"__flags")
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode=="train":
os.makedirs(FLAGS.log_root)
fw = open('{}/config.txt'.format(FLAGS.log_root),'w')
for k,v in flags.iteritems():
fw.write('{}\t{}\n'.format(k,v))
fw.close()
else:
raise Exception("Logdir %s doesn't exist. Run in train mode to create it." % (FLAGS.log_root))
self.vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode!='decode':
raise Exception("The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = ['mode', 'lr', 'gpu_num',
#'sampled_greedy_flag',
'gamma', 'eta',
'fixed_eta', 'reward_function', 'intradecoder',
'use_temporal_attention', 'ac_training','rl_training', 'matrix_attention', 'calculate_true_q',
'enc_hidden_dim', 'dec_hidden_dim', 'k',
'scheduled_sampling', 'sampling_probability','fixed_sampling_probability',
'alpha', 'hard_argmax', 'greedy_scheduled_sampling',
'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm',
'emb_dim', 'batch_size', 'max_dec_steps', 'max_enc_steps',
'dqn_scheduled_sampling', 'dqn_sleep_time', 'E2EBackProp',
'coverage', 'cov_loss_wt', 'pointer_gen']
hps_dict = {}
for key,val in flags.iteritems(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
if FLAGS.ac_training:
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
self.hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# creating all the required parameters for DDQN model.
if FLAGS.ac_training:
hparam_list = ['lr', 'dqn_gpu_num',
'dqn_layers',
'dqn_replay_buffer_size',
'dqn_batch_size',
'dqn_target_update',
'dueling_net',
'dqn_polyak_averaging',
'dqn_sleep_time',
'dqn_scheduled_sampling',
'max_grad_norm']
hps_dict = {}
for key,val in flags.iteritems(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
hps_dict.update({'vocab_size':self.vocab.size()})
self.dqn_hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
self.batcher = Batcher(FLAGS.data_path, self.vocab, self.hps, single_pass=FLAGS.single_pass, decode_after=FLAGS.decode_after)
tf.set_random_seed(111) # a seed value for randomness
if self.hps.mode == 'train':
print "creating model..."
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
# current DQN with paramters \Psi
self.dqn = DQN(self.dqn_hps,'current')
# target DQN with paramters \Psi^{\prime}
self.dqn_target = DQN(self.dqn_hps,'target')
self.setup_training()
elif self.hps.mode == 'eval':
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
self.dqn = DQN(self.dqn_hps,'current')
self.dqn_target = DQN(self.dqn_hps,'target')
self.run_eval()
elif self.hps.mode == 'decode':
decode_model_hps = self.hps # This will be the hyperparameters for the decoder model
decode_model_hps = self.hps._replace(max_dec_steps=1) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, self.vocab)
if FLAGS.ac_training:
# We need our target DDQN network for collecting Q-estimation at each decoder step.
dqn_target = DQN(self.dqn_hps,'target')
else:
dqn_target = None
decoder = BeamSearchDecoder(model, self.batcher, self.vocab, dqn = dqn_target)
decoder.decode() # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
parser.add_argument('--load_path', type=str)
parser.add_argument('--test_data', type=str)
parser.add_argument('--test_batch_size', type=int)
parser.add_argument('--beam_size', type= int)
parser.add_argument('--max_time_step', type=int)
parser.add_argument('--output_file', type = str)
parser.add_argument('--verbose', action='store_true')
return parser.parse_args()
if __name__ == "__main__":
args = parse_config()
ckpt = torch.load(args.load_path)
model_args = ckpt['args']
vocab_src = Vocab(model_args.vocab_src, with_SE = False)
vocab_tgt = Vocab(model_args.vocab_tgt, with_SE = True)
model = ResponseGenerator(vocab_src, vocab_tgt, model_args.embed_dim, model_args.hidden_size, model_args.num_layers, model_args.dropout, model_args.input_feed)
model.load_state_dict(ckpt['model'])
model = model.cuda()
test_data = DataLoader(args.test_data, vocab_src, vocab_tgt, args.test_batch_size, False)
model.eval()
if args.verbose:
queries = [ x.strip().split('|')[0] for x in open(args.test_data).readlines()]
qid = 0
with open(args.output_file, 'w') as fo:
for batch_dict in test_data:
class BeamSearch(object):
def __init__(self, model_file_path):
model_name = os.path.basename(model_file_path)
self._decode_dir = os.path.join(config.log_root,
'decode_%s' % (model_name))
self._rouge_ref_dir = os.path.join(self._decode_dir, 'rouge_ref')
self._rouge_dec_dir = os.path.join(self._decode_dir, 'rouge_dec_dir')
# 创建3个目录
for p in [self._decode_dir, self._rouge_ref_dir, self._rouge_dec_dir]:
if not os.path.exists(p):
os.mkdir(p)
self.vocab = Vocab(config.vocab_path, config.vocab_size)
self.batcher = Batcher(config.decode_data_path,
self.vocab,
mode='decode',
batch_size=config.beam_size,
single_pass=True)
time.sleep(15)
self.model = Model(model_file_path, is_eval=True)
def sort_beams(self, beams):
return sorted(beams, key=lambda h: h.avg_log_prob, reverse=True)
def decode(self):
start = time.time()
counter = 0
batch = self.batcher.next_batch()
while batch is not None:
# Run beam search to get best Hypothesis
best_summary = self.beam_search(batch)
# Extract the output ids from the hypothesis and convert back to words
output_ids = [int(t) for t in best_summary.tokens[1:]]
decoded_words = data.outputids2words(
output_ids, self.vocab,
(batch.art_oovs[0] if config.pointer_gen else None))
# Remove the [STOP] token from decoded_words, if necessary
try:
fst_stop_idx = decoded_words.index(data.STOP_DECODING)
decoded_words = decoded_words[:fst_stop_idx]
except ValueError:
decoded_words = decoded_words
original_abstract_sents = batch.original_abstracts_sents[0]
write_for_rouge(original_abstract_sents, decoded_words, counter,
self._rouge_ref_dir, self._rouge_dec_dir)
counter += 1
if counter % 1000 == 0:
print('%d example in %d sec' % (counter, time.time() - start))
start = time.time()
batch = self.batcher.next_batch()
print("Decoder has finished reading dataset for single_pass.")
print("Now starting ROUGE eval...")
results_dict = rouge_eval(self._rouge_ref_dir, self._rouge_dec_dir)
rouge_log(results_dict, self._decode_dir)
def beam_search(self, batch):
# batch should have only one example
enc_batch, enc_padding_mask, enc_lens, enc_batch_extend_vocab, extra_zeros, c_t_0, coverage_t_0 = \
get_input_from_batch(batch)
encoder_outputs, encoder_feature, encoder_hidden = self.model.encoder(
enc_batch, enc_lens)
s_t_0 = self.model.reduce_state(encoder_hidden)
dec_h, dec_c = s_t_0 # 1 x 2*hidden_size
dec_h = dec_h.squeeze()
dec_c = dec_c.squeeze()
# decoder batch preparation, it has beam_size example initially everything is repeated
beams = [
Beam(tokens=[self.vocab.word2id(data.START_DECODING)],
log_probs=[0.0],
state=(dec_h[0], dec_c[0]),
context=c_t_0[0],
coverage=(coverage_t_0[0] if config.is_coverage else None))
for _ in range(config.beam_size)
]
results = []
steps = 0
while steps < config.max_dec_steps and len(results) < config.beam_size:
latest_tokens = [h.latest_token for h in beams]
latest_tokens = [t if t < self.vocab.size() else self.vocab.word2id(data.UNKNOWN_TOKEN) \
for t in latest_tokens]
y_t_1 = Variable(torch.LongTensor(latest_tokens))
if USE_CUDA:
y_t_1 = y_t_1.to(DEVICE)
all_state_h = []
all_state_c = []
all_context = []
for h in beams:
state_h, state_c = h.state
all_state_h.append(state_h)
all_state_c.append(state_c)
all_context.append(h.context)
s_t_1 = (torch.stack(all_state_h,
0).unsqueeze(0), torch.stack(all_state_c,
0).unsqueeze(0))
c_t_1 = torch.stack(all_context, 0)
coverage_t_1 = None
if config.is_coverage:
all_coverage = []
for h in beams:
all_coverage.append(h.coverage)
coverage_t_1 = torch.stack(all_coverage, 0)
final_dist, s_t, c_t, attn_dist, p_gen, coverage_t = self.model.decoder(
y_t_1, s_t_1, encoder_outputs, encoder_feature,
enc_padding_mask, c_t_1, extra_zeros, enc_batch_extend_vocab,
coverage_t_1, steps)
log_probs = torch.log(final_dist)
topk_log_probs, topk_ids = torch.topk(log_probs,
config.beam_size * 2)
dec_h, dec_c = s_t
dec_h = dec_h.squeeze()
dec_c = dec_c.squeeze()
all_beams = []
num_orig_beams = 1 if steps == 0 else len(beams)
for i in range(num_orig_beams):
h = beams[i]
state_i = (dec_h[i], dec_c[i])
context_i = c_t[i]
coverage_i = (coverage_t[i] if config.is_coverage else None)
for j in range(config.beam_size *
2): # for each of the top 2*beam_size hyps:
new_beam = h.extend(token=topk_ids[i, j].item(),
log_prob=topk_log_probs[i, j].item(),
state=state_i,
context=context_i,
coverage=coverage_i)
all_beams.append(new_beam)
beams = []
for h in self.sort_beams(all_beams):
if h.latest_token == self.vocab.word2id(data.STOP_DECODING):
if steps >= config.min_dec_steps:
results.append(h)
else:
beams.append(h)
if len(beams) == config.beam_size or len(
results) == config.beam_size:
break
steps += 1
if len(results) == 0:
results = beams
beams_sorted = self.sort_beams(results)
return beams_sorted[0]
import sys
from data import Vocab
vocab_tgt = Vocab('../data/golden/vocab_tgt')
with open(sys.argv[1]) as f:
for line in f.readlines():
x = line.strip().split('|')
y = x[-1]
z = [int(t) for t in y.split()]
iszero = False
new_z = []
for w in z:
if iszero and w == 0:
continue
else:
new_z.append(w)
iszero = (w == 0)
print(' '.join([vocab_tgt.i2s(w) for w in new_z]))
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception(
"Logdir %s doesn't exist. Run in train mode to create it." %
(FLAGS.log_root))
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hps_dict = {
'mode': FLAGS.mode,
'rand_unif_init_mag': FLAGS.rand_unif_init_mag,
'trunc_norm_init_std': FLAGS.trunc_norm_init_std,
'max_grad_norm': FLAGS.max_grad_norm,
'hidden_dim': FLAGS.hidden_dim,
'emb_dim': FLAGS.emb_dim,
'batch_size': FLAGS.batch_size,
'max_dec_steps': FLAGS.max_dec_steps,
'max_enc_steps': FLAGS.max_enc_steps,
'pointer_gen': FLAGS.pointer_gen,
'lr': FLAGS.lr,
'keep_prob': FLAGS.keep_prob
}
hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
batcher = Batcher(FLAGS.data_path,
vocab,
hps,
single_pass=FLAGS.single_pass)
eval_batcher = Batcher('eval', vocab, hps, single_pass=False)
tf.set_random_seed(111) # a seed value for randomness
if hps.mode == 'train':
print("creating model...")
model = MultiRelationModel(hps, vocab)
setup_training(model, batcher, eval_batcher)
elif hps.mode == 'eval':
model = MultiRelationModel(hps, vocab)
run_eval(model, batcher)
elif hps.mode == 'decode':
# decode_model_hps = hps # This will be the hyperparameters for the decoder model
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = MultiRelationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.decode(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
parser.add_argument('--train_data', type=str)
parser.add_argument('--dev_data', type=str)
parser.add_argument('--which_ranker', type=str)
return parser.parse_args()
def update_lr(optimizer, coefficient):
for param_group in optimizer.param_groups:
param_group['lr'] = param_group['lr'] * coefficient
if __name__ == "__main__":
random.seed(19940117)
torch.manual_seed(19940117)
args = parse_config()
vocab_src = Vocab(args.vocab_src, with_SE=False)
vocab_tgt = Vocab(args.vocab_tgt, with_SE=False)
if args.which_ranker == 'ranker':
from ranker import Ranker
elif args.which_ranker == 'masker_ranker':
from masker_ranker import Ranker
model = Ranker(vocab_src, vocab_tgt, args.embed_dim, args.ff_embed_dim,
args.num_heads, args.dropout, args.num_layers)
model = model.cuda()
optimizer = torch.optim.Adam(model.parameters(), args.lr)
train_data = DataLoader(args.train_data, vocab_src, vocab_tgt,
args.train_batch_size, True)
dev_data = DataLoader(args.dev_data, vocab_src, vocab_tgt,
args.dev_batch_size, True)
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
# Loading the external information first
extra_info = {}
if os.path.exists(FLAGS.external_config):
external_params = xml_parser.parse(FLAGS.external_config, flat=False)
if 'sent2vec_params' in external_params:
sent2vec_params = external_params['sent2vec_params']
convnet_params = sent2vec_params['convnet_params']
convnet_model2load = sent2vec_params['model2load']
gamma = 0.2 if not 'gamma' in sent2vec_params else sent2vec_params[
'gamma']
my_convnet = convnet.convnet(convnet_params)
my_convnet.train_validate_test_init()
my_convnet.load_params(file2load=convnet_model2load)
fixed_vars = tf.global_variables()
fixed_vars.remove(my_convnet.embedding_matrix)
extra_info['sent2vec'] = {'gamma': gamma, 'network': my_convnet}
extra_info['fixed_vars'] = fixed_vars
if 'key_phrases' in external_params:
# TODO: phrase some parameters to import the results of key-phrase extracted or \
# parameters for online key-phrase extraction
extra_info['key_phrases'] = {}
raise NotImplementedError(
'Key phrases part has not been implemented yet')
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception(
"Logdir %s doesn't exist. Run in train mode to create it." %
(FLAGS.log_root))
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
'mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm', 'hidden_dim', 'emb_dim',
'batch_size', 'max_dec_steps', 'max_enc_steps', 'coverage',
'cov_loss_wt', 'pointer_gen'
]
hps_dict = {}
for key, val in FLAGS.__flags.iteritems(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
batcher = Batcher(FLAGS.data_path,
vocab,
hps,
single_pass=FLAGS.single_pass)
tf.set_random_seed(111) # a seed value for randomness
if hps.mode == 'train':
print "creating model..."
