def __init__(self, config, args):
self.config = config
for k, v in list(args.__dict__.items()):
setattr(self.config, k, v)
setattr(self.config, 'save_dir', '{}_log'.format(self.config.dataset))
disp_str = ''
for attr in sorted(dir(self.config), key=lambda x: len(x)):
if not attr.startswith('__'):
disp_str += '{} : {}\n'.format(attr, getattr(self.config, attr))
sys.stdout.write(disp_str)
sys.stdout.flush()
self.labeled_loader, self.unlabeled_loader, self.unlabeled_loader2, self.dev_loader, self.special_set = data.get_cifar_loaders(config)
self.dis = model.Discriminative(config).cuda()
self.gen = model.Generator(image_size=config.image_size, noise_size=config.noise_size).cuda()
self.enc = model.Encoder(config.image_size, noise_size=config.noise_size, output_params=True).cuda()
self.dis_optimizer = optim.Adam(self.dis.parameters(), lr=config.dis_lr, betas=(0.5, 0.999))
self.gen_optimizer = optim.Adam(self.gen.parameters(), lr=config.gen_lr, betas=(0.0, 0.999))
self.enc_optimizer = optim.Adam(self.enc.parameters(), lr=config.enc_lr, betas=(0.0, 0.999))
self.d_criterion = nn.CrossEntropyLoss()
if not os.path.exists(self.config.save_dir):
os.makedirs(self.config.save_dir)
log_path = os.path.join(self.config.save_dir, '{}.FM+VI.{}.txt'.format(self.config.dataset, self.config.suffix))
self.logger = open(log_path, 'wb')
self.logger.write(disp_str)
print(self.dis)
def get_model(train_method, config):
logger.info('Building model --------------------------------------')
if is_train and is_restore:
if config.train_method == TrainMethod.RL_METHOD:
model_filename = build_rl_init_model_filename()
else:
model_name = 'model-{}'.format(config.restore_epoch)
model_filename = os.path.join(config.runner_path, model_name)
logger.info('Parameter init from: %s' % model_filename)
else:
logger.info('Parameter init Randomly')
embedding_table = model.get_embedding_table(config)
encoder = model.Encoder(config=config,
max_sentence_length=config.max_sentence_length,
embedding_table=embedding_table)
encoder.set_cell(name=config.cell_name, num_units=config.encoder_num_units)
encoder.build()
relation_decoder = model.RelationDecoder(encoder=encoder,
config=config,
is_train=is_train)
position_decoder = model.PositionDecoder(encoder=encoder,
config=config,
is_train=is_train)
decode_cell = []
for t in range(config.triple_number if config.decoder_method ==
const.DecoderMethod.MULTI_DECODER else 1):
cell = model.set_rnn_cell(config.cell_name, config.decoder_num_units)
decode_cell.append(cell)
triple_decoder = model.TripleDecoder(
decoder_output_max_length=config.decoder_output_max_length,
encoder=encoder,
relation_decoder=relation_decoder,
position_decoder=position_decoder,
decode_cell=decode_cell,
config=config)
triple_decoder.build(train_method=train_method,
decoder_method=config.decoder_method,
is_train=is_train)
sess = tf.Session(config=tfconfig)
# sess = tf_debug.LocalCLIDebugWrapperSession(sess)
# sess.add_tensor_filter('has_inf_or_nan', tf_debug.has_inf_or_nan)
saver = tf.train.Saver()
if is_train and is_restore:
saver.restore(sess, model_filename)
else:
sess.run(tf.global_variables_initializer())
logger.debug('print trainable variables')
for v in tf.trainable_variables():
value = sess.run(v)
logger.info(v.name)
logger.debug('mean %.4f, max %.3f, min %.3f' %
(np.mean(value), np.max(value), np.min(value)))
return triple_decoder, sess
def encoder_test():
embedded_sentence = pre_model_test.embedder_test()
embedded_sentence = Variable(torch.FloatTensor(embedded_sentence))
encoder = model.Encoder(100,50)
_, h = encoder(embedded_sentence)
print(h.size())
return h
def step(self, samples):
# reverser
self.reverser = model.Encoder(FLAGS.sample_num, FLAGS.dc_dim,
FLAGS.z_dim)
self.R1, R1_logits, R1_inter = self.reverser.inference(samples)
return R1_logits
def __init__(self, config, args):
self.config = config
for k, v in args.__dict__.items():
setattr(self.config, k, v)
setattr(self.config, 'save_dir', '{}_log'.format(self.config.dataset))
disp_str = ''
for attr in sorted(dir(self.config), key=lambda x: len(x)):
if not attr.startswith('__'):
disp_str += '{} : {}\n'.format(attr,
getattr(self.config, attr))
sys.stdout.write(disp_str)
sys.stdout.flush()
self.labeled_loader, self.unlabeled_loader, self.dev_loader, self.special_set = data.get_cifar_loaders(
config)
self.dis = model.Discriminative(config).cuda()
self.ema_dis = model.Discriminative(config, ema=True).cuda()
self.gen = model.Generator(image_size=config.image_size,
noise_size=config.noise_size).cuda()
self.enc = model.Encoder(config.image_size,
noise_size=config.noise_size,
output_params=True).cuda()
# self.dis_optimizer = optim.Adam(self.dis.parameters(), lr=config.dis_lr, betas=(0.5, 0.999))
self.dis_optimizer = optim.SGD(self.dis.parameters(),
