def __init__(self):
print(" # Welcome to HRED Chatbot.")
print(" # Tensorflow detected: v{}".format(tf.__version__))
print()
self.config = HConfig()
self.dataloader = DataLoader(self.config.num_utterance,
self.config.max_length,
self.config.split_ratio,
self.config.batch_size)
self.word_to_id = self.dataloader.word_to_id
self.id_to_word = self.dataloader.id_to_word
self.config.vocab_size = self.dataloader.vocab_size
self.config.SOS_ID = self.dataloader.SOS_ID
self.config.EOS_ID = self.dataloader.EOS_ID
self.model = Model(self.config)
print()
print(" # Parameter Size: {}".format(self.model.get_parameter_size()))
print()
### session
self.sess = tf.Session()
self.config.checkpoint_dir = os.path.join(
"save", self.model.__class__.__name__)
print(" # Save directory: {}".format(self.config.checkpoint_dir))
def loadTrainDataAndValidateDate(args):
# 加载训练集
trainsrc = os.path.join(args.data, "train.src")
traintrg = os.path.join(args.data, "train.trg")
trainmta = os.path.join(args.data, "train.mta")
trainData = DataLoader(trainsrc, traintrg, trainmta, args.batch,
args.bucketsize)
print("Reading training data...")
trainData.load(args.max_num_line)
print("Allocation: {}".format(trainData.allocation))
print("Percent: {}".format(trainData.p))
# 如果存在验证集，加载验证集
valsrc = os.path.join(args.data, "val.src")
valtrg = os.path.join(args.data, "val.trg")
valmta = os.path.join(args.data, "val.mta")
valData = 0
if os.path.isfile(valsrc) and os.path.isfile(valtrg):
valData = DataLoader(valsrc, valtrg, valmta, args.batch,
args.bucketsize, True)
print("Reading validation data...")
valData.load()
assert valData.size > 0, "Validation data size must be greater than 0"
print("Loaded validation data size {}".format(valData.size))
else:
print("No validation data found, training without validating...")
return trainData, valData
def main():
""" config some args
"""
print('start training ...')
config = Config()
config.save_path = config.save_path + str(config.task_id) + '/'
config.data_dir = 'data/dialog-bAbI-tasks/'
config.target_file = 'trn'
loader = DataLoader(config)
print('\nconfig vocab_size: {}, batch_num: {}, seq_length: {}'.format(
config.vocab_size, config.batch_num, config.seq_length))
config.create_properties()
train(config, loader)
from data_utils import DataLoader, Tokenizer
from utils import fetch_translations_and_bleu, get_args
from modeling import TransformerMaskPredict
PROJECT_NAME = "parallel-decoder-paper"
if __name__ == "__main__":
args = get_args()
wandb.init(project=PROJECT_NAME, config=args)
model = TransformerMaskPredict.from_pretrained(args.model_id)
tokenizer = Tokenizer(model.config.encoder_id, model.config.decoder_id,
model.config.length_token)
dl = DataLoader(args, tokenizer)
tr_dataset, val_dataset, tst_dataset = dl()
data, columns = dl.build_seqlen_table()
wandb.log({'Sequence-Lengths': wandb.Table(data=data, columns=columns)})
for mode, dataset in zip(["tr", "val", "tst"],
[tr_dataset, val_dataset, tst_dataset]):
out = fetch_translations_and_bleu(model,
dataset,
tokenizer,
args.iterations,
args.B,
num_samples=args.bleu_num_samples)
data = list(zip(out["src"], out["tgt"], out["pred"]))
wandb.log({
logger = logging.getLogger('Sentiment Analysis')
logging_level = logging.DEBUG if args.verbose else logging.INFO
logging.basicConfig(level=logging_level)
if args.file is None:
print('Need to pass the directory of reviews. Exiting...')
parser.print_help()
exit(-1)
###
# Load the data
###
dataLoader = DataLoader(logging)
training_data = dataLoader.load_data(args.file,
'train',
limit=int(args.num_records),
randomize=True)
logging.info('*************** describe data ***************')
logging.info(training_data.describe())
logging.info('*************** describe types *************** \n {0}'.format(
training_data.dtypes))
logging.debug('head data set')
logging.debug(training_data.head(2))
logging.debug('tail data set')
def train(args):
logging.basicConfig(filename="training.log", level=logging.INFO)
trainsrc = os.path.join(args.data, "train.src")
traintrg = os.path.join(args.data, "train.trg")
trainData = DataLoader(trainsrc, traintrg, args.batch, args.bucketsize)
print("Reading training data...")