model = SummarizationModel(hps, vocab, extra_info)
setup_training(model, batcher)
elif hps.mode == 'eval':
model = SummarizationModel(hps, vocab, extra_info)
run_eval(model, batcher, vocab)
elif hps.mode == 'decode':
decode_model_hps = hps # This will be the hyperparameters for the decoder model
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, vocab, extra_info)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.decode(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
pp = pprint.PrettyPrinter()
pp.pprint(FLAGS.__flags)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
if FLAGS.model not in ['selector', 'rewriter', 'end2end']:
raise ValueError(
"The 'model' flag must be one of selector/rewriter/end2end")
if FLAGS.mode not in ['train', 'eval', 'evalall']:
raise ValueError("The 'mode' flag must be one of train/eval/evalall")
tf.logging.info('Starting %s in %s mode...' % (FLAGS.model, FLAGS.mode)) #
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.model,
FLAGS.exp_name) # abstractor save path
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception(
"Logdir %s doesn't exist. Run in train mode to create it." %
(FLAGS.log_root))
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in evalall mode, set batch_size = 1 or beam_size
# Reason: in evalall mode, we decode one example at a time.
# For rewriter, on each step, we have beam_size-many hypotheses in the beam,
# so we need to make a batch of these hypotheses.
if FLAGS.mode == 'evalall':
if FLAGS.model == 'selector':
FLAGS.batch_size = 1
else:
if FLAGS.decode_method == 'beam':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in evalall mode
if FLAGS.single_pass and FLAGS.mode == 'train':
raise Exception(
"The single_pass flag should not be True in train mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
'model', 'mode', 'eval_method', 'selector_loss_wt',
'inconsistent_loss', 'inconsistent_topk', 'lr', 'adagrad_init_acc',
'rand_unif_init_mag', 'trunc_norm_init_std', 'max_grad_norm',
'hidden_dim_selector', 'hidden_dim_rewriter', 'emb_dim', 'batch_size',
'max_art_len', 'max_sent_len', 'max_dec_steps', 'max_enc_steps',
'coverage', 'cov_loss_wt', 'eval_gt_rouge', 'decode_method', 'lr',
'gamma', 'eta', 'fixed_eta', 'reward_function', 'intradecoder',
'use_temporal_attention', 'rl_training', 'matrix_attention',
'pointer_gen', 'alpha', 'hard_argmax', 'greedy_scheduled_sampling',
'k', 'calculate_true_q', 'dqn_scheduled_sampling', 'dqn_sleep_time',
'E2EBackProp', 'gpu_num', 'enc_hidden_dim', 'dec_hidden_dim',
'scheduled_sampling', 'sampling_probability',
'fixed_sampling_probability', 'hard_argmax',
'greedy_scheduled_sampling', 'dqn_scheduled_sampling',
'dqn_sleep_time', 'E2EBackProp', 'ac_training'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
# for val in FLAGS:
# if val in hparam_list:
# hps_dict[val] = FLAGS[val].value
hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
batcher = Batcher(FLAGS.data_path,
vocab,
hps,
single_pass=FLAGS.single_pass)
tf.set_random_seed(111) # a seed value for randomness
vocab.LoadWordEmbedding(FLAGS.embedding, FLAGS.emb_dim)
start = time.perf_counter()
if FLAGS.model == 'selector': # extractor
print(hps.mode)
if hps.mode == 'train': # train
print("creating model...")
model = SentenceSelector(hps, vocab) # init
run_selector.setup_training(model, batcher,
vocab.getWordEmbedding())
elif hps.mode == 'eval': # evaluation
model = SentenceSelector(hps, vocab)
run_selector.run_eval(model, batcher, vocab.getWordEmbedding())
elif hps.mode == 'evalall': # test , get rouge and output
model = SentenceSelector(hps, vocab)
evaluator = SelectorEvaluator(model, batcher, vocab)
evaluator.evaluate()
elif FLAGS.model == 'rewriter': # abstractor
if hps.mode == 'train':
print("creating model...")
model = Rewriter(hps, vocab)
run_rewriter.setup_training(model, batcher,
vocab.getWordEmbedding())
elif hps.mode == 'eval':
model = Rewriter(hps, vocab)
if FLAGS.eval_method == 'loss':
vocab.LoadWordEmbedding(FLAGS.embedding, FLAGS.emb_dim)
run_rewriter.run_eval(model, batcher, vocab.getWordEmbedding())
elif FLAGS.eval_method == 'rouge':
assert FLAGS.decode_method == 'greedy'
decoder = BeamSearchDecoder(model, batcher, vocab)
run_rewriter.run_eval_rouge(decoder)
elif hps.mode == 'evalall':
decode_model_hps = hps # This will be the hyperparameters for the decoder model
if FLAGS.decode_method == 'beam':
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = Rewriter(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.evaluate(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
elif FLAGS.model == 'end2end': # end2end
if hps.mode == 'train':
print("creating model...")
select_model = SentenceSelector(hps, vocab) # extractor init
rewrite_model = Rewriter(hps, vocab) # abstractor init
end2end_model = SelectorRewriter(hps, select_model,
rewrite_model) # end2end init
run_end2end.setup_training(
end2end_model, batcher,
vocab.getWordEmbedding()) # train setting
elif hps.mode == 'eval':
select_model = SentenceSelector(hps, vocab)
rewrite_model = Rewriter(hps, vocab)
end2end_model = SelectorRewriter(hps, select_model, rewrite_model)
if FLAGS.eval_method == 'loss':
run_end2end.run_eval(end2end_model, batcher,
vocab.getWordEmbedding())
elif FLAGS.eval_method == 'rouge':
assert FLAGS.decode_method == 'greedy'
evaluator = End2EndEvaluator(end2end_model, batcher, vocab)
run_end2end.run_eval_rouge(evaluator)
elif hps.mode == 'evalall':
eval_model_hps = hps # This will be the hyperparameters for the decoder model
if FLAGS.decode_method == 'beam':
eval_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
select_model = SentenceSelector(eval_model_hps, vocab)
rewrite_model = Rewriter(eval_model_hps, vocab)
end2end_model = SelectorRewriter(hps, select_model, rewrite_model)
evaluator = End2EndEvaluator(end2end_model, batcher, vocab)
evaluator.evaluate(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
delta = time.perf_counter() - start
print("running time: {} seconds".format(delta))
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting running in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception(
"Logdir %s doesn't exist. Run in train mode to create it." %
(FLAGS.log_root))
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
tf.set_random_seed(6) # a seed value for randomness
cnn_classifier = CNN(config)
#cnn_batcher = ClaBatcher(hps_discriminator, vocab)
cnn_batcher = ClaBatcher(FLAGS, vocab)
sess_cnn, saver_cnn, train_dir_cnn = setup_training_classifier(
cnn_classifier)
run_train_cnn_classifier(cnn_classifier, cnn_batcher, 10, sess_cnn,
saver_cnn, train_dir_cnn)
#util.load_ckpt(saver_cnn, sess_cnn, ckpt_dir="train-classifier")
acc = run_test_classification(cnn_classifier, cnn_batcher, sess_cnn,
saver_cnn, str('last'))
print("the last stored cnn model acc = ", acc)
generate_confident_examples(cnn_classifier, cnn_batcher,
sess_cnn) ## train_conf
print("Start pre-training attention classification......")
model_class = Classification(FLAGS, vocab)
cla_batcher = AttenBatcher(FLAGS, vocab) # read from train_conf
sess_cls, saver_cls, train_dir_cls = setup_training_classification(
model_class)
run_pre_train_classification(model_class, cla_batcher, 10, sess_cls,
saver_cls, train_dir_cls)
#util.load_ckpt(saver_cls, sess_cls, ckpt_dir="train-classification")
acc = run_test_classification(model_class, cla_batcher, sess_cls,
saver_cls, str("final_acc"))
print("the last stored attention model acc = ", acc)
acc = run_test_classification(cnn_classifier, cla_batcher, sess_cnn,
saver_cnn, str("final_acc"))
print("the last stored classifier model acc = ", acc)
generated = Generate_training_sample(model_class, vocab, cla_batcher,
sess_cls)
print("Generating training examples......")
generated.generate_training_example("train_filtered") #wirte train
generated.generator_validation_example("valid_filtered")
model = Seq2seq_AE(FLAGS, vocab)
# Create a batcher object that will create minibatches of data
batcher = GenBatcher(vocab, FLAGS) ##read from train
sess_ge, saver_ge, train_dir_ge = setup_training_generator(model)
generated = Generated_sample(model, vocab, batcher, sess_ge)
print("Start training generator......")
run_pre_train_auto_encoder(model, batcher, 20, sess_ge, saver_ge,
train_dir_ge, generated, cnn_classifier,
sess_cnn, cla_batcher)
def main(unused_argv):
print("unused_argv: ", unused_argv)
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception(
"Logdir %s doesn't exist. Run in train mode to create it." %
(FLAGS.log_root))
print("FLAGS.vocab_size: ", FLAGS.vocab_size)
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
print("vocab size: ", vocab.size())
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
'mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm', 'hidden_dim', 'emb_dim',
'batch_size', 'max_dec_steps', 'max_enc_steps', 'coverage',
'cov_loss_wt', 'pointer_gen', 'fine_tune', 'train_size', 'subred_size',
'use_doc_vec', 'use_multi_attn', 'use_multi_pgen', 'use_multi_pvocab',
'create_ckpt'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
batcher = Batcher(FLAGS.data_path,
vocab,
hps,
single_pass=FLAGS.single_pass)
tf.set_random_seed(111) # a seed value for randomness
# return
if hps.mode.value == 'train':
print("creating model...")
