def evaluate(args):
with open(os.path.join(args.records_dir, 'dev_meta.json'),
'r',
encoding='utf8') as p:
dev_total = json.load(p)['size']
dev_records_file = os.path.join(args.records_dir, 'dev.tfrecords')
parser = get_record_parser(args)
dev_dataset = get_batch_dataset(dev_records_file, parser, args)
dev_iterator = dev_dataset.make_one_shot_iterator()
session_config = tf.ConfigProto(allow_soft_placement=True)
session_config.gpu_options.allow_growth = True
sess = tf.Session(config=session_config)
model = CommentModel(args, dev_iterator)
saver = tf.train.Saver(max_to_keep=10000)
saver.restore(sess, args.eval_model)
total_loss = 0
batches_num = int(np.ceil(dev_total / args.batch_size))
for i in tqdm(range(batches_num), desc='eval'):
loss = sess.run(model.loss)
total_loss += loss
dev_loss = total_loss / batches_num
dev_ppl = np.exp(dev_loss)
print(
f'{time.asctime()} - Evaluation result -> dev_loss:{dev_loss:.3f} dev_ppl:{dev_ppl:.3f}'
)
def train_qqp_qap(config):
with open(config.word_emb_file, "r") as fh:
word_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.char_emb_file, "r") as fh:
char_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.pos_emb_file, "r") as fh:
pos_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.ner_emb_file, "r") as fh:
ner_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.label_emb_file, "r") as fh:
label_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.train_eval_file, "r") as fh:
train_eval_file = json.load(fh)
with open(config.dev_eval_file, "r") as fh:
dev_eval_file = json.load(fh)
with open(config.dev_meta, "r") as fh:
meta = json.load(fh)
with open(config.word_dictionary, "r") as fh:
word_dictionary = json.load(fh)
with open(config.char_dictionary, "r") as fh:
char_dictionary = json.load(fh)
with h5py.File(config.embedding_file, 'r') as fin:
embed_weights = fin["embedding"][...]
elmo_word_mat = np.zeros(
(embed_weights.shape[0] + 1, embed_weights.shape[1]),
dtype=np.float32)
elmo_word_mat[1:, :] = embed_weights
id2word = {word_dictionary[w]: w for w in word_dictionary}
dev_total = meta["total"]
best_bleu, best_ckpt = 0., 0
print("Building model...")
parser = get_record_parser(config)
graph_qg = tf.Graph()
graph_qqp = tf.Graph()
graph_qa = tf.Graph()
with graph_qg.as_default():
train_dataset = get_batch_dataset(config.train_record_file, parser,
config)
dev_dataset = get_dataset(config.dev_record_file, parser, config)
train_iterator = train_dataset.make_one_shot_iterator()
dev_iterator = dev_dataset.make_one_shot_iterator()
with graph_qg.as_default() as g:
model_qg = QGRLModel(config, word_mat, elmo_word_mat, label_mat,
pos_mat, ner_mat)
model_qg.build_graph()
model_qg.add_train_op()
with graph_qqp.as_default() as g:
model_qqp = QPCModel(config, dev=True, trainable=False, graph=g)
with graph_qa.as_default() as g:
model_qa = BidafQA(config,
word_mat,
char_mat,
dev=True,
trainable=False)
sess_qg = tf.Session(graph=graph_qg)
sess_qqp = tf.Session(graph=graph_qqp)
sess_qa = tf.Session(graph=graph_qa)
writer = tf.summary.FileWriter(config.output_dir)
with sess_qg.as_default():
with graph_qg.as_default():
sess_qg.run(tf.global_variables_initializer())
saver_qg = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(os.path.join(config.output_dir, "checkpoint")):
print(tf.train.latest_checkpoint(config.output_dir))
saver_qg.restore(sess_qg,
tf.train.latest_checkpoint(config.output_dir))
if os.path.exists(config.best_ckpt):
with open(config.best_ckpt, "r") as fh:
best_qg_ckpt = json.load(fh)
best_bleu, best_ckpt = float(
best_qg_ckpt["best_bleu"]), int(
best_qg_ckpt["best_ckpt"])
with sess_qqp.as_default():
with graph_qqp.as_default():
sess_qqp.run(tf.global_variables_initializer())
saver_qqp = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(config.best_ckpt_qpc):
with open(config.best_ckpt_qpc, "r") as fh:
best_qpc_ckpt = json.load(fh)
best_ckpt = int(best_qpc_ckpt["best_ckpt"])
print("{}/model_{}.ckpt".format(config.output_dir_qpc,
best_ckpt))
saver_qqp.restore(
sess_qqp,
"{}/model_{}.ckpt".format(config.output_dir_qpc,
best_ckpt))
else:
print("NO the best QPC model to load!")