lr=config.dis_lr,
momentum=config.momentum,
weight_decay=config.weight_decay,
nesterov=config.nesterov)
self.gen_optimizer = optim.Adam(self.gen.parameters(),
lr=config.gen_lr,
betas=(0.0, 0.999))
self.enc_optimizer = optim.Adam(self.enc.parameters(),
lr=config.enc_lr,
betas=(0.0, 0.999))
self.d_criterion = nn.CrossEntropyLoss()
if config.consistency_type == 'mse':
self.consistency_criterion = losses.softmax_mse_loss # nn.MSELoss() # (size_average=False)
elif config.consistency_type == 'kl':
self.consistency_criterion = losses.softmax_kl_loss # nn.KLDivLoss() # (size_average=False)
else:
pass
self.consistency_weight = 0
if not os.path.exists(self.config.save_dir):
os.makedirs(self.config.save_dir)
if self.config.resume:
pass
log_path = os.path.join(
self.config.save_dir,
'{}.FM+VI.{}.txt'.format(self.config.dataset, self.config.suffix))
self.logger = open(log_path, 'wb')
self.logger.write(disp_str)
print self.dis
def main():
### Create the torch datasets and get the size of the 'on-the-fly' created vocabulary and the length of the longest caption
trainDataset = loadData.FlickrTrainDataset(images_folder, captions_folder,
trans, 'TRAIN')
valDataset = loadData.FlickrValDataset(images_folder, captions_folder,
trans, 'VAL')
voc_size = trainDataset.getVocabSize()
max_capt = trainDataset.getMaxCaptionsLength()
### Create the models
Encoder = model.Encoder()
Decoder = model.Decoder(encoder_dim=2048,
decoder_dim=512,
attention_dim=256,
vocab_size=voc_size)
Embedding = model.Embedding(vocab_size=voc_size, embedding_dim=128)
### Set the optimizer for the decoder(the only component that is actually trained) and the device for the model tensors
decoder_optimizer = torch.optim.Adam(params=filter(
lambda p: p.requires_grad, Decoder.parameters()),
lr=e - 3)
Encoder.to(device)
Decoder.to(device)
Embedding.to(device)
### Create the data loaders for training and evaluation
loader_train = DataLoader(trainDataset,
32,
sampler=sampler.SubsetRandomSampler(
range(30000)))
val_loader = DataLoader(valDataset,
32,
sampler=sampler.SubsetRandomSampler(range(30000)))
best_bleu = 0 #The best blue score by now
for i in range(epochs):
## One epoch's training
train.train(data_loader=loader_train,
encoder=Encoder,
decoder=Decoder,
embedding=Embedding,
max_caption_length=max_capt,
optim=decoder_optimizer)
## One epoch's validation
new_bleu = train.validate(data_loader=val_loader,
encoder=Encoder,
decoder=Decoder,
embedding=Embedding,
max_capt)
if new_bleu > best_bleu:
best_bleu = new_bleu
else:
## We had no improvement since last time,so se don't train more
break
## Save the model for deploying
torch.save(Encoder, 'Encoder')
torch.save(Decoder, 'Decoder')
torch.save(Embedding, 'Embedding')
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--dataset', type=str,
choices=['ffhq', 'cifar', 'mnist', 'mnist_fashion', 'emnist'])
parser.add_argument('--image_size', type=int, choices=[32, 64, 128])
args = parser.parse_args()
latent_dim = 32
image_size = args.image_size
image_shape = [3, image_size, image_size]
batch_size = 512
train_loader, _ = data_helper.get_data(args.dataset, batch_size, image_size)
for each_distribution in ['standard_normal', 'uniform', 'gamma', 'beta', 'chi', 'laplace']:
encoder = model.Encoder(latent_dim, image_shape).cuda()
encoder.load_state_dict(torch.load(f'model/image_size_128_epoch_500_test_1/encoder_{args.dataset}_{args.image_size}_{each_distribution}'))
z_array = None
for each_batch in tqdm.tqdm(train_loader):
each_batch = Variable(each_batch[0]).cuda()
each_z_batch = encoder(each_batch)
if z_array is None:
z_array = each_z_batch.cpu().detach().numpy()
else:
z_array = np.concatenate((z_array, (each_z_batch.cpu().detach().numpy())))
print_percentage_of_data_that_is_difficult_to_generate(z_array, each_distribution)
def main():
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
data_device = torch.device("cpu")
print("Device type: %s" % device.type)
encoder = model.Encoder(depth)
decoder = model.Decoder(depth)
net = torch.nn.Sequential(encoder, decoder).to(device)
optimizer = optim.Adadelta(net.parameters(), lr=0.01)
dataset = load.WavDataSet("data/wav/", model.downsample_factor**depth,
data_device)
dataloader = torch.utils.data.dataloader.DataLoader(dataset,
batch_size=batch_size,
shuffle=True)
print("Starting training")
for e in range(epochs):
net.train()
loss_sum = 0
for batch_idx, (data_noise, data) in enumerate(dataloader):
data = data.to(device)
data_noise = data_noise.to(device)
optimizer.zero_grad()
output = net(data_noise)
loss = F.mse_loss(output, data)
loss.backward()
optimizer.step()
loss_sum += loss
print("Epoch: %d\tLoss: %f" % (e, loss_sum))
if e % 50 == 0:
torch.save(net.state_dict(), "checkpoint/model_%d.pth" % e)
def __init__(self, model_file1=model_path):