model = SummarizationModel(hps, vocab)
# -------------------------------------
if hps.create_ckpt.value:
step = 0
model.build_graph()
print("get value")
pretrained_ckpt = '/home/cs224u/pointer/log/pretrained_model_tf1.2.1/train/model-238410'
reader = pywrap_tensorflow.NewCheckpointReader(pretrained_ckpt)
var_to_shape_map = reader.get_variable_to_shape_map()
value = {}
for key in var_to_shape_map:
value[key] = reader.get_tensor(key)
print("assign op")
assign_op = []
if hps.use_multi_pvocab.value:
new_key = [
"seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear_0/Bias",
"seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear_1/Bias"
]
for v in tf.trainable_variables():
key = v.name.split(":")[0]
if key in new_key:
origin_key = "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear/" + key.split(
"/")[-1]
a_op = v.assign(tf.convert_to_tensor(
value[origin_key]))
else:
a_op = v.assign(tf.convert_to_tensor(value[key]))
# if key == "seq2seq/embedding/embedding":
# a_op = v.assign(tf.convert_to_tensor(value[key]))
assign_op.append(a_op)
else:
for v in tf.trainable_variables():
key = v.name.split(":")[0]
if key == "seq2seq/embedding/embedding":
a_op = v.assign(tf.convert_to_tensor(value[key]))
assign_op.append(a_op)
# ratio = 1
# for v in tf.trainable_variables():
# key = v.name.split(":")[0]
# # embedding (50000, 128) -> (50000, 32)
# if key == "seq2seq/embedding/embedding":
# print (key)
# print (value[key].shape)
# d1 = value[key].shape[1]
# a_op = v.assign(tf.convert_to_tensor(value[key][:,:d1//ratio]))
# # kernel (384, 1024) -> (96, 256)
# # w_reduce_c (512, 256) -> (128, 64)
# elif key == "seq2seq/encoder/bidirectional_rnn/fw/lstm_cell/kernel" or \
# key == "seq2seq/encoder/bidirectional_rnn/bw/lstm_cell/kernel" or \
# key == "seq2seq/reduce_final_st/w_reduce_c" or \
# key == "seq2seq/reduce_final_st/w_reduce_h" or \
# key == "seq2seq/decoder/attention_decoder/Linear/Matrix" or \
# key == "seq2seq/decoder/attention_decoder/lstm_cell/kernel" or \
# key == "seq2seq/decoder/attention_decoder/Attention/Linear/Matrix" or \
# key == "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear/Matrix":
# print (key)
# print (value[key].shape)
# d0, d1 = value[key].shape[0], value[key].shape[1]
# a_op = v.assign(tf.convert_to_tensor(value[key][:d0//ratio, :d1//ratio]))
# # bias (1024,) -> (256,)
# elif key == "seq2seq/encoder/bidirectional_rnn/fw/lstm_cell/bias" or \
# key == "seq2seq/encoder/bidirectional_rnn/bw/lstm_cell/bias" or \
# key == "seq2seq/reduce_final_st/bias_reduce_c" or \
# key == "seq2seq/reduce_final_st/bias_reduce_h" or \
# key == "seq2seq/decoder/attention_decoder/lstm_cell/bias" or \
# key == "seq2seq/decoder/attention_decoder/v" or \
# key == "seq2seq/decoder/attention_decoder/Attention/Linear/Bias" or \
# key == "seq2seq/decoder/attention_decoder/Linear/Bias" or \
# key == "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear/Bias":
# print (key)
# print (value[key].shape)
# d0 = value[key].shape[0]
# a_op = v.assign(tf.convert_to_tensor(value[key][:d0//ratio]))
# # W_h (1, 1, 512, 512) -> (1, 1, 128, 128)
# elif key == "seq2seq/decoder/attention_decoder/W_h":
# print (key)
# print (value[key].shape)
# d2, d3 = value[key].shape[2], value[key].shape[3]
# a_op = v.assign(tf.convert_to_tensor(value[key][:,:,:d2//ratio,:d3//ratio]))
# # Matrix (1152, 1) -> (288, 1)
# elif key == "seq2seq/decoder/attention_decoder/calculate_pgen/Linear/Matrix" or \
# key == "seq2seq/output_projection/w":
# print (key)
# print (value[key].shape)
# d0 = value[key].shape[0]
# a_op = v.assign(tf.convert_to_tensor(value[key][:d0//ratio,:]))
# # Bias (1,) -> (1,)
# elif key == "seq2seq/output_projection/v" or \
# key == "seq2seq/decoder/attention_decoder/calculate_pgen/Linear/Bias":
# print (key)
# print (value[key].shape)
# a_op = v.assign(tf.convert_to_tensor(value[key]))
# # multi_attn
# if hps.use_multi_attn.value:
# if key == "seq2seq/decoder/attention_decoder/attn_0/v" or \
# key == "seq2seq/decoder/attention_decoder/attn_1/v":
# # key == "seq2seq/decoder/attention_decoder/attn_2/v":
# k = "seq2seq/decoder/attention_decoder/v"
# print (key)
# print (value[k].shape)
# d0 = value[k].shape[0]
# a_op = v.assign(tf.convert_to_tensor(value[k][:d0//ratio]))
# if key == "seq2seq/decoder/attention_decoder/Attention/Linear_0/Bias" or \
# key == "seq2seq/decoder/attention_decoder/Attention/Linear_1/Bias":
# # key == "seq2seq/decoder/attention_decoder/Attention/Linear_2/Bias":
# k = "seq2seq/decoder/attention_decoder/Attention/Linear/Bias"
# print (key)
# print (value[k].shape)
# d0 = value[k].shape[0]
# a_op = v.assign(tf.convert_to_tensor(value[k][:d0//ratio]))
# elif hps.use_multi_pgen.value:
# if key == "seq2seq/decoder/attention_decoder/Linear_0/Bias" or \
# key == "seq2seq/decoder/attention_decoder/Linear_1/Bias":
# # key == "seq2seq/decoder/attention_decoder/Linear_2/Bias":
# k = "seq2seq/decoder/attention_decoder/Linear/Bias"
# print (key)
# print (value[k].shape)
# d0 = value[k].shape[0]
# a_op = v.assign(tf.convert_to_tensor(value[k][:d0//ratio]))
# if key == "seq2seq/decoder/attention_decoder/calculate_pgen/Linear_0/Bias" or \
# key == "seq2seq/decoder/attention_decoder/calculate_pgen/Linear_1/Bias":
# # key == "seq2seq/decoder/attention_decoder/calculate_pgen/Linear_2/Bias":
# k = "seq2seq/decoder/attention_decoder/calculate_pgen/Linear/Bias"
# print (key)
# print (value[k].shape)
# a_op = v.assign(tf.convert_to_tensor(value[k]))
# elif hps.use_multi_pvocab.value:
# if key == "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear_0/Bias" or \
# key == "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear_1/Bias":
# # key == "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear_2/Bias":
# k = "seq2seq/decoder/attention_decoder/AttnOutputProjection/Linear/Bias"
# print (key)
# print (value[k].shape)
# d0 = value[k].shape[0]
# a_op = v.assign(tf.convert_to_tensor(value[k][:d0//ratio]))
# assign_op.append(a_op)
# Add an op to initialize the variables.
init_op = tf.global_variables_initializer()
# Add ops to save and restore all the variables.
saver = tf.train.Saver()
with tf.Session(config=util.get_config()) as sess:
sess.run(init_op)
# Do some work with the model.
for a_op in assign_op:
a_op.op.run()
for _ in range(0):
batch = batcher.next_batch()
results = model.run_train_step(sess, batch)
# Save the variables to disk.
if hps.use_multi_attn.value:
ckpt_tag = "multi_attn_2_attn_proj"
elif hps.use_multi_pgen.value:
ckpt_tag = "multi_attn_2_pgen_proj"
elif hps.use_multi_pvocab.value:
ckpt_tag = "big_multi_attn_2_pvocab_proj"
else:
ckpt_tag = "pointer_proj"
ckpt_to_save = '/home/cs224u/pointer/log/ckpt/' + ckpt_tag + '/model.ckpt-' + str(
step)
save_path = saver.save(sess, ckpt_to_save)
print("Model saved in path: %s" % save_path)
# -------------------------------------
else:
setup_training(model, batcher, hps)
elif hps.mode.value == 'eval':
model = SummarizationModel(hps, vocab)
run_eval(model, batcher, vocab)
elif hps.mode.value == 'decode':
decode_model_hps = hps # This will be the hyperparameters for the decoder model
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.decode(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
all_beams.append(new_beam)
beams = []
for h in self.sort_beams(all_beams):
if h.latest_token == self.vocab.word2id(data.STOP_DECODING):
if steps >= config.min_dec_steps:
results.append(h)
else:
beams.append(h)
if len(beams) == config.beam_size or len(
results) == config.beam_size:
break
steps += 1
if len(results) == 0:
results = beams
beams_sorted = self.sort_beams(results)
return beams_sorted[0]
if __name__ == '__main__':
article = "近日，一段消防员用叉子吃饭的视频在网上引起热议。原来是因为训练强度太大，半天下来，大家拿筷子的手一直在抖，甚至没法夹菜。于是，用叉子吃饭，渐渐成了上海黄浦消防车站中队饭桌上的传统。转发，向消防员致敬！"
model_path = sys.argv[1]
vocab = Vocab(config.vocab_path, config.vocab_size)
batch = build_batch_by_article(article, vocab)
beam_processor = BeamSearch(model_path, vocab)
beam_processor.decode(batch)
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting running in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
os.makedirs(FLAGS.log_root)
config = {
'kernel_sizes': [3, 4, 5],
'edim': FLAGS.emb_dim,
'n_words': FLAGS.vocab_size,
'std_dev': 0.05,
'sentence_len': FLAGS.max_enc_steps,
'n_filters': 100,
'batch_size': FLAGS.batch_size,
'trunc_norm_init_std': FLAGS.trunc_norm_init_std,
'rand_unif_init_mag': FLAGS.rand_unif_init_mag,
'max_grad_norm': FLAGS.max_grad_norm,
'num_classes': FLAGS.num_class
}
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size)
hparam_list = [
'lr', 'adagrad_init_acc', 'rand_unif_init_mag', 'trunc_norm_init_std',
'max_grad_norm', 'hidden_dim', 'emb_dim', 'batch_size',
'max_dec_steps', 'max_enc_steps', 'source_class', 'num_class',
'data_dir', 'train_file', 'test_file', 'neutral_file',
'neutral_file_filtering', 'max_epochs'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps_discriminator = namedtuple("HParams", hps_dict.keys())(**hps_dict)
tf.set_random_seed(111)
# Batcher: 데이터 준비하는 부분
train_batcher = TrainBatcher(hps_discriminator, vocab)
test_batcher = TestBatcher(hps_discriminator, vocab)
# CNN class 초기화
cnn_classifier = CNN(config)
# CNN model 초기화 (TF-level)
sess_cnn_cls, saver_cnn_cls, train_dir_cnn_cls = setup_training_cnnclassifier(
cnn_classifier)
run_train_cnn_classifier(model=cnn_classifier,
train_batcher=train_batcher,
test_batcher=test_batcher,
max_run_epoch=hps_discriminator.max_epochs,
sess=sess_cnn_cls,
saver=saver_cnn_cls,
train_dir=train_dir_cnn_cls)
neutral_batcher = NeutralBatcher(hps_discriminator, vocab)
filter_neutral_data(batcher=neutral_batcher,
model=cnn_classifier,
sess=sess_cnn_cls,
hps=hps_discriminator)
def run(args, local_rank):
""" Distributed Synchronous """
torch.manual_seed(1234)
vocab = Vocab(args.vocab, min_occur_cnt=args.min_occur_cnt, specials=[])
if (args.world_size == 1 or dist.get_rank() == 0):
print (vocab.size)
model = BIGLM(local_rank, vocab, args.embed_dim, args.ff_embed_dim, args.num_heads, args.dropout, args.layers, args.approx)
if args.start_from is not None:
ckpt = torch.load(args.start_from, map_location='cpu')
model.load_state_dict(ckpt['model'])
model = model.cuda(local_rank)
weight_decay_params = []
no_weight_decay_params = []
for name, param in model.named_parameters():
if name.endswith('bias') or 'layer_norm' in name:
no_weight_decay_params.append(param)
else:
weight_decay_params.append(param)
grouped_params = [{'params':weight_decay_params, 'weight_decay':0.01},
{'params':no_weight_decay_params, 'weight_decay':0.}]
if args.world_size > 1:
torch.manual_seed(1234 + dist.get_rank())
random.seed(5678 + dist.get_rank())
if args.fp16:
try:
from apex.optimizers import FP16_Optimizer
from apex.optimizers import FusedAdam
except ImportError:
raise ImportError("Please install apex from https://www.github.com/nvidia/apex to use fp16 training.")
optimizer = FusedAdam(grouped_params,
lr=args.lr,
betas=(0.9, 0.999),
eps =1e-6,
bias_correction=False,
max_grad_norm=1.0)
optimizer = FP16_Optimizer(optimizer, dynamic_loss_scale=True)
else:
optimizer = AdamWeightDecayOptimizer(grouped_params,
lr=args.lr, betas=(0.9, 0.999), eps=1e-6)
if args.start_from is not None:
optimizer.load_state_dict(ckpt['optimizer'])
train_data = DataLoader(vocab, args.train_data, args.batch_size, args.max_len)
batch_acm = 0
acc_acm, ntokens_acm, npairs_acm, loss_acm = 0., 0., 0., 0.
while True:
model.train()
for truth, inp, msk in train_data:
batch_acm += 1
if batch_acm <= args.warmup_steps:
update_lr(optimizer, args.lr*batch_acm/args.warmup_steps)
truth = truth.cuda(local_rank)
inp = inp.cuda(local_rank)
msk = msk.cuda(local_rank)
optimizer.zero_grad()
res, loss, acc, ntokens, npairs = model(truth, inp, msk)
loss_acm += loss.item()
acc_acm += acc
ntokens_acm += ntokens
npairs_acm += npairs
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
if args.world_size > 1:
average_gradients(model)
torch.nn.utils.clip_grad_norm_(model.parameters(), 1.0)
optimizer.step()
if (args.world_size==1 or dist.get_rank() ==0) and batch_acm%args.print_every == -1%args.print_every:
print ('batch_acm %d, loss %.3f, acc %.3f, x_acm %d'%(batch_acm, loss_acm/args.print_every, acc_acm/ntokens_acm, npairs_acm))
acc_acm, ntokens_acm, loss_acm = 0., 0., 0.
if (args.world_size==1 or dist.get_rank() ==0) and batch_acm%args.save_every == -1%args.save_every:
if not os.path.exists(args.save_dir):
os.mkdir(args.save_dir)
torch.save({'args':args, 'model':model.state_dict(), 'optimizer':optimizer.state_dict()}, '%s/epoch%d_batch_%d'%(args.save_dir, train_data.epoch_id, batch_acm))
def main(unused_argv):
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting running in %s mode...', (FLAGS.mode))
#創建字典
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size)
hparam_list = [
'mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm', 'hidden_dim', 'emb_dim',
'batch_size', 'max_dec_sen_num', 'max_dec_steps', 'max_enc_steps'
]
hps_dict = {}
for key, val in FLAGS.__flags.items():
if key in hparam_list:
hps_dict[key] = val.value # add it to the dict
hps_generator = namedtuple("HParams", hps_dict.keys())(**hps_dict)
hparam_list = [
'lr', 'adagrad_init_acc', 'rand_unif_init_mag', 'trunc_norm_init_std',
'max_grad_norm', 'hidden_dim', 'emb_dim', 'batch_size',
'max_enc_sen_num', 'max_enc_seq_len'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list:
hps_dict[key] = val.value # add it to the dict
hps_discriminator = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# # 取出最小batch size 的資料量
batcher = GenBatcher(vocab, hps_generator)
# print(batcher.train_batch[0].original_review_inputs)
# print(len(batcher.train_batch[0].original_review_inputs))
tf.set_random_seed(123)
if FLAGS.mode == 'train_generator':
# print("Start pre-training ......")
ge_model = Generator(hps_generator, vocab)
sess_ge, saver_ge, train_dir_ge = setup_training_generator(ge_model)
generated = Generated_sample(ge_model, vocab, batcher, sess_ge)
print("Start pre-training generator......")