exit()
with sess_qa.as_default():
with graph_qa.as_default():
model_qa.build_graph()
model_qa.add_train_op()
sess_qa.run(tf.global_variables_initializer())
saver_qa = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(config.best_ckpt_qa):
with open(config.best_ckpt_qa, "r") as fh:
best_qpc_ckpt = json.load(fh)
best_ckpt = int(best_qpc_ckpt["best_ckpt"])
print("{}/model_{}.ckpt".format(config.output_dir_qa,
best_ckpt))
saver_qa.restore(
sess_qa, "{}/model_{}.ckpt".format(config.output_dir_qa,
best_ckpt))
else:
print("NO the best QA model to load!")
exit()
global_step = max(sess_qg.run(model_qg.global_step), 1)
train_next_element = train_iterator.get_next()
for _ in tqdm(range(global_step, config.num_steps + 1)):
global_step = sess_qg.run(model_qg.global_step) + 1
para, para_unk, para_char, que, que_unk, que_char, labels, pos_tags, ner_tags, \
que_labels, que_pos_tags, que_ner_tags, y1, y2, qa_id = sess_qg.run(train_next_element)
symbols, symbols_rl = sess_qg.run(
[model_qg.symbols, model_qg.symbols_rl],
feed_dict={
model_qg.para: para,
model_qg.para_unk: para_unk,
model_qg.que: que,
model_qg.labels: labels,
model_qg.pos_tags: pos_tags,
model_qg.ner_tags: ner_tags,
model_qg.qa_id: qa_id
})
# format sample for QA
que_base, que_unk_base, que_char_base, que_rl, que_unk_rl, que_char_rl = \
format_generated_ques_for_qa(train_eval_file, qa_id, symbols, symbols_rl, config.batch_size,
config.ques_limit, config.char_limit, id2word, char_dictionary)
label = np.zeros((config.batch_size, 2), dtype=np.int32)
if global_step % 4 == 0:
# QPP reward
reward_base = sess_qqp.run(model_qqp.pos_prob,
feed_dict={
model_qqp.que1: que_unk,
model_qqp.que2: que_unk_base,
model_qqp.label: label,
model_qqp.qa_id: qa_id,
})
reward_rl = sess_qqp.run(model_qqp.pos_prob,
feed_dict={
model_qqp.que1: que_unk,
model_qqp.que2: que_unk_rl,
model_qqp.label: label,
model_qqp.qa_id: qa_id,
})
reward = [rr - rb for rr, rb in zip(reward_rl, reward_base)]
mixing_ratio = 0.99
else:
# QAP reward
base_qa_loss = sess_qa.run(model_qa.batch_loss,
feed_dict={
model_qa.para: para_unk,
model_qa.para_char: para_char,
model_qa.que: que_unk_base,
model_qa.que_char: que_char_base,
model_qa.y1: y1,
model_qa.y2: y2,
model_qa.qa_id: qa_id,
})
qa_loss = sess_qa.run(model_qa.batch_loss,
feed_dict={
model_qa.para: para_unk,
model_qa.para_char: para_char,
model_qa.que: que_unk_rl,
model_qa.que_char: que_char_rl,
model_qa.y1: y1,
model_qa.y2: y2,
model_qa.qa_id: qa_id,
})
reward_base = list(map(lambda x: np.exp(-x), list(base_qa_loss)))
reward_rl = list(map(lambda x: np.exp(-x), list(qa_loss)))
reward = list(
map(lambda x: x[0] - x[1], zip(reward_rl, reward_base)))
mixing_ratio = 0.97
# train with rl
loss_ml, _ = sess_qg.run(
[model_qg.loss_ml, model_qg.train_op],
feed_dict={
model_qg.para: para,
model_qg.para_unk: para_unk,
model_qg.labels: labels,
model_qg.pos_tags: pos_tags,
model_qg.ner_tags: ner_tags,
model_qg.que: que,
model_qg.dropout: config.dropout,
model_qg.qa_id: qa_id,
model_qg.sampled_que: que_rl,
model_qg.reward: reward,
model_qg.lamda: mixing_ratio
})
if global_step % config.period == 0:
loss_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/loss", simple_value=loss_ml),
])
writer.add_summary(loss_sum, global_step)
reward_base_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/reward_base",
simple_value=np.mean(reward_base)),
])
writer.add_summary(reward_base_sum, global_step)
reward_rl_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/reward_rl",
simple_value=np.mean(reward_rl)),
])
writer.add_summary(reward_rl_sum, global_step)
if global_step % config.checkpoint == 0:
filename = os.path.join(config.output_dir,
"model_{}.ckpt".format(global_step))
saver_qg.save(sess_qg, filename)
metrics = evaluate_batch(config,
model_qg,
config.val_num_batches,
train_eval_file,
sess_qg,
train_iterator,
id2word,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "train")
metrics = evaluate_batch(config,
model_qg,
dev_total // config.batch_size + 1,
dev_eval_file,
sess_qg,
dev_iterator,
id2word,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "dev")
bleu = metrics["bleu"]
if bleu > best_bleu:
best_bleu, best_ckpt = bleu, global_step
save(config.best_ckpt, {
"best_bleu": str(best_bleu),
"best_ckpt": str(best_ckpt)
}, config.best_ckpt)
def train_rl(config):
with open(config.word_emb_file, "r") as fh:
word_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.pos_emb_file, "r") as fh:
pos_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.ner_emb_file, "r") as fh:
ner_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.label_emb_file, "r") as fh:
label_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.train_eval_file, "r") as fh:
train_eval_file = json.load(fh)
with open(config.dev_eval_file, "r") as fh:
dev_eval_file = json.load(fh)
with open(config.dev_meta, "r") as fh:
meta = json.load(fh)
with open(config.word_dictionary, "r") as fh:
word_dictionary = json.load(fh)
with h5py.File(config.embedding_file, 'r') as fin:
embed_weights = fin["embedding"][...]