# You should
# 1. create the model object
# 2. load your state_dict
# 3. call cuda()
# self.model = ...
#
self.models_detector = []
for i in range(6):
models = {}
encoder_path = os.path.join(model_file1[i], "encoder.pth")
encoder_dict = torch.load(encoder_path, map_location=device)
feed_height = encoder_dict["height"]
feed_width = encoder_dict["width"]
models["encoder"] = model.Encoder(feed_width, feed_height, False)
filtered_dict_enc = {
k: v
for k, v in encoder_dict.items()
if k in models["encoder"].state_dict()
}
models["encoder"].load_state_dict(filtered_dict_enc)
decoder_path = os.path.join(model_file1[i], "decoder.pth")
models["decoder"] = model.Decoder(models["encoder"].num_ch_enc)
models["decoder"].load_state_dict(
torch.load(decoder_path, map_location=device))
for key in models.keys():
models[key].to(device)
models[key].eval()
self.models_detector.append(models)
def load(name, i2w, w2i):
ctx_enc = model.Encoder(vocab_size=len(i2w),
emb_size=args.emb_size,
hid_size=args.hid_size,
embedding_weights=None)
r_enc = model.Encoder(vocab_size=len(i2w),
emb_size=args.emb_size,
hid_size=args.hid_size,
embedding_weights=None)
d_enc = model.DualEncoder(context_encoder=ctx_enc,
response_encoder=r_enc,
w2i=w2i,
i2w=i2w,
args=args)
d_enc = d_enc.to(device)
d_enc.load(name)
return d_enc
def get_model(embeddings,word2id,paths):
encoder = model.Encoder(args, embeddings,config=config)
encoder.build()
if args.decode_method==0 or args.decode_method==1:
decoder=model.softmaxOrCRFDecoder(encoder,args, tag2label, word2id, paths, config)
else:
print("Invalid argument! Please use valid arguments!")
decoder.build()
return decoder
def __init__(self, pidx: int, gidx: int, n_features: int, n_hiddens: int):
self.n_features = n_features
self.pidx = pidx
self.gidx = gidx
self.gpu = torch.device('cuda:{}'.format(gidx - 1))
self.encoder = model.Encoder(n_inputs=n_features, n_hiddens=n_hiddens).to(self.gpu)
self.decoder = model.AttentionDecoder(n_hiddens=n_hiddens, n_features=n_features).to(self.gpu)
self.model_fn = 'checkpoints/SWaT-P{}'.format(pidx)
self.encoder_optimizer = optim.Adam(self.encoder.parameters(), amsgrad=True)
self.decoder_optimizer = optim.Adam(self.decoder.parameters(), amsgrad=True)
self.mse_loss = nn.MSELoss()
def main():
print('Generating emb...')
checkpoint = torch.load(
hp.eval_model, map_location=lambda storage, loc: storage.cuda(hp.gpu))
encoder = model.Encoder(hp.emb_size, hp.hidden_size, hp.dropout_rate)
if hp.gpu >= 0:
encoder.cuda()
encoder.load_state_dict(checkpoint['encoder'])
w2v = de_biassing_emb(encoder)
eval_bias_analogy(w2v)
print('Saving emb...')
debias_emb_txt = 'src/debiased_{}/gender_debiased.txt'.format(sys.argv[1])
debias_emb_bin = 'src/debiased_{}/gender_debiased.bin'.format(sys.argv[1])
w2v.save_word2vec_format(debias_emb_bin, binary=True)
w2v.save_word2vec_format(debias_emb_txt, binary=False)
def step(self, z):
z_sum = tf.summary.histogram("z", z)
# generater
self.generator = model.Generator(FLAGS.batch_size, FLAGS.gc_dim)
# self.G = self.generator.inference(z)
# sampler using generator
self.samples = self.generator.sampler(z, reuse=False, trainable=False)
# reverser
self.reverser = model.Encoder(FLAGS.batch_size, FLAGS.dc_dim,
FLAGS.z_dim)
self.R1, R1_logits, R1_inter = self.reverser.inference(self.samples)
R_sum = tf.summary.histogram("R", self.R1)
# return images, D1_logits, D2_logits, G_sum, z_sum, d1_sum, d2_sum
# return D2_logits, G_sum, z_sum, d1_sum, d2_sum
return R1_logits, R1_inter, R_sum, z_sum
def main():
# -------- hyper params --------------
file_path = "nlp_sample.txt"
embedding_dim = 200
hidden_dim = 128
BATCH_NUM = 100
epoch = 10
# 損失関数
criterion = gluon.loss.SoftmaxCrossEntropyLoss()
# optimize
opt = "adam"
save = True
# ----- dataの用意 ---------
input_date, output_date = utils.date_load(file_path)
# inputとoutputの系列の長さを取得
# すべて長さが同じなので、0番目の要素でlenを取ってます
# paddingする必要は、このデータに対してはない
# input_len = len(input_date[0]) # 29
# output_len = len(output_date[0]) # 10
input_data, output_data, char2id, id2char = utils.create_corpus(
input_date, output_date)
vocab_size = len(char2id)
# 7:3でtrainとtestに分ける
train_x, test_x, train_y, test_y = train_test_split(
input_data, output_data, train_size=0.7)
train_x = np.array(train_x)
train_y = np.array(train_y)
train_data = mx.io.NDArrayIter(train_x, train_y, BATCH_NUM, shuffle=False)
# -------- training ---------------
encoder = model.Encoder(vocab_size, embedding_dim, hidden_dim)
attn_decoder = model.AttentionDecoder(
vocab_size, embedding_dim, hidden_dim, BATCH_NUM)
encoder, attn_decoder = train(encoder, attn_decoder, train_data,
epoch, criterion, opt=opt, save=save)
def train(max_epoch, batch_size=64):
loss = [
1,
]
data = Data.Data()
voc_size = data.get_voc_size()
model = Model.Encoder(batch_size=batch_size,
voc_size=voc_size,
hidden_size=100,
device=device,
n_layers=1,
dropout=0).to(device)
criterion = nn.CrossEntropyLoss()
optimizer = torch.optim.SGD(model.parameters(), lr=0.03)