# run_pre_train_generator(ge_model, batcher, 1000, sess_ge, saver_ge, train_dir_ge)
util.load_ckpt(saver_ge, sess_ge, ckpt_dir="train-generator")
print("finish load train-generator")
print("Generating negative examples......")
generated.generator_train_negative_example()
generated.generator_test_negative_example()
print("finish write")
elif FLAGS.mode == 'train_discriminator':
# print("Start pre-training ......")
model_dis = Discriminator(hps_discriminator, vocab)
dis_batcher = DisBatcher(hps_discriminator, vocab,
"discriminator_train/positive/*",
"discriminator_train/negative/*",
"discriminator_test/positive/*",
"discriminator_test/negative/*")
sess_dis, saver_dis, train_dir_dis = setup_training_discriminator(
model_dis)
print("Start pre-training discriminator......")
if not os.path.exists("discriminator_result"):
os.mkdir("discriminator_result")
run_pre_train_discriminator(model_dis, dis_batcher, 1000, sess_dis,
saver_dis, train_dir_dis)
elif FLAGS.mode == "adversarial_train":
generator_graph = tf.Graph()
discriminatorr_graph = tf.Graph()
print("Start adversarial-training......")
# tf.reset_default_graph()
with generator_graph.as_default():
model = Generator(hps_generator, vocab)
sess_ge, saver_ge, train_dir_ge = setup_training_generator(model)
generated = Generated_sample(model, vocab, batcher, sess_ge)
util.load_ckpt(saver_ge, sess_ge, ckpt_dir="train-generator")
print("finish load train-generator")
with discriminatorr_graph.as_default():
model_dis = Discriminator(hps_discriminator, vocab)
dis_batcher = DisBatcher(hps_discriminator, vocab,
"discriminator_train/positive/*",
"discriminator_train/negative/*",
"discriminator_test/positive/*",
"discriminator_test/negative/*")
sess_dis, saver_dis, train_dir_dis = setup_training_discriminator(
model_dis)
util.load_ckpt(saver_dis, sess_dis, ckpt_dir="train-discriminator")
print("finish load train-discriminator")
print("Start adversarial training......")
if not os.path.exists("train_sample_generated"):
os.mkdir("train_sample_generated")
if not os.path.exists("test_max_generated"):
os.mkdir("test_max_generated")
if not os.path.exists("test_sample_generated"):
os.mkdir("test_sample_generated")
# whole_decay = False
# for epoch in range(100):
# print('開始訓練')
# batches = batcher.get_batches(mode = 'train')
# for step in range(int(len(batches)/20)):
# run_train_generator(model, model_dis, sess_dis, batcher, dis_batcher, batches[step*20:(step+1)*20], sess_ge, saver_ge, train_dir_ge)
# generated.generator_sample_example(
# "train_sample_generated/" + str(epoch) + "epoch_step" + str(step) + "_temp_positive",
# "train_sample_generated/" + str(epoch) + "epoch_step" + str(step) + "_temp_negative", 20)
# tf.logging.info("test performance: ")
# tf.logging.info("epoch: "+str(epoch)+" step: "+str(step))
# print("evaluate the diversity of DP-GAN (decode based on max probability)")
# generated.generator_test_sample_example(
# "test_sample_generated/" + str(epoch) + "epoch_step" + str(step) + "_temp_positive",
# "test_sample_generated/" + str(epoch) + "epoch_step" + str(step) + "_temp_negative", 20)
# print("evaluate the diversity of DP-GAN (decode based on sampling)")
# generated.generator_test_max_example(
# "test_max_generated/" + str(epoch) + "epoch_step" + str(step) + "_temp_positive",
# "test_max_generated/" + str(epoch) + "epoch_step" + str(step) + "_temp_negative", 20)
# dis_batcher.train_queue = []
# dis_batcher.train_queue = []
# for i in range(epoch + 1):
# for j in range(step + 1):
# dis_batcher.train_queue += dis_batcher.fill_example_queue("train_sample_generated/"+str(i)+"epoch_step"+str(j)+"_temp_positive/*")
# dis_batcher.train_queue += dis_batcher.fill_example_queue("train_sample_generated/"+str(i)+"epoch_step"+str(j)+"_temp_negative/*")
# dis_batcher.train_batch = dis_batcher.create_batches(mode="train", shuffleis=True)
# whole_decay = run_train_discriminator(model_dis, 5, dis_batcher, dis_batcher.get_batches(mode="train"), sess_dis, saver_dis, train_dir_dis, whole_decay)
elif FLAGS.mode == "test_language_model":
ge_model = Generator(hps_generator, vocab)
sess_ge, saver_ge, train_dir_ge = setup_training_generator(ge_model)
# saver_ge.restore(sess_ge, "train-generator/model-31200")
util.load_ckpt(saver_ge, sess_ge, ckpt_dir="train-generator")
print("finish load train-generator")
jieba.load_userdict('dir.txt')
inputs = ''
while inputs != "close":
inputs = input("Enter your ask: ")
sentence = jieba.cut(inputs)
sentence = (" ".join(sentence))
print(sentence)
sentence = sentence.split()
enc_input = [vocab.word2id(w) for w in sentence]
enc_lens = np.array([len(enc_input)])
enc_input = np.array([enc_input])
out_sentence = ('[START]').split()
dec_batch = [vocab.word2id(w) for w in out_sentence]
#dec_batch = [2] + dec_batch
#dec_batch.append(3)
while len(dec_batch) < 40:
dec_batch.append(1)
dec_batch = np.array([dec_batch])
dec_batch = np.resize(dec_batch, (1, 1, 40))
dec_lens = np.array([len(dec_batch)])
result = ge_model.run_test_language_model(sess_ge, enc_input,
enc_lens, dec_batch,
dec_lens)
output_ids = [int(t) for t in result['generated'][0][0]][1:]
decoded_words = data.outputids2words(output_ids, vocab, None)
print("decoded_words :", decoded_words)
try:
if decoded_words[0] == '[STOPDOC]':
decoded_words = decoded_words[1:]
fst_stop_idx = decoded_words.index(
data.STOP_DECODING_DOCUMENT
) # index of the (first) [STOP] symbol
decoded_words = decoded_words[:fst_stop_idx]
except ValueError:
decoded_words = decoded_words
if decoded_words[-1] != '.' and decoded_words[
-1] != '!' and decoded_words[-1] != '?':
decoded_words.append('.')
decoded_words_all = []
decoded_output = ' '.join(decoded_words).strip() # single string
decoded_words_all.append(decoded_output)
decoded_words_all = ' '.join(decoded_words_all).strip()
decoded_words_all = decoded_words_all.replace("[UNK] ", "")
decoded_words_all = decoded_words_all.replace("[UNK]", "")
decoded_words_all = decoded_words_all.replace(" ", "")
decoded_words_all, _ = re.subn(r"(! ){2,}", "", decoded_words_all)
decoded_words_all, _ = re.subn(r"(\. ){2,}", "", decoded_words_all)
if decoded_words_all.startswith('，'):
decoded_words_all = decoded_words_all[1:]
print("The resonse : {}".format(decoded_words_all))
def reset_parameters(self):
for layer in self.layers:
nn.init.normal_(layer.weight, std=0.02)
nn.init.constant_(layer.bias[self.input_dim:], 1)
nn.init.constant_(layer.bias[:self.input_dim], 0)
def forward(self, x):
for layer in self.layers:
new_x = layer(x)
new_x, gate = new_x.chunk(2, dim=-1)
new_x = F.relu(new_x)
gate = torch.sigmoid(gate)
x = gate * x + (1 - gate) * new_x
return x
if __name__ == "__main__":
from data import Vocab, CLS, DUM, END
vocab = Vocab('../data/AMR/amr_1.0_reca/lem_vocab', 3, [CLS])
embed = AMREmbedding(vocab,
300,
pretrained_file='../data/glove.840B.300d.txt',
dump_file='../data/AMR/amr_1.0_reca/glove_lem_embed')
vocab = Vocab('../data/AMR/amr_1.0_reca/concept_vocab', 3, [DUM, END])
embed = AMREmbedding(
vocab,
300,
pretrained_file='../data/glove.840B.300d.txt',
amr=True,
dump_file='../data/AMR/amr_1.0_reca/glove_concept_embed')
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting running in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
os.makedirs(FLAGS.log_root)
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
'mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm', 'hidden_dim', 'emb_dim',
'batch_size', 'max_dec_steps', 'max_enc_steps'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps_generator = namedtuple("HParams", hps_dict.keys())(**hps_dict)
hparam_list = [
'lr', 'adagrad_init_acc', 'rand_unif_init_mag', 'trunc_norm_init_std',
'max_grad_norm', 'hidden_dim', 'emb_dim', 'batch_size', 'max_dec_steps'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps_discriminator = namedtuple("HParams", hps_dict.keys())(**hps_dict)
tf.set_random_seed(
111
) # a seed value for randomness # train-classification train-sentiment train-cnn-classificatin train-generator
if FLAGS.mode == "train-classifier":
#print("Start pre-training......")
model_class = Classification(hps_discriminator, vocab)
cla_batcher = ClaBatcher(hps_discriminator, vocab)
sess_cls, saver_cls, train_dir_cls = setup_training_classification(
model_class)
print("Start pre-training classification......")
run_pre_train_classification(model_class, cla_batcher, 1, sess_cls,
saver_cls, train_dir_cls) #10
generated = Generate_training_sample(model_class, vocab, cla_batcher,
sess_cls)
print("Generating training examples......")
generated.generate_training_example("train")
generated.generate_test_example("test")
elif FLAGS.mode == "train-sentimentor":
model_class = Classification(hps_discriminator, vocab)
cla_batcher = ClaBatcher(hps_discriminator, vocab)
sess_cls, saver_cls, train_dir_cls = setup_training_classification(
model_class)
print("Start pre_train_sentimentor......")
model_sentiment = Sentimentor(hps_generator, vocab)
sentiment_batcher = SenBatcher(hps_generator, vocab)
sess_sen, saver_sen, train_dir_sen = setup_training_sentimentor(
model_sentiment)
util.load_ckpt(saver_cls, sess_cls, ckpt_dir="train-classification")
run_pre_train_sentimentor(model_sentiment, sentiment_batcher, 1,
sess_sen, saver_sen, train_dir_sen) #1
elif FLAGS.mode == "test":
config = {
'n_epochs': 5,
'kernel_sizes': [3, 4, 5],
'dropout_rate': 0.5,
'val_split': 0.4,
'edim': 300,
'n_words': None, # Leave as none
'std_dev': 0.05,
'sentence_len': 50,
'n_filters': 100,
'batch_size': 50
}
config['n_words'] = 50000
cla_cnn_batcher = CNN_ClaBatcher(hps_discriminator, vocab)
cnn_classifier = CNN(config)
sess_cnn_cls, saver_cnn_cls, train_dir_cnn_cls = setup_training_cnnclassifier(
cnn_classifier)
#util.load_ckpt(saver_cnn_cls, sess_cnn_cls, ckpt_dir="train-cnnclassification")
run_train_cnn_classifier(cnn_classifier, cla_cnn_batcher, 1,
sess_cnn_cls, saver_cnn_cls,
train_dir_cnn_cls) #1
files = os.listdir("test-generate-transfer/")
for file_ in files:
run_test_our_method(cla_cnn_batcher, cnn_classifier, sess_cnn_cls,
"test-generate-transfer/" + file_ + "/*")
#elif FLAGS.mode == "test":
elif FLAGS.mode == "train-generator":
model_class = Classification(hps_discriminator, vocab)
cla_batcher = ClaBatcher(hps_discriminator, vocab)
sess_cls, saver_cls, train_dir_cls = setup_training_classification(
model_class)
model_sentiment = Sentimentor(hps_generator, vocab)
sentiment_batcher = SenBatcher(hps_generator, vocab)
sess_sen, saver_sen, train_dir_sen = setup_training_sentimentor(
model_sentiment)
config = {
'n_epochs': 5,
'kernel_sizes': [3, 4, 5],
'dropout_rate': 0.5,
'val_split': 0.4,
'edim': 300,
'n_words': None, # Leave as none
'std_dev': 0.05,
'sentence_len': 50,
'n_filters': 100,
'batch_size': 50
}
config['n_words'] = 50000
cla_cnn_batcher = CNN_ClaBatcher(hps_discriminator, vocab)
cnn_classifier = CNN(config)
sess_cnn_cls, saver_cnn_cls, train_dir_cnn_cls = setup_training_cnnclassifier(
cnn_classifier)
model = Generator(hps_generator, vocab)
batcher = GenBatcher(vocab, hps_generator)
sess_ge, saver_ge, train_dir_ge = setup_training_generator(model)
#util.load_ckpt(saver_cnn_cls, sess_cnn_cls, ckpt_dir="train-cnnclassification")
util.load_ckpt(saver_sen, sess_sen, ckpt_dir="train-sentimentor")
generated = Generated_sample(model, vocab, batcher, sess_ge)
print("Start pre-training generator......")