trainData.load(args.max_num_line)
print("Allocation: {}".format(trainData.allocation))
print("Percent: {}".format(trainData.p))
valsrc = os.path.join(args.data, "val.src")
valtrg = os.path.join(args.data, "val.trg")
if os.path.isfile(valsrc) and os.path.isfile(valtrg):
valData = DataLoader(valsrc, valtrg, args.batch, args.bucketsize, True)
print("Reading validation data...")
valData.load()
assert valData.size > 0, "Validation data size must be greater than 0"
print("Loaded validation data size {}".format(valData.size))
else:
print("No validation data found, training without validating...")
## create criterion, model, optimizer
if args.criterion_name == "NLL":
criterion = NLLcriterion(args.vocab_size)
lossF = lambda o, t: criterion(o, t)
else:
assert os.path.isfile(args.knearestvocabs),\
"{} does not exist".format(args.knearestvocabs)
print("Loading vocab distance file {}...".format(args.knearestvocabs))
with h5py.File(args.knearestvocabs) as f:
V, D = f["V"][...], f["D"][...]
V, D = torch.LongTensor(V), torch.FloatTensor(D)
D = dist2weight(D, args.dist_decay_speed)
if args.cuda and torch.cuda.is_available():
V, D = V.cuda(), D.cuda()
criterion = KLDIVcriterion(args.vocab_size)
lossF = lambda o, t: KLDIVloss(o, t, criterion, V, D)
m0 = EncoderDecoder(args.vocab_size,
args.embedding_size,
args.hidden_size,
args.num_layers,
args.dropout,
args.bidirectional)
m1 = nn.Sequential(nn.Linear(args.hidden_size, args.vocab_size),
nn.LogSoftmax(dim=1))
if args.cuda and torch.cuda.is_available():
print("=> training with GPU")
m0.cuda()
m1.cuda()
criterion.cuda()
#m0 = nn.DataParallel(m0, dim=1)
else:
print("=> training with CPU")
m0_optimizer = torch.optim.Adam(m0.parameters(), lr=args.learning_rate)
m1_optimizer = torch.optim.Adam(m1.parameters(), lr=args.learning_rate)
## load model state and optmizer state
if os.path.isfile(args.checkpoint):
print("=> loading checkpoint '{}'".format(args.checkpoint))
logging.info("Restore training @ {}".format(time.ctime()))
checkpoint = torch.load(args.checkpoint)
args.start_iteration = checkpoint["iteration"]
best_prec_loss = checkpoint["best_prec_loss"]
m0.load_state_dict(checkpoint["m0"])
m1.load_state_dict(checkpoint["m1"])
m0_optimizer.load_state_dict(checkpoint["m0_optimizer"])
m1_optimizer.load_state_dict(checkpoint["m1_optimizer"])
else:
print("=> no checkpoint found at '{}'".format(args.checkpoint))
logging.info("Start training @ {}".format(time.ctime()))
best_prec_loss = float('inf')
#print("=> initializing the parameters...")
#init_parameters(m0)
#init_parameters(m1)
## here: load pretrained wrod (cell) embedding
num_iteration = args.epochs * sum(trainData.allocation) // args.batch
print("Iteration starts at {} "
"and will end at {}".format(args.start_iteration, num_iteration-1))
## training
for iteration in range(args.start_iteration, num_iteration):
try:
input, lengths, target = trainData.getbatch()
if args.cuda and torch.cuda.is_available():
input, lengths, target = input.cuda(), lengths.cuda(), target.cuda()
m0_optimizer.zero_grad()
m1_optimizer.zero_grad()
## forward computation
output = m0(input, lengths, target)
loss = batchloss(output, target, m1, lossF, args.generator_batch)
## compute the gradients
loss.backward()
## clip the gradients
clip_grad_norm_(m0.parameters(), args.max_grad_norm)
clip_grad_norm_(m1.parameters(), args.max_grad_norm)
## one step optimization
m0_optimizer.step()
m1_optimizer.step()
## average loss for one word
avg_loss = loss.item() / target.size(0)
if iteration % args.print_freq == 0:
print("Iteration: {}\tLoss: {}".format(iteration, avg_loss))
if iteration % args.save_freq == 0 and iteration > 0:
prec_loss = validate(valData, (m0, m1), lossF, args)
if prec_loss < best_prec_loss:
best_prec_loss = prec_loss
logging.info("Best model with loss {} at iteration {} @ {}"\
.format(best_prec_loss, iteration, time.ctime()))
is_best = True
else:
is_best = False
print("Saving the model at iteration {} validation loss {}"\
.format(iteration, prec_loss))
savecheckpoint({
"iteration": iteration,
"best_prec_loss": best_prec_loss,
"m0": m0.state_dict(),
"m1": m1.state_dict(),
"m0_optimizer": m0_optimizer.state_dict(),
"m1_optimizer": m1_optimizer.state_dict()
}, is_best)
except KeyboardInterrupt:
break
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output
from datetime import date, datetime
from data_utils import DataLoader
from fig_utils import get_ts_plot, get_bar_plot, get_pie_plot
"""
This is the main dashboard program and it uses 'data_utils' for
fetching the data and 'fig_utils' to fetch plotply express figues.