epoch_count = 0
increase_count = 0
while True:
train_loss = train_iter(data, model, criterion, optimizer, batch_size,
voc_size)
# sample
loss.append(
sample(dataset=data,
model=model,
batch_size=batch_size,
criterion=criterion))
print('epoch :', epoch_count, "\t", loss[-1], "\t", train_loss)
if epoch_count > 500:
torch.save(model.state_dict(),
"../ckpt/model" + str(epoch_count % 100))
# judge whether stop or not
if loss[-2] < loss[-1]:
increase_count += 1
if increase_count > 10 and loss[-1] < 0.2:
break
else:
increase_count = 0
# increase epoch count
epoch_count += 1
plt.plot(loss)
plt.show()
def get_model(train_method, config):
logger.info('Building model --------------------------------------')
logger.info('Parameter init Randomly')
embedding_table = model.get_embedding_table(config)
encoder = model.Encoder(config=config,
max_sentence_length=config.max_sentence_length,
embedding_table=embedding_table)
encoder.set_cell(name=config.cell_name, num_units=config.encoder_num_units)
encoder.build()
if config.decoder_method == DecoderMethod.ONE_DECODER:
decoder = model.OneDecoder(
decoder_output_max_length=config.decoder_output_max_length,
embedding_table=embedding_table,
encoder=encoder,
config=config)
elif config.decoder_method == DecoderMethod.MULTI_DECODER:
decoder = model.MultiDecoder(
decoder_output_max_length=config.decoder_output_max_length,
embedding_table=embedding_table,
encoder=encoder,
config=config)
else:
logger.error('decoder_method is %s, which is illegal.' %
config.decoder_method)
exit()
decoder.set_cell(name=config.cell_name, num_units=config.decoder_num_units)
decoder.build(is_train=is_train)
sess = tf.Session(config=tfconfig)
sess.run(tf.global_variables_initializer())
logger.debug('print trainable variables')
for v in tf.trainable_variables():
value = sess.run(v)
logger.debug('Name %s:\tmean %s, max %s, min %s' %
(v.name, np.mean(value), np.max(value), np.min(value)))
return decoder, sess
def __init__(self, config, args):
self.config = config
for k, v in args.__dict__.items():
setattr(self.config, k, v)
setattr(self.config, 'save_dir', '{}_log'.format(self.config.dataset))
disp_str = ''
for attr in sorted(dir(self.config), key=lambda x: len(x)):
if not attr.startswith('__'):
disp_str += '{} : {}\n'.format(attr,
getattr(self.config, attr))
sys.stdout.write(disp_str)
sys.stdout.flush()
self.labeled_loader, self.unlabeled_loader, self.unlabeled_loader2, self.dev_loader, self.special_set = data.get_cifar_loaders(
config)
self.dis = model.Discriminative(config).cuda()
self.gen = model.Generator(image_size=config.image_size,
noise_size=config.noise_size).cuda()
self.enc = model.Encoder(config.image_size,
noise_size=config.noise_size,
output_params=True).cuda()
# load model # ta
self.load_network(self.dis, 'D', strict=False)
self.load_network(self.gen, 'G', strict=False)
self.load_network(self.enc, 'E', strict=False)
if not os.path.exists(self.config.save_dir):
os.makedirs(self.config.save_dir)
log_path = os.path.join(
self.config.save_dir,
'{}.FM+VI.{}.txt'.format(self.config.dataset, self.config.suffix))
self.logger = open(log_path, 'wb')
self.logger.write(disp_str)
print self.dis
def load_models(checkpoint_name=None,
encoded_image_size=None,
word_embeddings_dim=None,
attention_dim=None,
decoder_hidden_size=None,
vocab_size=None,
device=None):
'''
:param checkpoint_name: name of checkpoint file
:param encoded_image_size: params to initialize model if there is no checkpoint name
:param word_embeddings_dim: params to initialize model if there is no checkpoint name
:param attention_dim: params to initialize model if there is no checkpoint name
:param decoder_hidden_size: params to initialize model if there is no checkpoint name
:param vocab_size: params to initialize model if there is no checkpoint name
:param device: on this device to store model
:return: start_epoch, end_epoch, loss_fn, enc, dec, optimizer_encoder, optimizer_decoder
'''
loss_fn = nn.CrossEntropyLoss().to(device)
end_epoch = 10_000
if checkpoint_name == None:
start_epoch = 0
enc = model.Encoder(encoded_image_size=encoded_image_size).to(device)
dec = model.Decoder(vocab_size=vocab_size,
word_embeddings_dim=word_embeddings_dim,
attention_dim=attention_dim,
decoder_hidden_size=decoder_hidden_size,
encoded_image_size=encoded_image_size).to(device)
optimizer_decoder = torch.optim.Adam(enc.parameters(), lr=4e-4)
optimizer_encoder = torch.optim.Adam(dec.parameters(), lr=1e-4)
else:
checkpoint = torch.load(checkpoint_name)
start_epoch = checkpoint['epoch']
dec = checkpoint['decoder'].to(device)
optimizer_decoder = checkpoint['decoder_optimizer']
enc = checkpoint['encoder'].to(device)
optimizer_encoder = checkpoint['encoder_optimizer']
return start_epoch, end_epoch, loss_fn, enc, dec, optimizer_encoder, optimizer_decoder
def main():
device = torch.device("cpu")
print("Device type: %s" % device.type)
encoder = model.Encoder(depth)
decoder = model.Decoder(depth)