run_pre_train_generator(model, batcher, 1, sess_ge, saver_ge,
train_dir_ge, generated, cla_cnn_batcher,
cnn_classifier, sess_cnn_cls) # 4
generated.generate_test_negetive_example(
"temp_negetive",
batcher) # batcher, model_class, sess_cls, cla_batcher
generated.generate_test_positive_example("temp_positive", batcher)
#run_test_our_method(cla_cnn_batcher, cnn_classifier, sess_cnn_cls,
# "temp_negetive" + "/*")
loss_window = 0
t0 = time.time()
print("begin reinforcement learning:")
for epoch in range(30):
batches = batcher.get_batches(mode='train')
for i in range(len(batches)):
current_batch = copy.deepcopy(batches[i])
sentiment_batch = batch_sentiment_batch(
current_batch, sentiment_batcher)
result = model_sentiment.max_generator(sess_sen,
sentiment_batch)
weight = result['generated']
current_batch.weight = weight
sentiment_batch.weight = weight
cla_batch = batch_classification_batch(current_batch, batcher,
cla_batcher)
result = model_class.run_ypred_auc(sess_cls, cla_batch)
cc = SmoothingFunction()
reward_sentiment = 1 - np.abs(0.5 - result['y_pred_auc'])
reward_BLEU = []
for k in range(FLAGS.batch_size):
reward_BLEU.append(
sentence_bleu(
[current_batch.original_reviews[k].split()],
cla_batch.original_reviews[k].split(),
smoothing_function=cc.method1))
reward_BLEU = np.array(reward_BLEU)
reward_de = (2 / (1.0 / (1e-6 + reward_sentiment) + 1.0 /
(1e-6 + reward_BLEU)))
result = model.run_train_step(sess_ge, current_batch)
train_step = result[
'global_step'] # we need this to update our running average loss
loss = result['loss']
loss_window += loss
if train_step % 100 == 0:
t1 = time.time()
tf.logging.info(
'seconds for %d training generator step: %.3f ',
train_step, (t1 - t0) / 100)
t0 = time.time()
tf.logging.info('loss: %f', loss_window /
100) # print the loss to screen
loss_window = 0.0
if train_step % 10000 == 0:
generated.generate_test_negetive_example(
"test-generate-transfer/" + str(epoch) + "epoch_step" +
str(train_step) + "_temp_positive", batcher)
generated.generate_test_positive_example(
"test-generate/" + str(epoch) + "epoch_step" +
str(train_step) + "_temp_positive", batcher)
#saver_ge.save(sess, train_dir + "/model", global_step=train_step)
#run_test_our_method(cla_cnn_batcher, cnn_classifier, sess_cnn_cls,
# "test-generate-transfer/" + str(epoch) + "epoch_step" + str(
# train_step) + "_temp_positive" + "/*")
cla_batch, bleu = output_to_classification_batch(
result['generated'], current_batch, batcher, cla_batcher,
cc)
result = model_class.run_ypred_auc(sess_cls, cla_batch)
reward_result_sentiment = result['y_pred_auc']
reward_result_bleu = np.array(bleu)
reward_result = (2 / (1.0 /
(1e-6 + reward_result_sentiment) + 1.0 /
(1e-6 + reward_result_bleu)))
current_batch.score = 1 - current_batch.score
result = model.max_generator(sess_ge, current_batch)
cla_batch, bleu = output_to_classification_batch(
result['generated'], current_batch, batcher, cla_batcher,
cc)
result = model_class.run_ypred_auc(sess_cls, cla_batch)
reward_result_transfer_sentiment = result['y_pred_auc']
reward_result_transfer_bleu = np.array(bleu)
reward_result_transfer = (
2 / (1.0 /
(1e-6 + reward_result_transfer_sentiment) + 1.0 /
(1e-6 + reward_result_transfer_bleu)))
#tf.logging.info("reward_nonsentiment: "+str(reward_sentiment) +" output_original_sentiment: "+str(reward_result_sentiment)+" output_original_bleu: "+str(reward_result_bleu))
reward = reward_result_transfer #reward_de + reward_result_sentiment +
#tf.logging.info("reward_de: "+str(reward_de))
model_sentiment.run_train_step(sess_sen, sentiment_batch,
reward)
def evaluate_model(self, eval_file, gpus):
self.device = torch.device(
"cuda:" + str(gpus) if torch.cuda.is_available() else "cpu")
print('device', self.device)
test_models = []
if os.path.isdir(eval_file):
for file in os.listdir(eval_file):
fname = os.path.join(eval_file, file)
if os.path.isfile(fname):
test_models.append(fname)
model_args = torch.load(fname, map_location=self.device)['args']
else:
test_models.append(eval_file)
model_args = torch.load(eval_file,
map_location=self.device)['args']
from data import Vocab, DataLoader, STR, END, CLS, SEL, TL, rCLS
model_args = collections.namedtuple("HParams", sorted(
model_args.keys()))(**model_args)
vocabs = dict()
vocabs['concept'] = Vocab(model_args.concept_vocab, 5, [CLS])
vocabs['token'] = Vocab(model_args.token_vocab, 5, [STR, END])
vocabs['token_char'] = Vocab(model_args.token_char_vocab, 100,
[STR, END])
vocabs['concept_char'] = Vocab(model_args.concept_char_vocab, 100,
[STR, END])
vocabs['relation'] = Vocab(model_args.relation_vocab, 5,
[CLS, rCLS, SEL, TL])
lexical_mapping = LexicalMap()
if self.args.encoder_:
vocabs, lexical_mapping = self._prepare_data()
config_class, model_class, tokenizer_class = MODEL_CLASSES[
self.args.encoder_type]
bert_config = config_class.from_pretrained(self.args.lm_model, )
bert_tokenizer = tokenizer_class.from_pretrained(
self.args.lm_model)
bert_model = model_class.from_pretrained(
self.args.lm_model,
from_tf=bool(".ckpt" in self.args.lm_model),
config=self.args.lm_model,
).to(self.device)
eval_model = Reasoning_AMR_CN_DUAL(
vocabs,
model_args.concept_char_dim,
model_args.concept_dim,
model_args.cnn_filters,
model_args.char2concept_dim,
model_args.rel_dim,
model_args.rnn_hidden_size,
model_args.rnn_num_layers,
model_args.embed_dim,
model_args.bert_embed_dim,
model_args.ff_embed_dim,
model_args.num_heads,
model_args.dropout,
model_args.snt_layer,
model_args.graph_layers,
model_args.pretrained_file,
self.device,
model_args.batch_size,
model_args.lm_model,
bert_config,
bert_model,
bert_tokenizer,
model_args.bert_max_length,
model_args.n_answers,
model_args.encoder_type,
model_args.gcn_concept_dim,
model_args.gcn_hidden_dim,
model_args.gcn_output_dim,
model_args.max_conceptnet_length,
model_args.conceptnet_path,
)
else:
eval_model = ''
test_data = DataLoader(self.args,
vocabs,
lexical_mapping,
self.args.test_data,
model_args.batch_size,
for_train='Eval')
answer_tempelate = {0: 'A', 1: 'B', 2: 'C', 3: 'D', 4: 'E'}
# Evaluate!
logger.info("***** Running Evaluating *****")
logger.info(" Task: %s", self.args.task)
logger.info(" Num examples = %d", len(test_data))
logger.info(" Running Language Model = %s", model_args.lm_model)
logger.info(" Running Model = %s", model_args.encoder_type)
logger.info(" Running File = %s", eval_file)
logger.info(" Test data = %s", self.args.test_data)
for test_model in test_models:
eval_model.load_state_dict(
torch.load(test_model, map_location=self.device)['model'])
eval_model = eval_model.cuda(self.device)
eval_model.eval()
running_corrects = 0
eval_loss_sum, batch_acm = 0, 0
with open(test_model + model_args.prefix + '.csv', 'w',
newline='') as csvfile:
csvwriter = csv.writer(csvfile,
delimiter=',',
quoting=csv.QUOTE_MINIMAL)
for batch in test_data:
batch = move_to_cuda(batch, self.device)
eval_logits, eval_labels, ans_ids, = eval_model(
batch, train=False)
eval_logits_forpred = eval_logits.clone().detach()
pred_values, pred_indices = torch.max(
eval_logits_forpred, 1)
eval_labels = eval_labels.tolist()
eval_pred = pred_indices.tolist()
corrects = [
i for i, j in zip(eval_labels, eval_pred) if i == j
]
batch_acm += 1
# Statistics
running_corrects += len(corrects)
for i, pred in enumerate(eval_pred):
csvwriter.writerow([
ans_ids[i], answer_tempelate[int(pred_indices[i])]
])
print('Overall accuracy: ',
(running_corrects / len(test_data)))
class Seq2Seq(object):
def calc_running_avg_loss(self, loss, running_avg_loss, step, decay=0.99):
"""Calculate the running average loss via exponential decay.
This is used to implement early stopping w.r.t. a more smooth loss curve than the raw loss curve.
Args:
loss: loss on the most recent eval step
running_avg_loss: running_avg_loss so far
summary_writer: FileWriter object to write for tensorboard
step: training iteration step
decay: rate of exponential decay, a float between 0 and 1. Larger is smoother.
Returns:
running_avg_loss: new running average loss
"""
if running_avg_loss == 0: # on the first iteration just take the loss
running_avg_loss = loss
else:
running_avg_loss = running_avg_loss * decay + (1 - decay) * loss
running_avg_loss = min(running_avg_loss, 12) # clip
loss_sum = tf.Summary()
tag_name = 'running_avg_loss/decay=%f' % (decay)
loss_sum.value.add(tag=tag_name, simple_value=running_avg_loss)
self.summary_writer.add_summary(loss_sum, step)
tf.logging.info('running_avg_loss: %f', running_avg_loss)
return running_avg_loss
def restore_best_model(self):
"""Load bestmodel file from eval directory, add variables for adagrad, and save to train directory"""
tf.logging.info("Restoring bestmodel for training...")
# Initialize all vars in the model
sess = tf.Session(config=util.get_config())
print("Initializing all variables...")
sess.run(tf.initialize_all_variables())
# Restore the best model from eval dir
saver = tf.train.Saver([v for v in tf.all_variables() if "Adagrad" not in v.name])
print("Restoring all non-adagrad variables from best model in eval dir...")
curr_ckpt = util.load_ckpt(saver, sess, "eval")
print("Restored %s." % curr_ckpt)
# Save this model to train dir and quit
new_model_name = curr_ckpt.split("/")[-1].replace("bestmodel", "model")
new_fname = os.path.join(FLAGS.log_root, "train", new_model_name)
print("Saving model to %s..." % (new_fname))
new_saver = tf.train.Saver() # this saver saves all variables that now exist, including Adagrad variables
new_saver.save(sess, new_fname)
print("Saved.")
exit()
def restore_best_eval_model(self):
# load best evaluation loss so far
best_loss = None
best_step = None
# goes through all event files and select the best loss achieved and return it
event_files = sorted(glob('{}/eval/events*'.format(FLAGS.log_root)))
for ef in event_files:
try:
for e in tf.train.summary_iterator(ef):
for v in e.summary.value:
step = e.step
if 'running_avg_loss/decay' in v.tag:
running_avg_loss = v.simple_value
if best_loss is None or running_avg_loss < best_loss:
best_loss = running_avg_loss
best_step = step
except:
continue
tf.logging.info('resotring best loss from the current logs: {}\tstep: {}'.format(best_loss, best_step))
return best_loss
def convert_to_coverage_model(self):
"""Load non-coverage checkpoint, add initialized extra variables for coverage, and save as new checkpoint"""
tf.logging.info("converting non-coverage model to coverage model..")
# initialize an entire coverage model from scratch
sess = tf.Session(config=util.get_config())
print("initializing everything...")
sess.run(tf.global_variables_initializer())
# load all non-coverage weights from checkpoint
saver = tf.train.Saver([v for v in tf.global_variables() if "coverage" not in v.name and "Adagrad" not in v.name])
print("restoring non-coverage variables...")
curr_ckpt = util.load_ckpt(saver, sess)
print("restored.")