elmo_word_mat = np.zeros(
(embed_weights.shape[0] + 1, embed_weights.shape[1]),
dtype=np.float32)
elmo_word_mat[1:, :] = embed_weights
id2word = {word_dictionary[w]: w for w in word_dictionary}
best_bleu, best_ckpt = 0., 0
dev_total = meta["total"]
print("Building model...")
parser = get_record_parser(config)
graph_qg = tf.Graph()
with graph_qg.as_default():
train_dataset = get_batch_dataset(config.train_record_file, parser,
config.batch_size)
dev_dataset = get_dataset(config.dev_record_file, parser,
config.batch_size)
train_iterator = train_dataset.make_one_shot_iterator()
dev_iterator = dev_dataset.make_one_shot_iterator()
model_qg = QGRLModel(config, word_mat, elmo_word_mat, label_mat,
pos_mat, ner_mat)
model_qg.build_graph()
model_qg.add_train_op()
sess_qg = tf.Session(graph=graph_qg)
writer = tf.summary.FileWriter(config.output_dir)
with sess_qg.as_default():
with graph_qg.as_default():
sess_qg.run(tf.global_variables_initializer())
saver_qg = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(os.path.join(config.output_dir, "checkpoint")):
saver_qg.restore(sess_qg,
tf.train.latest_checkpoint(config.output_dir))
if os.path.exists(config.best_ckpt):
with open(config.best_ckpt, "r") as fh:
best_qg_ckpt = json.load(fh)
best_bleu, best_ckpt = float(
best_qg_ckpt["best_bleu"]), int(
best_qg_ckpt["best_ckpt"])
global_step = max(sess_qg.run(model_qg.global_step), 1)
train_next_element = train_iterator.get_next()
for _ in tqdm(range(global_step, config.num_steps + 1)):
global_step = sess_qg.run(model_qg.global_step) + 1
para, para_unk, para_char, que, que_unk, que_char, labels, pos_tags, ner_tags, \
que_labels, que_pos_tags, que_ner_tags, y1, y2, qa_id = sess_qg.run(train_next_element)
# get greedy search questions as baseline and sampled questions
symbols, symbols_rl = sess_qg.run(
[model_qg.symbols, model_qg.symbols_rl],
feed_dict={
model_qg.para: para,
model_qg.para_unk: para_unk,
model_qg.que: que,
model_qg.labels: labels,
model_qg.pos_tags: pos_tags,
model_qg.ner_tags: ner_tags,
model_qg.qa_id: qa_id
})
# get rewards and format sampled questions
reward, reward_rl, reward_base, que_rl = evaluate_rl(
train_eval_file,
qa_id,
symbols,
symbols_rl,
id2word,
metric=config.rl_metric)
# update model with policy gradient
loss_ml, _ = sess_qg.run(
[model_qg.loss_ml, model_qg.train_op],
feed_dict={
model_qg.para: para,
model_qg.para_unk: para_unk,
model_qg.que: que,
model_qg.labels: labels,
model_qg.pos_tags: pos_tags,
model_qg.ner_tags: ner_tags,
model_qg.dropout: config.dropout,
model_qg.qa_id: qa_id,
model_qg.sampled_que: que_rl,
model_qg.reward: reward
})
if global_step % config.period == 0:
loss_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/loss", simple_value=loss_ml),
])
writer.add_summary(loss_sum, global_step)
reward_base_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/reward_base",
simple_value=np.mean(reward_base)),
])
writer.add_summary(reward_base_sum, global_step)
reward_rl_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/reward_rl",
simple_value=np.mean(reward_rl)),
])
writer.add_summary(reward_rl_sum, global_step)
if global_step % config.checkpoint == 0:
filename = os.path.join(config.output_dir,
"model_{}.ckpt".format(global_step))
saver_qg.save(sess_qg, filename)
metrics = evaluate_batch(config,
model_qg,
config.val_num_batches,
train_eval_file,
sess_qg,
train_iterator,
id2word,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "train")
metrics = evaluate_batch(config,
model_qg,
dev_total // config.batch_size + 1,
dev_eval_file,
sess_qg,
dev_iterator,
id2word,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "dev")