net = torch.nn.Sequential(encoder, decoder).to(device)
net.load_state_dict(torch.load("checkpoint/model_3150.pth"))
net.eval()
dataset = load.WavDataSet("data/wav/", model.downsample_factor**depth,
device)
dataloader = torch.utils.data.dataloader.DataLoader(dataset,
batch_size=batch_size,
shuffle=True)
for batch_idx, data in enumerate(dataloader):
data = data.to(device)
output = net(data)
scipy.io.wavfile.write("out/%d.wav" % batch_idx, load.sample_rate,
output.data.numpy())
print("Finished %d" % batch_idx)
def build_model(hp):
encoder = model.Encoder(num_layers=hp["encoder_num_layers"],
num_units=hp["encoder_num_units"],
dropout=hp["encoder_dropout"],
dropout_prob=hp["encoder_dropout_prob"],
layer_norm=hp["encoder_layer_norm"],
dtype=tf.float32)
decoder = model.Decoder(
attention_unit_num=hp["decoder_attention_unit_num"],
vocab_size=hp["decoder_vocab_size"],
gru_unit_num=hp["decoder_gru_unit_num"],
fc_layer_num=hp["decoder_fc_layer_num"],
fc_unit_num=hp["decoder_fc_unit_num"],
attention_type=hp["decoder_attention_type"],
gru_layer_norm=hp["decoder_gru_layer_norm"],
gru_dropout=hp["decoder_gru_dropout"],
gru_dropout_prob=hp["decoder_gru_dropout_prob"],
fc_activation=hp["decoder_fc_activation"],
dtype=tf.float32)
return encoder, decoder
def load_model(model_name, sess, seq_length=None):
model_dir = os.path.dirname(model_name + '.meta')
model_config_file = './output/' + model_dir + "/params.yaml"
import yaml
with open(model_config_file, 'r') as stream:
model_params = yaml.load(stream)
model = model_params['model']
hidden_units = model_params['hidden_units']
num_layers = model_params['num_layers']
### TODO: Get this information from a separate config
prob_config = config.get_problem_config(rnn_model.PROBLEM_NAME)
if seq_length is None:
seq_length = prob_config['max_sequence_length']
observation_length = prob_config['input_length']
action_length = prob_config['output_length']
encoder = rnn_model.Encoder(action_length, observation_length)
input_length = encoder.size_x()
output_length = encoder.size_y()
start = time.time()
model = Seq2SeqModelExt(session=sess,
hidden_units=hidden_units,
model=model,
num_layers=num_layers,
seq_length=seq_length,
input_length=input_length,
output_length=output_length,
batch_size=1,
scope="model")
end = time.time()
model_create_time = end - start
#model.load('vrep/version1/model.ckpt-967')
model.load(model_name)
start = time.time()
model_load_time = start - end
return model
def make_model(src_vocab,
tgt_vocab,
emb_size=256,
hidden_size=512,
num_layers=1,
dropout=0.1):
"Helper: Construct a model from hyperparameters."
attention = model.BahdanauAttention(hidden_size)
mdl = model.EncoderDecoder(
model.Encoder(emb_size,
hidden_size,
num_layers=num_layers,
dropout=dropout),
model.Decoder(emb_size,
hidden_size,
attention,
num_layers=num_layers,
dropout=dropout), nn.Embedding(src_vocab, emb_size),
nn.Embedding(tgt_vocab, emb_size),
model.Generator(hidden_size, tgt_vocab))
return mdl.cuda() if USE_CUDA else mdl
dual_encoder = load(args.load_model, i2w, w2i)
evaluate_specific(valid, dual_encoder)
evaluate_specific(test, dual_encoder, suffix="test")
else:
# Load all the data
train, valid, test = load_data(args.data_path)
if args.data_size >= 0:
train = train[:int(len(train) * args.data_size)]
print("Number of training instances:", len(train))
print("Number of validation instances:", len(valid))
print("Number of test instances:", len(test))
i2w, w2i = build_vocab(train, path=args.data_path)
context_encoder = model.Encoder(vocab_size=len(i2w),
emb_size=args.emb_size,
hid_size=args.hid_size,
embedding_weights=emb_w)
response_encoder = model.Encoder(vocab_size=len(i2w),
emb_size=args.emb_size,
hid_size=args.hid_size,
embedding_weights=emb_w)
dual_encoder = model.DualEncoder(context_encoder=context_encoder,
response_encoder=response_encoder,
w2i=w2i,
i2w=i2w,
args=args)
dual_encoder = dual_encoder.to(device)
best_valid = 0.0
best_epoch = 0
for epoch in range(start_epoch, args.num_epochs):
# Train
from datetime import datetime
import numpy as np
import torch
import torch.nn as nn
import torch.optim as optim
import preprocessing
import model
# Encoder, Decoderの初期化
encoder = model.Encoder(vocab_size, embedding_dim, hidden_dim, batch_size).to(device)
decoder = model.Decoder(vocab_size, embedding_dim, hidden_dim, batch_size).to(device)
criterion = nn.CrossEntropyLoss(ignore_index=word2id["<pad>"], size_average=False)
# 最適化関数の定義
encoder_optimizer = optim.Adam(encoder.parameters(), lr=0.001)
decoder_optimizer = optim.Adam(decoder.parameters(), lr=0.001)
def get_current_time():
return datetime.now().strftime("%Y-%m-%d %H:%M:%S")
print("学習開始")
n_epoch = 60
sig_cnt = 0
all_losses = []
for epoch in range(1, n_epoch+1):
title_batch = preprocessing.train2batch(title_train, batch_size)
if epoch > 25:
sig_cnt += 1
envs = MultiEnvironment(args.env, args.batch_size, args.fskip)
action_size = envs.get_action_size()
print('Building models...')