# save this model and quit
new_fname = curr_ckpt + '_cov_init'
print("saving model to %s..." % (new_fname))
new_saver = tf.train.Saver() # this one will save all variables that now exist
new_saver.save(sess, new_fname)
print("saved.")
exit()
def convert_to_reinforce_model(self):
"""Load non-reinforce checkpoint, add initialized extra variables for reinforce, and save as new checkpoint"""
tf.logging.info("converting non-reinforce model to reinforce model..")
# initialize an entire reinforce model from scratch
sess = tf.Session(config=util.get_config())
print("initializing everything...")
sess.run(tf.global_variables_initializer())
# load all non-reinforce weights from checkpoint
saver = tf.train.Saver([v for v in tf.global_variables() if "reinforce" not in v.name and "Adagrad" not in v.name])
print("restoring non-reinforce variables...")
curr_ckpt = util.load_ckpt(saver, sess)
print("restored.")
# save this model and quit
new_fname = curr_ckpt + '_rl_init'
print("saving model to %s..." % (new_fname))
new_saver = tf.train.Saver() # this one will save all variables that now exist
new_saver.save(sess, new_fname)
print("saved.")
exit()
def setup_training(self):
"""Does setup before starting training (run_training)"""
train_dir = os.path.join(FLAGS.log_root, "train")
if not os.path.exists(train_dir): os.makedirs(train_dir)
if FLAGS.ac_training:
dqn_train_dir = os.path.join(FLAGS.log_root, "dqn", "train")
if not os.path.exists(dqn_train_dir): os.makedirs(dqn_train_dir)
#replaybuffer_pcl_path = os.path.join(FLAGS.log_root, "replaybuffer.pcl")
#if not os.path.exists(dqn_target_train_dir): os.makedirs(dqn_target_train_dir)
self.model.build_graph() # build the graph
if FLAGS.convert_to_reinforce_model:
assert (FLAGS.rl_training or FLAGS.ac_training), "To convert your pointer model to a reinforce model, run with convert_to_reinforce_model=True and either rl_training=True or ac_training=True"
self.convert_to_reinforce_model()
if FLAGS.convert_to_coverage_model:
assert FLAGS.coverage, "To convert your non-coverage model to a coverage model, run with convert_to_coverage_model=True and coverage=True"
self.convert_to_coverage_model()
if FLAGS.restore_best_model:
self.restore_best_model()
saver = tf.train.Saver(max_to_keep=3) # keep 3 checkpoints at a time
# Loads pre-trained word-embedding. By default the model learns the embedding.
if FLAGS.embedding:
self.vocab.LoadWordEmbedding(FLAGS.embedding, FLAGS.emb_dim)
word_vector = self.vocab.getWordEmbedding()
self.sv = tf.train.Supervisor(logdir=train_dir,
is_chief=True,
saver=saver,
summary_op=None,
save_summaries_secs=60, # save summaries for tensorboard every 60 secs
save_model_secs=60, # checkpoint every 60 secs
global_step=self.model.global_step,
init_feed_dict= {self.model.embedding_place:word_vector} if FLAGS.embedding else None
)
self.summary_writer = self.sv.summary_writer
self.sess = self.sv.prepare_or_wait_for_session(config=util.get_config())
if FLAGS.ac_training:
tf.logging.info('DDQN building graph')
t1 = time.time()
# We create a separate graph for DDQN
self.dqn_graph = tf.Graph()
with self.dqn_graph.as_default():
self.dqn.build_graph() # build dqn graph
tf.logging.info('building current network took {} seconds'.format(time.time()-t1))
self.dqn_target.build_graph() # build dqn target graph
tf.logging.info('building target network took {} seconds'.format(time.time()-t1))
dqn_saver = tf.train.Saver(max_to_keep=3) # keep 3 checkpoints at a time
self.dqn_sv = tf.train.Supervisor(logdir=dqn_train_dir,
is_chief=True,
saver=dqn_saver,
summary_op=None,
save_summaries_secs=60, # save summaries for tensorboard every 60 secs
save_model_secs=60, # checkpoint every 60 secs
global_step=self.dqn.global_step,
)
self.dqn_summary_writer = self.dqn_sv.summary_writer
self.dqn_sess = self.dqn_sv.prepare_or_wait_for_session(config=util.get_config())
''' #### TODO: try loading a previously saved replay buffer
# right now this doesn't work due to running DQN on a thread
if os.path.exists(replaybuffer_pcl_path):
tf.logging.info('Loading Replay Buffer...')
try:
self.replay_buffer = pickle.load(open(replaybuffer_pcl_path, "rb"))
tf.logging.info('Replay Buffer loaded...')
except:
tf.logging.info('Couldn\'t load Replay Buffer file...')
self.replay_buffer = ReplayBuffer(self.dqn_hps)
else:
self.replay_buffer = ReplayBuffer(self.dqn_hps)
tf.logging.info("Building DDQN took {} seconds".format(time.time()-t1))
'''
self.replay_buffer = ReplayBuffer(self.dqn_hps)
tf.logging.info("Preparing or waiting for session...")
tf.logging.info("Created session.")
try:
self.run_training() # this is an infinite loop until interrupted
except (KeyboardInterrupt, SystemExit):
tf.logging.info("Caught keyboard interrupt on worker. Stopping supervisor...")
self.sv.stop()
if FLAGS.ac_training:
self.dqn_sv.stop()
def run_training(self):
"""Repeatedly runs training iterations, logging loss to screen and writing summaries"""
tf.logging.info("Starting run_training")
if FLAGS.debug: # start the tensorflow debugger
self.sess = tf_debug.LocalCLIDebugWrapperSession(self.sess)
self.sess.add_tensor_filter("has_inf_or_nan", tf_debug.has_inf_or_nan)
self.train_step = 0
if FLAGS.ac_training:
# DDQN training is done asynchronously along with model training
tf.logging.info('Starting DQN training thread...')
self.dqn_train_step = 0
self.thrd_dqn_training = Thread(target=self.dqn_training)
self.thrd_dqn_training.daemon = True
self.thrd_dqn_training.start()
watcher = Thread(target=self.watch_threads)
watcher.daemon = True
watcher.start()
# starting the main thread
tf.logging.info('Starting Seq2Seq training...')
while True: # repeats until interrupted
batch = self.batcher.next_batch()
t0=time.time()
if FLAGS.ac_training:
# For DDQN, we first collect the model output to calculate the reward and Q-estimates
# Then we fix the estimation either using our target network or using the true Q-values
# This process will usually take time and we are working on improving it.
transitions = self.model.collect_dqn_transitions(self.sess, batch, self.train_step, batch.max_art_oovs) # len(batch_size * k * max_dec_steps)
tf.logging.info('Q-values collection time: {}'.format(time.time()-t0))
# whenever we are working with the DDQN, we switch using DDQN graph rather than default graph
with self.dqn_graph.as_default():
batch_len = len(transitions)
# we use current decoder state to predict q_estimates, use_state_prime = False
b = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = False, max_art_oovs = batch.max_art_oovs)
# we also get the next decoder state to correct the estimation, use_state_prime = True
b_prime = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = True, max_art_oovs = batch.max_art_oovs)
# use current DQN to estimate values from current decoder state
dqn_results = self.dqn.run_test_steps(sess=self.dqn_sess, x= b._x, return_best_action=True)
q_estimates = dqn_results['estimates'] # shape (len(transitions), vocab_size)
dqn_best_action = dqn_results['best_action']
#dqn_q_estimate_loss = dqn_results['loss']
# use target DQN to estimate values for the next decoder state
dqn_target_results = self.dqn_target.run_test_steps(self.dqn_sess, x= b_prime._x)
q_vals_new_t = dqn_target_results['estimates'] # shape (len(transitions), vocab_size)
# we need to expand the q_estimates to match the input batch max_art_oov
# we use the q_estimate of UNK token for all the OOV tokens
q_estimates = np.concatenate([q_estimates,
np.reshape(q_estimates[:,0],[-1,1])*np.ones((len(transitions),batch.max_art_oovs))],axis=-1)
# modify Q-estimates using the result collected from current and target DQN.
# check algorithm 5 in the paper for more info: https://arxiv.org/pdf/1805.09461.pdf
for i, tr in enumerate(transitions):
if tr.done:
q_estimates[i][tr.action] = tr.reward
else:
q_estimates[i][tr.action] = tr.reward + FLAGS.gamma * q_vals_new_t[i][dqn_best_action[i]]
# use scheduled sampling to whether use true Q-values or DDQN estimation
if FLAGS.dqn_scheduled_sampling:
q_estimates = self.scheduled_sampling(batch_len, FLAGS.sampling_probability, b._y_extended, q_estimates)
if not FLAGS.calculate_true_q:
# when we are not training DDQN based on true Q-values,
# we need to update Q-values in our transitions based on the q_estimates we collected from DQN current network.
for trans, q_val in zip(transitions,q_estimates):
trans.q_values = q_val # each have the size vocab_extended
q_estimates = np.reshape(q_estimates, [FLAGS.batch_size, FLAGS.k, FLAGS.max_dec_steps, -1]) # shape (batch_size, k, max_dec_steps, vocab_size_extended)
# Once we are done with modifying Q-values, we can use them to train the DDQN model.
# In this paper, we use a priority experience buffer which always selects states with higher quality
# to train the DDQN. The following line will add batch_size * max_dec_steps experiences to the replay buffer.
# As mentioned before, the DDQN training is asynchronous. Therefore, once the related queues for DDQN training
# are full, the DDQN will start the training.
self.replay_buffer.add(transitions)
# If dqn_pretrain flag is on, it means that we use a fixed Actor to only collect experiences for
# DDQN pre-training
if FLAGS.dqn_pretrain:
tf.logging.info('RUNNNING DQN PRETRAIN: Adding data to relplay buffer only...')
continue
# if not, use the q_estimation to update the loss.
results = self.model.run_train_steps(self.sess, batch, self.train_step, q_estimates)
else:
results = self.model.run_train_steps(self.sess, batch, self.train_step)
t1=time.time()
# get the summaries and iteration number so we can write summaries to tensorboard
summaries = results['summaries'] # we will write these summaries to tensorboard using summary_writer
self.train_step = results['global_step'] # we need this to update our running average loss
tf.logging.info('seconds for training step {}: {}'.format(self.train_step, t1-t0))
printer_helper = {}
printer_helper['pgen_loss']= results['pgen_loss']
if FLAGS.coverage:
printer_helper['coverage_loss'] = results['coverage_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['rl_cov_total_loss']= results['reinforce_cov_total_loss']
else:
printer_helper['pointer_cov_total_loss'] = results['pointer_cov_total_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['shared_loss'] = results['shared_loss']
printer_helper['rl_loss'] = results['rl_loss']
printer_helper['rl_avg_logprobs'] = results['rl_avg_logprobs']
if FLAGS.rl_training:
printer_helper['sampled_r'] = np.mean(results['sampled_sentence_r_values'])
printer_helper['greedy_r'] = np.mean(results['greedy_sentence_r_values'])
printer_helper['r_diff'] = printer_helper['greedy_r'] - printer_helper['sampled_r']
if FLAGS.ac_training:
printer_helper['dqn_loss'] = np.mean(self.avg_dqn_loss) if len(self.avg_dqn_loss)>0 else 0
for (k,v) in printer_helper.items():
if not np.isfinite(v):
raise Exception("{} is not finite. Stopping.".format(k))
tf.logging.info('{}: {}\t'.format(k,v))
tf.logging.info('-------------------------------------------')
self.summary_writer.add_summary(summaries, self.train_step) # write the summaries
if self.train_step % 100 == 0: # flush the summary writer every so often
self.summary_writer.flush()
if FLAGS.ac_training:
self.dqn_summary_writer.flush()
if self.train_step > FLAGS.max_iter: break
def dqn_training(self):
""" training the DDQN network."""
try:
while True:
if self.dqn_train_step == FLAGS.dqn_pretrain_steps: raise SystemExit()
_t = time.time()
self.avg_dqn_loss = []
avg_dqn_target_loss = []
# Get a batch of size dqn_batch_size from replay buffer to train the model
dqn_batch = self.replay_buffer.next_batch()
if dqn_batch is None:
tf.logging.info('replay buffer not loaded enough yet...')
time.sleep(60)
continue
# Run train step for Current DQN model and collect the results
dqn_results = self.dqn.run_train_steps(self.dqn_sess, dqn_batch)
# Run test step for Target DQN model and collect the results and monitor the difference in loss between the two
dqn_target_results = self.dqn_target.run_test_steps(self.dqn_sess, x=dqn_batch._x, y=dqn_batch._y, return_loss=True)
self.dqn_train_step = dqn_results['global_step']
self.dqn_summary_writer.add_summary(dqn_results['summaries'], self.dqn_train_step) # write the summaries
self.avg_dqn_loss.append(dqn_results['loss'])
avg_dqn_target_loss.append(dqn_target_results['loss'])
self.dqn_train_step = self.dqn_train_step + 1
tf.logging.info('seconds for training dqn model: {}'.format(time.time()-_t))
# UPDATING TARGET DDQN NETWORK WITH CURRENT MODEL
with self.dqn_graph.as_default():
current_model_weights = self.dqn_sess.run([self.dqn.model_trainables])[0] # get weights of current model
self.dqn_target.run_update_weights(self.dqn_sess, self.dqn_train_step, current_model_weights) # update target model weights with current model weights
tf.logging.info('DQN loss at step {}: {}'.format(self.dqn_train_step, np.mean(self.avg_dqn_loss)))
tf.logging.info('DQN Target loss at step {}: {}'.format(self.dqn_train_step, np.mean(avg_dqn_target_loss)))
# sleeping is required if you want the keyboard interuption to work
time.sleep(FLAGS.dqn_sleep_time)
except (KeyboardInterrupt, SystemExit):
tf.logging.info("Caught keyboard interrupt on worker. Stopping supervisor...")