bleu = metrics["bleu"]
if bleu > best_bleu:
best_bleu, best_ckpt = bleu, global_step
save(config.best_ckpt, {
"best_bleu": str(best_bleu),
"best_ckpt": str(best_ckpt)
}, config.best_ckpt)
def test(config):
with open(config.word_emb_file, "r") as fh:
word_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.pos_emb_file, "r") as fh:
pos_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.ner_emb_file, "r") as fh:
ner_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.label_emb_file, "r") as fh:
label_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.test_eval_file, "r") as fh:
eval_file = json.load(fh)
with open(config.test_meta, "r") as fh:
meta = json.load(fh)
with open(config.word_dictionary, "r") as fh:
word_dictionary = json.load(fh)
with h5py.File(config.embedding_file, 'r') as fin:
embed_weights = fin["embedding"][...]
elmo_word_mat = np.zeros(
(embed_weights.shape[0] + 1, embed_weights.shape[1]),
dtype=np.float32)
elmo_word_mat[1:, :] = embed_weights
id2word = {word_dictionary[w]: w for w in word_dictionary}
total = meta["total"]
print(total)
graph = tf.Graph()
print("Loading model...")
with graph.as_default() as g:
test_iterator = get_dataset(
config.test_record_file, get_record_parser(config, is_test=True),
config.test_batch_size).make_one_shot_iterator()
model = QGModel(config,
word_mat,
elmo_word_mat,
label_mat,
pos_mat,
ner_mat,
trainable=False)
model.build_graph()
model.add_train_op()
sess_config = tf.ConfigProto(allow_soft_placement=True)
sess_config.gpu_options.allow_growth = True
if os.path.exists(config.best_ckpt):
with open(config.best_ckpt, "r") as fh:
best_ckpt = json.load(fh)
checkpoint_to_test = int(best_ckpt["best_ckpt"])
else:
print("No Best!")
exit()
with tf.Session(config=sess_config) as sess:
if config.diverse_beam:
filename = "{}/diverse{}_beam{}".format(
config.output_dir, config.diverse_rate, config.beam_size)
elif config.sample:
filename = "{}/temperature{}_sample{}".format(
config.output_dir, config.temperature, config.sample_size)
else:
filename = "{}/beam{}".format(config.output_dir,
config.beam_size)
writer = tf.summary.FileWriter(filename)
checkpoint = "{}/model_{}.ckpt".format(config.output_dir,
checkpoint_to_test)
print(checkpoint)
sess.run(tf.global_variables_initializer())
saver = tf.train.Saver(var_list=[
p for p in tf.global_variables() if "word_mat" not in p.name
])
saver.restore(sess, checkpoint)
global_step = sess.run(model.global_step)
metrics = evaluate_batch(config, model,
total // config.test_batch_size + 1,
eval_file, sess, test_iterator, id2word)
print(metrics)
write_metrics(metrics, writer, global_step, "test")
def train(config):
with open(config.word_emb_file, "r") as fh:
word_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.pos_emb_file, "r") as fh:
pos_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.ner_emb_file, "r") as fh:
ner_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.label_emb_file, "r") as fh:
label_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.train_eval_file, "r") as fh:
train_eval_file = json.load(fh)
with open(config.dev_eval_file, "r") as fh:
dev_eval_file = json.load(fh)
with open(config.dev_meta, "r") as fh:
meta = json.load(fh)
with open(config.word_dictionary, "r") as fh:
word_dictionary = json.load(fh)
with h5py.File(config.embedding_file, 'r') as fin:
embed_weights = fin["embedding"][...]
elmo_word_mat = np.zeros(
(embed_weights.shape[0] + 1, embed_weights.shape[1]),
dtype=np.float32)
elmo_word_mat[1:, :] = embed_weights
id2word = {word_dictionary[w]: w for w in word_dictionary}
dev_total = meta["total"]
print("Building model...")