torch.cuda.set_device(args.gpu)
if not (os.path.isfile(args.agent_file) and os.path.isfile(args.agent_file) and os.path.isfile(args.agent_file)):
print("need an agent file")
exit()
args.agent_file = args.env + ".model.80.tar"
agent = model.Agent(action_size).cuda()
agent.load_state_dict(torch.load(args.agent_file, map_location=map_loc))
Z_dim = args.latent
encoder = model.Encoder(Z_dim).cuda()
generator = model.Generator(Z_dim).cuda()
encoder.train()
generator.train()
optim_gen = optim.Adam(generator.parameters(), lr=args.lr, betas=(0.0,0.9))
optim_enc = optim.Adam(filter(lambda p: p.requires_grad, encoder.parameters()), lr=args.lr, betas=(0.0,0.9))
print('finished building model')
bs = args.batch_size
TINY = 1e-9
def immsave(file, pixels, size=200):
np_img = imresize(pixels,size, interp = 'nearest')
def main():
print('Loading word embedding')
emb = KeyedVectors.load_word2vec_format(hp.word_embedding,
binary=hp.emb_binary)
print("Loading data")
stereotype_words = {}
gender_words = {}
no_gender_words = make_no_gender_words(open(hp.no_gender_words), emb)
stereotype_words['female'], stereotype_words['male'] = \
make_pair_words(hp.stereotype_words, emb)
gender_words['female'], gender_words['male'] = \
make_pair_words(hp.gender_words, emb)
all_words = no_gender_words \
+ stereotype_words['female'] \
+ stereotype_words['male'] \
+ gender_words['female'] \
+ gender_words['male']
train_words, dev_words = create_train_dev(gender_words, no_gender_words,
stereotype_words)
word2emb = {}
for word in all_words:
word2emb[word] = emb[word]
if hp.pre_train_autoencoder:
print('Pre-training autoencoder')
encoder = model.Encoder(hp.emb_size, hp.hidden_size,
hp.pta_dropout_rate)
decoder = model.Decoder(hp.hidden_size, hp.emb_size,
hp.pta_dropout_rate)
if hp.gpu >= 0:
encoder.cuda()
decoder.cuda()
encoder_optim = make_optim(encoder, hp.pta_optimizer,
hp.pta_learning_rate, hp.pta_lr_decay,
hp.pta_max_grad_norm)
decoder_optim = make_optim(decoder, hp.pta_optimizer,
hp.pta_learning_rate, hp.pta_lr_decay,
hp.pta_max_grad_norm)
if hp.pre_data == 'random':
checkpoint = pre_train_autoencoder(hp, encoder, encoder_optim,
decoder, decoder_optim, emb)
elif hp.pre_data == 'common':
checkpoint = pre_train_autoencoder(hp,
encoder,
encoder_optim,
decoder,
decoder_optim,
emb,
dev_words=dev_words)
encoder = model.Encoder(hp.emb_size, hp.hidden_size, hp.dropout_rate)
decoder = model.Decoder(hp.hidden_size, hp.emb_size, hp.dropout_rate)
if hp.gpu >= 0:
encoder.cuda()
decoder.cuda()
if hp.pre_train_autoencoder:
encoder.load_state_dict(checkpoint['encoder'])
decoder.load_state_dict(checkpoint['decoder'])
if hp.pre_train_classifier:
female_classifier = model.Classifier(hp.hidden_size)
male_classifier = model.Classifier(hp.hidden_size)
if hp.gpu >= 0:
female_classifier.cuda()
male_classifier.cuda()
female_classifier_optim = make_optim(female_classifier,
hp.cls_optimizer,
hp.cls_learning_rate,
hp.cls_lr_decay,
hp.cls_max_grad_norm)
male_classifier_optim = make_optim(male_classifier, hp.cls_optimizer,
hp.cls_learning_rate,
hp.cls_lr_decay,
hp.cls_max_grad_norm)
encoder.eval()
encoder.zero_grad()
train_females = []
train_males = []
dev_females = []
dev_males = []
train_female_embs = [
encoder(torch.FloatTensor(emb[word[0]]).cuda()).data
if hp.gpu >= 0 else encoder(torch.FloatTensor(emb[word[0]])).data
for word in train_words['female & male']
]
encoder.zero_grad()
train_male_embs = [
encoder(torch.FloatTensor(emb[word[1]]).cuda()).data
if hp.gpu >= 0 else encoder(torch.FloatTensor(emb[word[1]])).data
for word in train_words['female & male']
]
encoder.zero_grad()
train_stereotype_embs = [
encoder(torch.FloatTensor(emb[word]).cuda()).data
if hp.gpu >= 0 else encoder(torch.FloatTensor(emb[word])).data
for word in train_words['no gender']
]
encoder.zero_grad()
dev_female_embs = [
encoder(torch.FloatTensor(emb[word[0]]).cuda()).data
if hp.gpu >= 0 else encoder(torch.FloatTensor(emb[word[0]])).data
for word in dev_words['female & male']
]
encoder.zero_grad()
dev_male_embs = [
encoder(torch.FloatTensor(emb[word[1]]).cuda()).data
if hp.gpu >= 0 else encoder(torch.FloatTensor(emb[word[1]])).data
for word in dev_words['female & male']
]
encoder.zero_grad()
dev_stereotype_embs = [
encoder(torch.FloatTensor(emb[word]).cuda()).data
if hp.gpu >= 0 else encoder(torch.FloatTensor(emb[word])).data
for word in dev_words['no gender']
]
encoder.zero_grad()