self.sv.stop()
self.dqn_sv.stop()
def watch_threads(self):
"""Watch example queue and batch queue threads and restart if dead."""
while True:
time.sleep(60)
if not self.thrd_dqn_training.is_alive(): # if the thread is dead
tf.logging.error('Found DQN Learning thread dead. Restarting.')
self.thrd_dqn_training = Thread(target=self.dqn_training)
self.thrd_dqn_training.daemon = True
self.thrd_dqn_training.start()
def run_eval(self):
"""Repeatedly runs eval iterations, logging to screen and writing summaries. Saves the model with the best loss seen so far."""
self.model.build_graph() # build the graph
saver = tf.train.Saver(max_to_keep=3) # we will keep 3 best checkpoints at a time
sess = tf.Session(config=util.get_config())
if FLAGS.embedding:
sess.run(tf.global_variables_initializer(),feed_dict={self.model.embedding_place:self.word_vector})
eval_dir = os.path.join(FLAGS.log_root, "eval") # make a subdir of the root dir for eval data
bestmodel_save_path = os.path.join(eval_dir, 'bestmodel') # this is where checkpoints of best models are saved
self.summary_writer = tf.summary.FileWriter(eval_dir)
if FLAGS.ac_training:
tf.logging.info('DDQN building graph')
t1 = time.time()
dqn_graph = tf.Graph()
with dqn_graph.as_default():
self.dqn.build_graph() # build dqn graph
tf.logging.info('building current network took {} seconds'.format(time.time()-t1))
self.dqn_target.build_graph() # build dqn target graph
tf.logging.info('building target network took {} seconds'.format(time.time()-t1))
dqn_saver = tf.train.Saver(max_to_keep=3) # keep 3 checkpoints at a time
dqn_sess = tf.Session(config=util.get_config())
dqn_train_step = 0
replay_buffer = ReplayBuffer(self.dqn_hps)
running_avg_loss = 0 # the eval job keeps a smoother, running average loss to tell it when to implement early stopping
best_loss = self.restore_best_eval_model() # will hold the best loss achieved so far
train_step = 0
while True:
_ = util.load_ckpt(saver, sess) # load a new checkpoint
if FLAGS.ac_training:
_ = util.load_dqn_ckpt(dqn_saver, dqn_sess) # load a new checkpoint
processed_batch = 0
avg_losses = []
# evaluate for 100 * batch_size before comparing the loss
# we do this due to memory constraint, best to run eval on different machines with large batch size
while processed_batch < 100*FLAGS.batch_size:
processed_batch += FLAGS.batch_size
batch = self.batcher.next_batch() # get the next batch
if FLAGS.ac_training:
t0 = time.time()
transitions = self.model.collect_dqn_transitions(sess, batch, train_step, batch.max_art_oovs) # len(batch_size * k * max_dec_steps)
tf.logging.info('Q values collection time: {}'.format(time.time()-t0))
with dqn_graph.as_default():
# if using true Q-value to train DQN network,
# we do this as the pre-training for the DQN network to get better estimates
batch_len = len(transitions)
b = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = True, max_art_oovs = batch.max_art_oovs)
b_prime = ReplayBuffer.create_batch(self.dqn_hps, transitions,len(transitions), use_state_prime = True, max_art_oovs = batch.max_art_oovs)
dqn_results = self.dqn.run_test_steps(sess=dqn_sess, x= b._x, return_best_action=True)
q_estimates = dqn_results['estimates'] # shape (len(transitions), vocab_size)
dqn_best_action = dqn_results['best_action']
tf.logging.info('running test step on dqn_target')
dqn_target_results = self.dqn_target.run_test_steps(dqn_sess, x= b_prime._x)
q_vals_new_t = dqn_target_results['estimates'] # shape (len(transitions), vocab_size)
# we need to expand the q_estimates to match the input batch max_art_oov
q_estimates = np.concatenate([q_estimates,np.zeros((len(transitions),batch.max_art_oovs))],axis=-1)
tf.logging.info('fixing the action q-estimates')
for i, tr in enumerate(transitions):
if tr.done:
q_estimates[i][tr.action] = tr.reward
else:
q_estimates[i][tr.action] = tr.reward + FLAGS.gamma * q_vals_new_t[i][dqn_best_action[i]]
if FLAGS.dqn_scheduled_sampling:
tf.logging.info('scheduled sampling on q-estimates')
q_estimates = self.scheduled_sampling(batch_len, FLAGS.sampling_probability, b._y_extended, q_estimates)
if not FLAGS.calculate_true_q:
# when we are not training DQN based on true Q-values
# we need to update Q-values in our transitions based on this q_estimates we collected from DQN current network.
for trans, q_val in zip(transitions,q_estimates):
trans.q_values = q_val # each have the size vocab_extended
q_estimates = np.reshape(q_estimates, [FLAGS.batch_size, FLAGS.k, FLAGS.max_dec_steps, -1]) # shape (batch_size, k, max_dec_steps, vocab_size_extended)
tf.logging.info('run eval step on seq2seq model.')
t0=time.time()
results = self.model.run_eval_step(sess, batch, train_step, q_estimates)
t1=time.time()
else:
tf.logging.info('run eval step on seq2seq model.')
t0=time.time()
results = self.model.run_eval_step(sess, batch, train_step)
t1=time.time()
tf.logging.info('experiment: {}'.format(FLAGS.exp_name))
tf.logging.info('processed_batch: {}, seconds for batch: {}'.format(processed_batch, t1-t0))
printer_helper = {}
loss = printer_helper['pgen_loss']= results['pgen_loss']
if FLAGS.coverage:
printer_helper['coverage_loss'] = results['coverage_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['rl_cov_total_loss']= results['reinforce_cov_total_loss']
loss = printer_helper['pointer_cov_total_loss'] = results['pointer_cov_total_loss']
if FLAGS.rl_training or FLAGS.ac_training:
printer_helper['shared_loss'] = results['shared_loss']
printer_helper['rl_loss'] = results['rl_loss']
printer_helper['rl_avg_logprobs'] = results['rl_avg_logprobs']
if FLAGS.rl_training:
printer_helper['sampled_r'] = np.mean(results['sampled_sentence_r_values'])
printer_helper['greedy_r'] = np.mean(results['greedy_sentence_r_values'])
printer_helper['r_diff'] = printer_helper['greedy_r'] - printer_helper['sampled_r']
if FLAGS.ac_training:
printer_helper['dqn_loss'] = np.mean(self.avg_dqn_loss) if len(self.avg_dqn_loss) > 0 else 0
for (k,v) in printer_helper.items():
if not np.isfinite(v):
raise Exception("{} is not finite. Stopping.".format(k))
tf.logging.info('{}: {}\t'.format(k,v))
# add summaries
summaries = results['summaries']
train_step = results['global_step']
self.summary_writer.add_summary(summaries, train_step)
# calculate running avg loss
avg_losses.append(self.calc_running_avg_loss(np.asscalar(loss), running_avg_loss, train_step))
tf.logging.info('-------------------------------------------')
running_avg_loss = np.mean(avg_losses)
tf.logging.info('==========================================')
tf.logging.info('best_loss: {}\trunning_avg_loss: {}\t'.format(best_loss, running_avg_loss))
tf.logging.info('==========================================')
# If running_avg_loss is best so far, save this checkpoint (early stopping).
# These checkpoints will appear as bestmodel-<iteration_number> in the eval dir
if best_loss is None or running_avg_loss < best_loss:
tf.logging.info('Found new best model with %.3f running_avg_loss. Saving to %s', running_avg_loss, bestmodel_save_path)
saver.save(sess, bestmodel_save_path, global_step=train_step, latest_filename='checkpoint_best')
best_loss = running_avg_loss
# flush the summary writer every so often
if train_step % 100 == 0:
self.summary_writer.flush()
#time.sleep(600) # run eval every 10 minute
def main(self, unused_argv):
if len(unused_argv) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
tf.logging.set_verbosity(tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
flags = getattr(FLAGS,"__flags")
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode=="train":
os.makedirs(FLAGS.log_root)
else:
raise Exception("Logdir %s doesn't exist. Run in train mode to create it." % (FLAGS.log_root))
fw = open('{}/config.txt'.format(FLAGS.log_root), 'w')
for k, v in flags.items():
fw.write('{}\t{}\n'.format(k, v))
fw.close()
self.vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode!='decode':
raise Exception("The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = ['mode', 'lr', 'gpu_num',
#'sampled_greedy_flag',
'gamma', 'eta',
'fixed_eta', 'reward_function', 'intradecoder',
'use_temporal_attention', 'ac_training','rl_training', 'matrix_attention', 'calculate_true_q',
'enc_hidden_dim', 'dec_hidden_dim', 'k',
'scheduled_sampling', 'sampling_probability','fixed_sampling_probability',
'alpha', 'hard_argmax', 'greedy_scheduled_sampling',
'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm',
'emb_dim', 'batch_size', 'max_dec_steps', 'max_enc_steps',
'dqn_scheduled_sampling', 'dqn_sleep_time', 'E2EBackProp',
'coverage', 'cov_loss_wt', 'pointer_gen']
hps_dict = {}
for key,val in flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
if FLAGS.ac_training:
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
self.hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# creating all the required parameters for DDQN model.
if FLAGS.ac_training:
hparam_list = ['lr', 'dqn_gpu_num',
'dqn_layers',
'dqn_replay_buffer_size',
'dqn_batch_size',
'dqn_target_update',
'dueling_net',
'dqn_polyak_averaging',
'dqn_sleep_time',
'dqn_scheduled_sampling',
'max_grad_norm']
hps_dict = {}
for key,val in flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
hps_dict.update({'vocab_size':self.vocab.size()})
self.dqn_hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
self.batcher = Batcher(FLAGS.data_path, self.vocab, self.hps, single_pass=FLAGS.single_pass, decode_after=FLAGS.decode_after)
tf.set_random_seed(111) # a seed value for randomness
if self.hps.mode == 'train':
print("creating model...")
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
# current DQN with paramters \Psi
self.dqn = DQN(self.dqn_hps,'current')
# target DQN with paramters \Psi^{\prime}
self.dqn_target = DQN(self.dqn_hps,'target')
self.setup_training()
elif self.hps.mode == 'eval':
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
self.dqn = DQN(self.dqn_hps,'current')
self.dqn_target = DQN(self.dqn_hps,'target')
self.run_eval()
elif self.hps.mode == 'decode':
decode_model_hps = self.hps # This will be the hyperparameters for the decoder model
decode_model_hps = self.hps._replace(max_dec_steps=1) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, self.vocab)
if FLAGS.ac_training:
# We need our target DDQN network for collecting Q-estimation at each decoder step.
dqn_target = DQN(self.dqn_hps,'target')
else:
dqn_target = None
decoder = BeamSearchDecoder(model, self.batcher, self.vocab, dqn = dqn_target)
decoder.decode() # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
# Scheduled sampling used for either selecting true Q-estimates or the DDQN estimation
# based on https://www.tensorflow.org/api_docs/python/tf/contrib/seq2seq/ScheduledEmbeddingTrainingHelper
def scheduled_sampling(self, batch_size, sampling_probability, true, estimate):
with variable_scope.variable_scope("ScheduledEmbedding"):
# Return -1s where we do not sample, and sample_ids elsewhere
select_sampler = bernoulli.Bernoulli(probs=sampling_probability, dtype=tf.bool)
select_sample = select_sampler.sample(sample_shape=batch_size)
sample_ids = array_ops.where(
select_sample,
tf.range(batch_size),
gen_array_ops.fill([batch_size], -1))
where_sampling = math_ops.cast(
array_ops.where(sample_ids > -1), tf.int32)
where_not_sampling = math_ops.cast(
array_ops.where(sample_ids <= -1), tf.int32)
_estimate = array_ops.gather_nd(estimate, where_sampling)
_true = array_ops.gather_nd(true, where_not_sampling)
base_shape = array_ops.shape(true)
result1 = array_ops.scatter_nd(indices=where_sampling, updates=_estimate, shape=base_shape)
result2 = array_ops.scatter_nd(indices=where_not_sampling, updates=_true, shape=base_shape)
result = result1 + result2
return result1 + result2
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
extractor = 'bert' if FLAGS.use_bert else 'lambdamart'
pretrained_dataset = FLAGS.dataset_name
if FLAGS.dataset_name == 'duc_2004':
pretrained_dataset = 'cnn_dm'
if FLAGS.singles_and_pairs == 'both':
FLAGS.exp_name = FLAGS.dataset_name + '_' + FLAGS.exp_name + extractor + '_both'
FLAGS.pretrained_path = os.path.join(FLAGS.log_root,
pretrained_dataset + '_both')
dataset_articles = FLAGS.dataset_name
else:
FLAGS.exp_name = FLAGS.dataset_name + '_' + FLAGS.exp_name + extractor + '_singles'
FLAGS.pretrained_path = os.path.join(FLAGS.log_root,
pretrained_dataset + '_singles')
dataset_articles = FLAGS.dataset_name + '_singles'
if FLAGS.upper_bound:
FLAGS.exp_name = FLAGS.exp_name + '_upperbound'
ssi_list = None # this is if we are doing the upper bound evaluation (ssi_list comes straight from the groundtruth)
else:
my_log_dir = os.path.join(
log_dir, '%s_%s_%s' %
(FLAGS.dataset_name, extractor, FLAGS.singles_and_pairs))
with open(os.path.join(my_log_dir, 'ssi.pkl'), 'rb') as f:
ssi_list = pickle.load(f)
print('Running statistics on %s' % FLAGS.exp_name)
if FLAGS.dataset_name != "":
FLAGS.data_path = os.path.join(FLAGS.data_root, FLAGS.dataset_name,
FLAGS.dataset_split + '*')
if not os.path.exists(os.path.join(
FLAGS.data_root, FLAGS.dataset_name)) or len(
os.listdir(os.path.join(FLAGS.data_root,
FLAGS.dataset_name))) == 0:
raise Exception('No TF example data found at %s.' %
os.path.join(FLAGS.data_root, FLAGS.dataset_name))
logging.set_verbosity(
logging.INFO) # choose what level of logging you want
logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.exp_name = FLAGS.exp_name if FLAGS.exp_name != '' else FLAGS.dataset_name
FLAGS.actual_log_root = FLAGS.log_root
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
print(util.bcolors.OKGREEN + "Experiment path: " + FLAGS.log_root +
util.bcolors.ENDC)
if FLAGS.dataset_name == 'duc_2004':
vocab = Vocab(FLAGS.vocab_path + '_' + 'cnn_dm',
FLAGS.vocab_size) # create a vocabulary
else:
vocab = Vocab(FLAGS.vocab_path + '_' + FLAGS.dataset_name,
FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
item for item in list(FLAGS.flag_values_dict().keys()) if item != '?'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
hps = namedtuple("HParams", list(hps_dict.keys()))(**hps_dict)
tf.set_random_seed(113) # a seed value for randomness
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
start_time = time.time()
np.random.seed(random_seed)
source_dir = os.path.join(FLAGS.data_root, dataset_articles)
source_files = sorted(glob.glob(source_dir + '/' + dataset_split + '*'))
total = len(
source_files
) * 1000 if 'cnn' in dataset_articles or 'xsum' in dataset_articles else len(
source_files)
example_generator = data.example_generator(source_dir + '/' +
dataset_split + '*',
True,
False,
should_check_valid=False)
# batcher = Batcher(None, vocab, hps, single_pass=FLAGS.single_pass)
model = SummarizationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, None, vocab)
decoder.decode_iteratively(example_generator, total, names_to_types,
ssi_list, hps)
def main(self, unused_argv):
if len(unused_argv) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
tf.logging.set_verbosity(tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
flags = getattr(FLAGS,"__flags")
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode=="train":
os.makedirs(FLAGS.log_root)
else:
raise Exception("Logdir %s doesn't exist. Run in train mode to create it." % (FLAGS.log_root))
fw = open('{}/config.txt'.format(FLAGS.log_root), 'w')
for k, v in flags.items():
fw.write('{}\t{}\n'.format(k, v))
fw.close()
self.vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode!='decode':
raise Exception("The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = ['mode', 'lr', 'gpu_num',
#'sampled_greedy_flag',
'gamma', 'eta',
'fixed_eta', 'reward_function', 'intradecoder',
'use_temporal_attention', 'ac_training','rl_training', 'matrix_attention', 'calculate_true_q',
'enc_hidden_dim', 'dec_hidden_dim', 'k',
'scheduled_sampling', 'sampling_probability','fixed_sampling_probability',
'alpha', 'hard_argmax', 'greedy_scheduled_sampling',
'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm',
'emb_dim', 'batch_size', 'max_dec_steps', 'max_enc_steps',
'dqn_scheduled_sampling', 'dqn_sleep_time', 'E2EBackProp',
'coverage', 'cov_loss_wt', 'pointer_gen']
hps_dict = {}
for key,val in flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
if FLAGS.ac_training:
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
self.hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# creating all the required parameters for DDQN model.
if FLAGS.ac_training:
hparam_list = ['lr', 'dqn_gpu_num',
'dqn_layers',
'dqn_replay_buffer_size',
'dqn_batch_size',
'dqn_target_update',
'dueling_net',
'dqn_polyak_averaging',
'dqn_sleep_time',
'dqn_scheduled_sampling',
'max_grad_norm']
hps_dict = {}
for key,val in flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val.value # add it to the dict
hps_dict.update({'dqn_input_feature_len':(FLAGS.dec_hidden_dim)})
hps_dict.update({'vocab_size':self.vocab.size()})
self.dqn_hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
self.batcher = Batcher(FLAGS.data_path, self.vocab, self.hps, single_pass=FLAGS.single_pass, decode_after=FLAGS.decode_after)
tf.set_random_seed(111) # a seed value for randomness
if self.hps.mode == 'train':
print("creating model...")
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
# current DQN with paramters \Psi
self.dqn = DQN(self.dqn_hps,'current')
# target DQN with paramters \Psi^{\prime}
self.dqn_target = DQN(self.dqn_hps,'target')
self.setup_training()
elif self.hps.mode == 'eval':
self.model = SummarizationModel(self.hps, self.vocab)
if FLAGS.ac_training:
self.dqn = DQN(self.dqn_hps,'current')
self.dqn_target = DQN(self.dqn_hps,'target')
self.run_eval()
elif self.hps.mode == 'decode':
decode_model_hps = self.hps # This will be the hyperparameters for the decoder model
decode_model_hps = self.hps._replace(max_dec_steps=1) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, self.vocab)
if FLAGS.ac_training:
# We need our target DDQN network for collecting Q-estimation at each decoder step.
dqn_target = DQN(self.dqn_hps,'target')
else:
dqn_target = None
decoder = BeamSearchDecoder(model, self.batcher, self.vocab, dqn = dqn_target)
decoder.decode() # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
def main(unused_argv):
if len(unused_argv
) != 1: # prints a message if you've entered flags incorrectly
raise Exception("Problem with flags: %s" % unused_argv)
tf.logging.set_verbosity(
tf.logging.INFO) # choose what level of logging you want
tf.logging.info('Starting seq2seq_attention in %s mode...', (FLAGS.mode))
# Change log_root to FLAGS.log_root/FLAGS.exp_name and create the dir if necessary
FLAGS.log_root = os.path.join(FLAGS.log_root, FLAGS.exp_name)
if not os.path.exists(FLAGS.log_root):
if FLAGS.mode == "train":
os.makedirs(FLAGS.log_root)
else:
raise Exception(
"Logdir %s doesn't exist. Run in train mode to create it." %
(FLAGS.log_root))
vocab = Vocab(FLAGS.vocab_path, FLAGS.vocab_size) # create a vocabulary
# If in decode mode, set batch_size = beam_size
# Reason: in decode mode, we decode one example at a time.
# On each step, we have beam_size-many hypotheses in the beam, so we need to make a batch of these hypotheses.
if FLAGS.mode == 'decode':
FLAGS.batch_size = FLAGS.beam_size
# If single_pass=True, check we're in decode mode
if FLAGS.single_pass and FLAGS.mode != 'decode':
raise Exception(
"The single_pass flag should only be True in decode mode")
# Make a namedtuple hps, containing the values of the hyperparameters that the model needs
hparam_list = [
'mode', 'lr', 'adagrad_init_acc', 'rand_unif_init_mag',
'trunc_norm_init_std', 'max_grad_norm', 'hidden_dim', 'emb_dim',
'batch_size', 'max_dec_steps', 'max_enc_steps', 'coverage',
'cov_loss_wt', 'pointer_gen', 'vocab_size'
]
hps_dict = {}
for key, val in FLAGS.__flags.items(): # for each flag
if key in hparam_list: # if it's in the list
hps_dict[key] = val # add it to the dict
hps = namedtuple("HParams", hps_dict.keys())(**hps_dict)
# Create a batcher object that will create minibatches of data
batcher = Batcher(FLAGS.data_path,
vocab,
hps,
single_pass=FLAGS.single_pass)
tf.set_random_seed(111) # a seed value for randomness
if hps.mode == 'train':
print("creating model...")
model = SummarizationModel(hps, vocab)
setup_training(model, batcher)
elif hps.mode == 'eval':
model = SummarizationModel(hps, vocab)
run_eval(model, batcher, vocab)
elif hps.mode == 'decode':
decode_model_hps = hps # This will be the hyperparameters for the decoder model
decode_model_hps = hps._replace(
max_dec_steps=1
) # The model is configured with max_dec_steps=1 because we only ever run one step of the decoder at a time (to do beam search). Note that the batcher is initialized with max_dec_steps equal to e.g. 100 because the batches need to contain the full summaries
model = SummarizationModel(decode_model_hps, vocab)
decoder = BeamSearchDecoder(model, batcher, vocab)
decoder.decode(
) # decode indefinitely (unless single_pass=True, in which case deocde the dataset exactly once)
else:
raise ValueError("The 'mode' flag must be one of train/eval/decode")
def main(args, local_rank):
logging.basicConfig(
format='%(asctime)s - %(levelname)s - %(name)s - %(message)s',
datefmt='%m/%d/%Y %H:%M:%S',
level=logging.INFO)
vocabs = dict()
vocabs['src'] = Vocab(args.src_vocab, 0, [BOS, EOS])
vocabs['tgt'] = Vocab(args.tgt_vocab, 0, [BOS, EOS])
if args.world_size == 1 or (dist.get_rank() == 0):
logger.info(args)
for name in vocabs:
logger.info("vocab %s, size %d, coverage %.3f", name,
vocabs[name].size, vocabs[name].coverage)
set_seed(19940117)
#device = torch.device('cpu')
torch.cuda.set_device(local_rank)
device = torch.device('cuda', local_rank)
if args.resume_ckpt:
model = MatchingModel.from_pretrained(vocabs, args.resume_ckpt)
else:
model = MatchingModel.from_params(vocabs, args.layers, args.embed_dim,
args.ff_embed_dim, args.num_heads,
args.dropout, args.output_dim,
args.bow)
if args.world_size > 1:
set_seed(19940117 + dist.get_rank())
model = model.to(device)
if args.resume_ckpt:
dev_data = DataLoader(vocabs,
args.dev_data,
args.dev_batch_size,
addition=args.additional_negs)
acc = validate(model, dev_data, device)
logger.info("initialize from %s, initial acc %.2f", args.resume_ckpt,
acc)
optimizer = Adam(model.parameters(),
lr=args.lr,
betas=(0.9, 0.98),
eps=1e-9)
lr_schedule = get_linear_schedule_with_warmup(optimizer, args.warmup_steps,
args.total_train_steps)
train_data = DataLoader(vocabs,
args.train_data,
args.per_gpu_train_batch_size,
worddrop=args.worddrop,
addition=args.additional_negs)
global_step, step, epoch = 0, 0, 0
tr_stat = Statistics()
logger.info("start training")
model.train()
while global_step <= args.total_train_steps:
for batch in train_data:
batch = move_to_device(batch, device)
loss, acc, bsz = model(batch['src_tokens'], batch['tgt_tokens'],
args.label_smoothing)
tr_stat.update({
'loss': loss.item() * bsz,
'nsamples': bsz,
'acc': acc * bsz
})
tr_stat.step()
loss.backward()
step += 1
if not (step % args.gradient_accumulation_steps
== -1 % args.gradient_accumulation_steps):
continue
if args.world_size > 1:
average_gradients(model)
torch.nn.utils.clip_grad_norm_(model.parameters(), 1.0)
optimizer.step()
lr_schedule.step()
optimizer.zero_grad()
global_step += 1
if args.world_size == 1 or (dist.get_rank() == 0):
if global_step % args.print_every == -1 % args.print_every:
logger.info("epoch %d, step %d, loss %.3f, acc %.3f",
epoch, global_step,
tr_stat['loss'] / tr_stat['nsamples'],
tr_stat['acc'] / tr_stat['nsamples'])
tr_stat = Statistics()
if global_step > args.warmup_steps and global_step % args.eval_every == -1 % args.eval_every:
dev_data = DataLoader(vocabs,
args.dev_data,
args.dev_batch_size,
addition=args.additional_negs)
acc = validate(model, dev_data, device)
logger.info("epoch %d, step %d, dev, dev acc %.2f", epoch,
global_step, acc)
save_path = '%s/epoch%d_batch%d_acc%.2f' % (
args.ckpt, epoch, global_step, acc)
model.save(args, save_path)
model.train()
if global_step > args.total_train_steps:
break
epoch += 1
logger.info('rank %d, finish training after %d steps', local_rank,
global_step)