parser = get_record_parser(config)
graph = tf.Graph()
best_bleu, best_ckpt = 0., 0
with graph.as_default() as g:
train_dataset = get_batch_dataset(config.train_record_file, parser,
config.batch_size)
dev_dataset = get_dataset(config.dev_record_file, parser,
config.batch_size)
train_iterator = train_dataset.make_one_shot_iterator()
dev_iterator = dev_dataset.make_one_shot_iterator()
model = QGModel(config, word_mat, elmo_word_mat, label_mat, pos_mat,
ner_mat)
model.build_graph()
model.add_train_op()
sess_config = tf.ConfigProto(allow_soft_placement=True)
sess_config.gpu_options.allow_growth = True
with tf.Session(config=sess_config) as sess:
writer = tf.summary.FileWriter(config.output_dir)
sess.run(tf.global_variables_initializer())
saver = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(os.path.join(config.output_dir, "checkpoint")):
saver.restore(sess,
tf.train.latest_checkpoint(config.output_dir))
if os.path.exists(config.best_ckpt):
with open(config.best_ckpt, "r") as fh:
best_qg_ckpt = json.load(fh)
best_bleu, best_ckpt = float(
best_qg_ckpt["best_bleu"]), int(
best_qg_ckpt["best_ckpt"])
global_step = max(sess.run(model.global_step), 1)
train_next_element = train_iterator.get_next()
for _ in tqdm(range(global_step, config.num_steps + 1)):
global_step = sess.run(model.global_step) + 1
para, para_unk, para_char, que, que_unk, que_char, labels, pos_tags, ner_tags, \
que_labels, que_pos_tags, que_ner_tags, y1, y2, qa_id = sess.run(train_next_element)
loss, _ = sess.run(
[model.loss, model.train_op],
feed_dict={
model.para: para,
model.para_unk: para_unk,
model.que: que,
model.labels: labels,
model.pos_tags: pos_tags,
model.ner_tags: ner_tags,
model.dropout: config.dropout,
model.qa_id: qa_id,
})
if global_step % config.period == 0:
loss_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/loss", simple_value=loss),
])
writer.add_summary(loss_sum, global_step)
if global_step % config.checkpoint == 0:
filename = os.path.join(
config.output_dir, "model_{}.ckpt".format(global_step))
saver.save(sess, filename)
metrics = evaluate_batch(config,
model,
config.val_num_batches,
train_eval_file,
sess,
train_iterator,
id2word,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "train")
metrics = evaluate_batch(config,
model,
dev_total // config.batch_size +
1,
dev_eval_file,
sess,
dev_iterator,
id2word,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "dev")
bleu = metrics["bleu"]
if bleu > best_bleu:
best_bleu, best_ckpt = bleu, global_step
save(
config.best_ckpt, {
"best_bleu": str(best_bleu),
"best_ckpt": str(best_ckpt)
}, config.best_ckpt)
def train(args):
output_dir = args.output
log_dir = args.log_dir if args.log_dir else os.path.join(output_dir, 'log')
model_dir = os.path.join(output_dir, 'model')
records_dir = args.records_dir if not args.data_dir else os.path.join(
args.data_dir, args.records_dir)
result_dir = os.path.join(output_dir, 'result')
for dir in [output_dir, log_dir, model_dir, result_dir]:
if not os.path.exists(dir):
os.makedirs(dir)
# save the args info to ouptut dir.
with open(os.path.join(output_dir, 'args.json'), 'w') as p:
json.dump(vars(args), p, indent=2)
# load meta info
with open(os.path.join(records_dir, 'train_meta.json'),
'r',
encoding='utf8') as p:
train_total = json.load(p)['size']
batch_num_per_epoch = int(np.ceil(train_total / args.batch_size))
print(f'{time.asctime()} - batch num per epoch: {batch_num_per_epoch}')
with open(os.path.join(records_dir, 'dev_meta.json'), 'r',
encoding='utf8') as p:
dev_total = json.load(p)['size']
train_records_file = os.path.join(records_dir, 'train.tfrecords')
dev_records_file = os.path.join(records_dir, 'dev.tfrecords')
with tf.Graph().as_default() as graph, tf.device('/gpu:0'):
parser = get_record_parser(args)
train_dataset = get_batch_dataset(train_records_file, parser, args)
dev_dataset = get_batch_dataset(dev_records_file, parser, args)
handle = tf.placeholder(tf.string, shape=[])
iterator = tf.data.Iterator.from_string_handle(
handle, train_dataset.output_types, train_dataset.output_shapes)
train_iterator = train_dataset.make_one_shot_iterator()
dev_iterator = dev_dataset.make_one_shot_iterator()
model = CommentModel(args, iterator)
session_config = tf.ConfigProto(allow_soft_placement=True)
session_config.gpu_options.allow_growth = True
sess = tf.Session(config=session_config)
# sess = tf_debug.LocalCLIDebugWrapperSession(sess)
# sess.add_tensor_filter("has_inf_or_nan", tf_debug.has_inf_or_nan)
writer = tf.summary.FileWriter(log_dir)
best_ppl = tf.Variable(300,
trainable=False,
name='best_ppl',
dtype=tf.float32)
saver = tf.train.Saver(max_to_keep=10000)
if args.restore:
model_file = args.restore_model or tf.train.latest_checkpoint(
model_dir)
print(f'{time.asctime()} - Restore model from {model_file}..')