print('Pre-training classifier')
female_checkpoint, male_checkpoint = pre_train_classifier(
hp, female_classifier, male_classifier, female_classifier_optim,
male_classifier_optim, train_female_embs, train_male_embs,
train_stereotype_embs, dev_female_embs, dev_male_embs,
dev_stereotype_embs)
print('Building female & male classifiers')
female_classifier = model.Classifier(hp.hidden_size)
male_classifier = model.Classifier(hp.hidden_size)
if hp.gpu >= 0:
female_classifier.cuda()
male_classifier.cuda()
if hp.pre_train_classifier:
female_classifier.load_state_dict(female_checkpoint['female'])
male_classifier.load_state_dict(male_checkpoint['male'])
print('Setting optimizer')
encoder_optim = make_optim(encoder, hp.optimizer, hp.learning_rate,
hp.lr_decay, hp.max_grad_norm)
female_classifier_optim = make_optim(female_classifier, hp.optimizer,
hp.learning_rate, hp.lr_decay,
hp.max_grad_norm)
male_classifier_optim = make_optim(male_classifier, hp.optimizer,
hp.learning_rate, hp.lr_decay,
hp.max_grad_norm)
decoder_optim = make_optim(decoder, hp.optimizer, hp.learning_rate,
hp.lr_decay, hp.max_grad_norm)
trainModel(encoder, encoder_optim, female_classifier,
female_classifier_optim, male_classifier, male_classifier_optim,
decoder, decoder_optim, train_words, dev_words, word2emb)
torch.cuda.manual_seed_all(opt.manualSeed)
torch.set_default_tensor_type('torch.FloatTensor')
cudnn.benchmark = True # For speed i.e, cudnn autotuner
########################################################
if torch.cuda.is_available() and not opt.cuda:
print(
"WARNING: You have a CUDA device, so you should probably run with --cuda"
)
#calling the dataloader
data = util.DATA_LOADER(opt)
print("training samples: ", data.ntrain)
############## MODEL INITIALIZATION #############
netE = model.Encoder(opt)
netG = model.HYBRID_FUSION_ATTENTION(opt)
netD = model.Discriminator(opt)
print(netE)
print(netG)
print(netD)
################################################
#init tensors
input_res = torch.FloatTensor(opt.batch_size, opt.resSize)
input_test_labels = torch.LongTensor(opt.fake_batch_size, opt.nclass_all)
input_labels = torch.LongTensor(opt.batch_size, opt.nseen_class)
input_train_early_fusion_att = torch.FloatTensor(opt.batch_size, opt.attSize)
input_test_early_fusion_att = torch.FloatTensor(opt.fake_batch_size,
opt.attSize)
def main(config):
# prepare data
tokenizer = transformers.tokenization_bert.BertTokenizer.from_pretrained(
config.bert_model)
contexts, _, valid_qa = util.load_data(config, tokenizer)
context_text = [context["clean_context"] for context in contexts]
q_tokenized = [' '.join(qa["tokenized"]) for qa in valid_qa]
q_wordpiece = [qa["wordpiece"] for qa in valid_qa]
q_answer = [qa["answer"] for qa in valid_qa]
tfidf = TfidfVectorizer(analyzer=str.split,
encoding="utf-8",
stop_words="english",
ngram_range=(1, config.ngram))
# define TF-IDF
print("TF-IDF Retrieval")
tfidf_context = tfidf.fit_transform(
[' '.join(context["tokenized"]) for context in contexts])
tfidf_question = tfidf.transform(q_tokenized)
tfidf_sim = util.get_sim(tfidf_question, tfidf_context)
check_answer(tfidf_sim, context_text, q_answer)
del tfidf_context
del tfidf_question
gc.collect()
# define ICT model
config.devices = [int(device) for device in config.devices.split('_')]
if config.use_cuda:
config.device = config.devices[0]
else:
config.device = "cpu"
vocab = dict()
for k, v in tokenizer.vocab.items():
vocab[k] = v
start_token = vocab["[CLS]"]
model = Model.Encoder(config)
if config.use_cuda:
model.cuda()
model = nn.DataParallel(model, device_ids=config.devices)
optimizer = torch.optim.Adam(model.parameters(), lr=config.learning_rate)
loss = nn.CrossEntropyLoss()
# make data loader
def get_loader(data, batch_size):
data = TensorDataset(torch.from_numpy(data))
return DataLoader(data,
batch_size=batch_size,
shuffle=True,
sampler=None,
drop_last=True)
loader = get_loader(np.array([i for i in range(len(contexts))]),
config.batch_size)
def get_batch(index, contexts, start_token):
"make ICT batch data"
sentence = [contexts[i]["sentence"]
for i in index] # get sentences of paragraphs
target_sentence = [
random.randint(0,
len(sen) - 1) for sen in sentence
] # set target sentence for ICT training
remove_target = [
random.random() < (1 - config.remove_percent)
for _ in range(len(target_sentence))
] # determine removal of original sentence as mention in paper