var_list = [
_[0] for _ in checkpoint_utils.list_variables(model_file)
]
saved_vars = [
_ for _ in tf.global_variables()
if _.name.split(':')[0] in var_list
]
res_saver = tf.train.Saver(saved_vars)
res_saver.restore(sess, model_file)
left_vars = [
_ for _ in tf.global_variables()
if _.name.split(':')[0] not in var_list
]
sess.run(tf.initialize_variables(left_vars))
print(
f'{time.asctime()} - Restore {len(var_list)} vars and initialize {len(left_vars)} vars.'
)
print(left_vars)
else:
print(f'{time.asctime()} - Initialize model..')
sess.run(tf.global_variables_initializer())
# sess = tf_debug.LocalCLIDebugWrapperSession(sess=sess)
train_handle = sess.run(train_iterator.string_handle())
dev_handle = sess.run(dev_iterator.string_handle())
sess.run(tf.assign(model.is_train, tf.constant(True,
dtype=tf.bool))) #tmp
patience = 0
lr = sess.run(model.lr)
b_ppl = sess.run(best_ppl)
print(f'{time.asctime()} - lr: {lr:.3f} best_ppl:{b_ppl:.3f}')
t0 = datetime.now()
while True:
global_step = sess.run(model.global_step) + 1
epoch = int(np.ceil(global_step / batch_num_per_epoch))
loss, loss_gen, ppl, train_op, merge_sum, target, check_1 = sess.run(
[
model.loss, model.loss_gen, model.ppl, model._train_op,
model._summaries, model.target, model.check_dec_outputs
],
feed_dict={handle: train_handle})
ela_time = str(datetime.now() - t0).split('.')[0]
print(
(f'{time.asctime()} - step/epoch:{global_step}/{epoch:<3d} '
f'gen_loss:{loss_gen:<3.3f} '
f'ppl:{ppl:<4.3f} '
f'elapsed:{ela_time}\r'),
end='')
if global_step % args.period == 0:
writer.add_summary(merge_sum, global_step)
writer.flush()
if global_step % args.checkpoint == 0:
model_file = os.path.join(model_dir, 'model')
saver.save(sess, model_file, global_step=global_step)
# if global_step % batch_num_per_epoch== 0:
if global_step % args.checkpoint == 0 and not args.no_eval:
sess.run(
tf.assign(model.is_train, tf.constant(False,
dtype=tf.bool)))
metrics, summ = evaluate_batch(model,
dev_total // args.batch_size,
sess, handle, dev_handle,
iterator)
sess.run(
tf.assign(model.is_train, tf.constant(True,
dtype=tf.bool)))
for s in summ:
writer.add_summary(s, global_step)
dev_ppl = metrics['ppl']
dev_gen_loss = metrics['gen_loss']
tqdm.write(
f'{time.asctime()} - Evaluate after steps:{global_step}, '
f' gen_loss:{dev_gen_loss:.4f}, ppl:{dev_ppl:.3f}')
if dev_ppl < b_ppl:
sess.run(tf.assign(best_ppl, dev_ppl))
saver.save(sess, save_path=os.path.join(model_dir, 'best'))
tqdm.write(
f'{time.asctime()} - the ppl is lower than current best ppl so saved the model.'
)
patience = 0
else:
patience += 1
if patience >= args.patience:
lr = lr / 2
sess.run(
tf.assign(model.lr, tf.constant(lr, dtype=tf.float32)))
patience = 0
tqdm.write(
f'{time.asctime()} - The lr is decayed form {lr*2} to {lr}.'
)
def debug(args):
from utils import get_record_parser, get_batch_dataset
import tensorflow as tf
# parser = get_record_parser(args)
# dataset = get_batch_dataset('data/records/dev.tfrecords', parser, args)
# iterator = dataset.make_one_shot_iterator()
# sess = tf.Session()
# while True:
# print(sess.run(iterator.get_next()))
# break
# vocab = Vocab(args.vocab, args.vocab_size)
# test_file = os.path.join(args.data, 'news_test.data')
# batcher = TestBatcher(args, vocab, test_file).batcher()
# for b in batcher:
# pass
parser = get_record_parser(args)
dataset = get_batch_dataset('data/records/dev.tfrecords', parser, args)
handle = tf.placeholder(tf.string, shape=[])
iterator = tf.data.Iterator.from_string_handle(handle,
dataset.output_types,
dataset.output_shapes)
train_iterator = dataset.make_one_shot_iterator()
model = CommentModel(args, iterator)
session_config = tf.ConfigProto(allow_soft_placement=True)
session_config.gpu_options.allow_growth = True
sess = tf.Session(config=session_config)
sess.run(tf.global_variables_initializer())
train_handle = sess.run(train_iterator.string_handle())
sess.run(tf.assign(model.is_train, tf.constant(True, dtype=tf.bool)))
get_results = {
'description': model.description,
'description_sen': model.description_sen,
'description_off': model.description_off,
'description_len': model.description_len,
'description_mask': model.description_mask,
'query': model.query,
'query_len': model.query_len,
'query_mask': model.query_mask,
'response': model.response,
'response_len': model.response_len,
'response_mask': model.response_mask,
'target': model.target,
'target_len': model.target_len,
'target_mask': model.target_mask,
# 'x': model.x,
# 'y': model.y,
# 'spans': model.span_seq,
# 'span_num': model.span_num,
# 'span_mask': model.span_mask
}
while True:
results = sess.run(get_results, feed_dict={handle: train_handle})
results = {k: v.tolist() for k, v in results.items()}
from pprint import pprint
if results['loss'] > 100000:
pprint(results['loss'], width=1000)
pprint(results['target'], width=1000)
pprint(results['target_mask'], width=1000)
def test(config):
with open(config.word_emb_file, "rb") as fh:
word_mat = np.array(pkl.load(fh), dtype=np.float32)
with open(config.pos_emb_file, "r") as fh:
pos_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.ner_emb_file, "r") as fh:
ner_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.label_emb_file, "r") as fh:
label_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.word_dictionary, "r") as fh:
word_dictionary = json.load(fh)
with open(config.test_eval_file, "r") as fh:
test_eval_file = json.load(fh)
with open(config.test_meta, "r") as fh:
meta = json.load(fh)
with open(config.map_to_orig, "rb") as fh:
map_to_orig = pkl.load(fh)
id2word = {word_dictionary[w]: w for w in word_dictionary}
test_total = meta["total"]
best_bleu, best_ckpt = 0., 0
print("Building model...")
parser = get_record_parser(config)
graph_para = tf.Graph()
graph_qg = tf.Graph()
with graph_para.as_default() as g:
test_dataset = get_dataset(config.test_record_file, parser,
config.batch_size)
test_iterator = test_dataset.make_one_shot_iterator()
model_para = BertEmb(config, config.para_limit + 2, graph=g)
with graph_qg.as_default() as g:
model_qg = QGModel(config,
word_mat,
label_mat,
pos_mat,
ner_mat,
trainable=False)
model_qg.build_graph()
model_qg.add_train_op()
sess_para = tf.Session(graph=graph_para)
sess_qg = tf.Session(graph=graph_qg)
with sess_para.as_default():
with graph_para.as_default():
print("init from pretrained bert..")
tvars = tf.trainable_variables()
(assignment_map, initialized_variable_names) = \
modeling.get_assignment_map_from_checkpoint(tvars, config.init_checkpoint)
tf.train.init_from_checkpoint(config.init_checkpoint,
assignment_map)
sess_para.run(tf.global_variables_initializer())
with sess_qg.as_default():
with graph_qg.as_default():
sess_qg.run(tf.global_variables_initializer())
saver_qg = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(config.best_ckpt):
with open(config.best_ckpt, "r") as fh:
best_qg_ckpt = json.load(fh)
best_bleu, best_ckpt = float(
best_qg_ckpt["best_bleu"]), int(
best_qg_ckpt["best_ckpt"])
print("best_bleu:{}, best_ckpt:{}".format(
best_bleu, best_ckpt))
else:
print("No best checkpoint!")
exit()
checkpoint = "{}/model_{}.ckpt".format(config.output_dir,
best_ckpt)
print(checkpoint)
saver_qg.restore(sess_qg, checkpoint)
writer = tf.summary.FileWriter(config.output_dir)
metrics = evaluate_batch(config,
model_para,
model_qg,
sess_para,
sess_qg,
test_total // config.batch_size + 1,
test_eval_file,
test_iterator,
id2word,
map_to_orig,
evaluate_func=evaluate)
print(metrics)
write_metrics(metrics, writer, best_ckpt, "test")
def train(config):
with open(config.word_emb_file, "rb") as fh:
word_mat = np.array(pkl.load(fh), dtype=np.float32)
with open(config.pos_emb_file, "r") as fh:
pos_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.ner_emb_file, "r") as fh:
ner_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.label_emb_file, "r") as fh:
label_mat = np.array(json.load(fh), dtype=np.float32)
with open(config.word_dictionary, "r") as fh:
word_dictionary = json.load(fh)
with open(config.train_eval_file, "r") as fh:
train_eval_file = json.load(fh)
with open(config.dev_eval_file, "r") as fh:
dev_eval_file = json.load(fh)
with open(config.dev_meta, "r") as fh:
meta = json.load(fh)
with open(config.map_to_orig, "rb") as fh:
map_to_orig = pkl.load(fh)
id2word = {word_dictionary[w]: w for w in word_dictionary}
dev_total = meta["total"]
best_bleu, best_ckpt = 0., 0
print("Building model...")