target_context = [
sen[:i] + sen[i + remove:]
for i, sen, remove in zip(target_sentence, sentence, remove_target)
] # set sentences of target context
target_context = [[y for x in context for y in x]
for context in target_context
] # concat sentences of context
target_context = [[start_token] + context
for context in target_context]
target_sentence = [sen[i] for i, sen in zip(target_sentence, sentence)]
target_sentence = [[start_token] + sen for sen in target_sentence]
s, s_mask = util.pad_sequence(target_sentence,
max_seq=config.max_seq,
device=config.device) # pad sequence
c, c_mask = util.pad_sequence(target_context,
max_seq=config.max_seq,
device=config.device)
return s, s_mask, c, c_mask
def save(model, epoch, accuracy):
"save model weight"
model_to_save = model.module if hasattr(model, 'module') else model
save_dict = {
'epoch': epoch,
'accuracy': accuracy,
'model': model_to_save.state_dict()
}
torch.save(save_dict, config.model_weight)
def load(model, device):
"load model weight"
model_to_load = model.module if hasattr(model, 'module') else model
load_dict = torch.load(
config.model_weight,
map_location=lambda storage, loc: storage.cuda(device))
model_to_load.load_state_dict(load_dict['model'])
return model_to_load
def get_semantic_sim(model):
"make semantic embedding of context, question. and get similarity"
context_embedding = []
question_embedding = []
model.eval()
with torch.no_grad():
for i in tqdm(range(0, len(contexts), config.test_batch_size)):
c = [[y for x in context["sentence"] for y in x]
for context in contexts[i:i + config.test_batch_size]]
c, c_mask = util.pad_sequence(c,
max_seq=config.max_seq,
device=config.device)
c_encode = model(x=c, x_mask=c_mask)
context_embedding.append(c_encode.detach().cpu().numpy())
for i in tqdm(range(0, len(q_wordpiece), config.test_batch_size)):
q = [
tokens
for tokens in q_wordpiece[i:i + config.test_batch_size]
]
q, q_mask = util.pad_sequence(q,
max_seq=config.max_seq,
device=config.device)
q_encode = model(x=q, x_mask=q_mask)
question_embedding.append(q_encode.detach().cpu().numpy())
context_embedding = np.concatenate(context_embedding, axis=0)
question_embedding = np.concatenate(question_embedding, axis=0)
return util.get_sim(question_embedding, context_embedding)
# train ICT model
max_accuracy = -math.inf
print("ICT model Retrieval.")
for e in range(config.epoch):
model.train()
avg_loss = .0
batch_num = len(loader)
for batch in tqdm(loader, total=batch_num):
batch = batch[0]
s, s_mask, c, c_mask = get_batch(batch, contexts, start_token)
s_encode = model(x=s, x_mask=s_mask)
c_encode = model(x=c, x_mask=c_mask)
logit = torch.matmul(s_encode, c_encode.transpose(-2, -1))
target = torch.from_numpy(
np.array([i for i in range(batch.size(0))
])).long().to(config.device)
loss_val = loss(logit, target).mean()
avg_loss += loss_val.item()
loss_val.backward()
optimizer.step()
optimizer.zero_grad()
print("{} epoch, train loss : {}".format(
e + 1, round(avg_loss / batch_num, 2)))
semantic_sim = get_semantic_sim(model)
accuracy = check_answer(semantic_sim, context_text, q_answer)
if accuracy > max_accuracy:
max_accuracy = accuracy
save(model, e + 1, accuracy)
# evaluate model with best performance weight
model = load(model, config.device)
semantic_sim = get_semantic_sim(model)
check_answer(semantic_sim, context_text, q_answer)
# evalute ensemble
check_answer(
semantic_sim * (1 - config.sim_ratio) + tfidf_sim * config.sim_ratio,
context_text, q_answer)
import numpy as np
INPUT_DIM = len(data.SRC.vocab)
OUTPUT_DIM = len(data.TRG.vocab)
TRG_PAD_IDX = data.TRG.vocab.stoi[data.TRG.pad_token]
SRC_PAD_IDX = data.SRC.vocab.stoi[data.SRC.pad_token]
train_iterator = data.get_train_iterator()
test_iterator = data.get_test_iterator()
val_iterator = data.get_valid_iterator()
encoder = model.Encoder(vocab_size=INPUT_DIM,
d_model=config.HID_DIM,
ff_dim=config.PF_DIM,
n_heads=config.N_HEADS,
max_len=config.MAX_LEN,
dropout=config.DROPOUT,
n_layers=config.N_LAYERS,
n_experts=config.N_EXP,
capacity_factor=config.CAPACITY_FACTOR,
device=config.DEVICE).to(config.DEVICE)
decoder = model.Decoder(output_dim=OUTPUT_DIM,
d_model=config.HID_DIM,
ff_dim=config.PF_DIM,
n_heads=config.N_HEADS,
max_len=config.MAX_LEN,
dropout=config.DROPOUT,
n_layers=config.N_LAYERS,
n_experts=config.N_EXP,
capacity_factor=config.CAPACITY_FACTOR,
device=config.DEVICE).to(config.DEVICE)