parser = get_record_parser(config)
graph_para = tf.Graph()
graph_qg = tf.Graph()
with graph_para.as_default() as g:
train_dataset = get_batch_dataset(config.train_record_file, parser,
config.batch_size)
train_iterator = train_dataset.make_one_shot_iterator()
dev_dataset = get_dataset(config.dev_record_file, parser,
config.batch_size)
dev_iterator = dev_dataset.make_one_shot_iterator()
model_para = BertEmb(config, config.para_limit + 2, graph=g)
with graph_qg.as_default() as g:
model_qg = QGModel(config, word_mat, label_mat, pos_mat, ner_mat)
model_qg.build_graph()
model_qg.add_train_op()
sess_para = tf.Session(graph=graph_para)
sess_qg = tf.Session(graph=graph_qg)
with sess_para.as_default():
with graph_para.as_default():
print("init from pretrained bert..")
tvars = tf.trainable_variables()
(assignment_map, initialized_variable_names) = \
modeling.get_assignment_map_from_checkpoint(tvars, config.init_checkpoint)
tf.train.init_from_checkpoint(config.init_checkpoint,
assignment_map)
sess_para.run(tf.global_variables_initializer())
with sess_qg.as_default():
with graph_qg.as_default():
sess_qg.run(tf.global_variables_initializer())
saver_qg = tf.train.Saver(max_to_keep=1000,
var_list=[
p for p in tf.global_variables()
if "word_mat" not in p.name
])
if os.path.exists(os.path.join(config.output_dir, "checkpoint")):
print(tf.train.latest_checkpoint(config.output_dir))
saver_qg.restore(sess_qg,
tf.train.latest_checkpoint(config.output_dir))
if os.path.exists(config.best_ckpt):
with open(config.best_ckpt, "r") as fh:
best_qg_ckpt = json.load(fh)
best_bleu, best_ckpt = float(
best_qg_ckpt["best_bleu"]), int(
best_qg_ckpt["best_ckpt"])
print("best_bleu:{}, best_ckpt:{}".format(
best_bleu, best_ckpt))
writer = tf.summary.FileWriter(config.output_dir)
global_step = max(sess_qg.run(model_qg.global_step), 1)
train_next_element = train_iterator.get_next()
for _ in tqdm(range(global_step, config.num_steps + 1)):
global_step = sess_qg.run(model_qg.global_step) + 1
para, para_unk, ques, labels, pos_tags, ner_tags, qa_id = sess_para.run(
train_next_element)
para_emb = sess_para.run(model_para.bert_emb,
feed_dict={model_para.input_ids: para_unk})
loss, _ = sess_qg.run(
[model_qg.loss, model_qg.train_op],
feed_dict={
model_qg.para: para,
model_qg.bert_para: para_emb,
model_qg.que: ques,
model_qg.labels: labels,
model_qg.pos_tags: pos_tags,
model_qg.ner_tags: ner_tags,
model_qg.dropout: config.dropout,
model_qg.qa_id: qa_id
})
if global_step % config.period == 0:
loss_sum = tf.Summary(value=[
tf.Summary.Value(tag="model/loss", simple_value=loss),
])
writer.add_summary(loss_sum, global_step)
if global_step % config.checkpoint == 0:
filename = os.path.join(config.output_dir,
"model_{}.ckpt".format(global_step))
saver_qg.save(sess_qg, filename)
metrics = evaluate_batch(config,
model_para,
model_qg,
sess_para,
sess_qg,
config.val_num_batches,
train_eval_file,
train_iterator,
id2word,
map_to_orig,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "train")
metrics = evaluate_batch(config,
model_para,
model_qg,
sess_para,
sess_qg,
dev_total // config.batch_size + 1,
dev_eval_file,
dev_iterator,
id2word,
map_to_orig,
evaluate_func=evaluate_simple)
write_metrics(metrics, writer, global_step, "dev")
bleu = metrics["bleu"]
if bleu > best_bleu:
best_bleu, best_ckpt = bleu, global_step
save(config.best_ckpt, {
"best_bleu": str(best_bleu),
"best_ckpt": str(best_ckpt)
}, config.best_ckpt)