"""
numpy.seterr(divide='ignore')
os.environ["TZ"] = "Asia/Kolkata"
time.tzset()
DL = DataLoader()
start_date = datetime.strptime('2020-01-01', '%Y-%m-%d')
end_date = date.today()
#external_stylesheets = ['bWLwgP.css']
#external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']
external_stylesheets = ['mystyle.css']
colors = {'background': '#111111', 'text': '#7FDBFF'}
app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
app.title = 'Jayanti Prasad\'s Covid-19 Dashboard'
my_js_url = ['display.js']
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# device = torch.device("cpu")
# Define model
model = nn.DataParallel(WESS()).to(device)
tokenizer = BertTokenizer.from_pretrained('bert-base-uncased')
model_bert = BertModel.from_pretrained('bert-base-uncased')
print("Models Have Been Defined")
# Get dataset
dataset = WESSDataLoader(tokenizer, model_bert)
# Optimizer and loss
optimizer = torch.optim.Adam(model.parameters(), lr=hp.learning_rate)
wess_loss = WESSLoss().to(device)
# loss_list = list()
# Get training loader
print("Get Training Loader")
training_loader = DataLoader(dataset,
batch_size=hp.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
num_workers=cpu_count())
# Load checkpoint if exists
try:
checkpoint = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
# optimizer.load_state_dict(checkpoint['optimizer'])
print("---Model Restored at Step %d---\n" % args.restore_step)
except:
print("---Start New Training---\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Init logger
if not os.path.exists("logger"):
os.mkdir("logger")
# Training
model = model.train()
total_step = hp.epochs * len(training_loader)
Time = np.array(list())
Start = time.clock()
for epoch in range(hp.epochs):
for i, data_of_batch in enumerate(training_loader):
start_time = time.clock()
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
optimizer.zero_grad()
# Prepare Data
indexs_list = torch.Tensor([i for i in range(hp.batch_size)
]).int().to(device)
# print(indexs_list)
texts = data_of_batch["text"]
mels = data_of_batch["mel"]
embeddings = data_of_batch["embeddings"]
sep_lists = data_of_batch["sep"]
gates = data_of_batch["gate"]
if torch.cuda.is_available():
texts = torch.from_numpy(texts).long().to(device)
else:
texts = torch.from_numpy(texts).long().to(device)
mels = torch.from_numpy(mels).to(device)
gates = torch.from_numpy(gates).float().to(device)
# print("mels:", mels.size())
# print("gates:", gates.size())
# print(gates)
# Forward
output, mel_target, gate_target = model(texts, embeddings,
sep_lists, indexs_list,
mels, gates)
mel_output, mel_out_postnet, gate_predicted = output
# # Test
# print(mel_out_postnet.size())
# print(mel_out_postnet)
# test_mel = mel_out_postnet[0].cpu().detach().numpy()
# np.save("test_mel.npy", test_mel)
# print(gate_predicted)
# print()
# print("mel target size:", mels.size())
# print("mel output size:", mel_output.size())
# print("gate predict:", gate_predicted.size())
# Calculate loss
if if_parallel:
total_loss, mel_loss, gate_loss = wess_loss(
mel_output, mel_out_postnet, gate_predicted, mel_target,
gate_target)
# print(gate_loss)
# loss_list.append(total_loss.item())
# print(total_loss.item())
else:
# print("there")
total_loss, mel_loss, gate_loss = wess_loss(
mel_output, mel_out_postnet, gate_predicted, mels, gates)
t_l = total_loss.item()
m_l = mel_loss.item()
g_l = gate_loss.item()
with open(os.path.join("logger", "total_loss.txt"),
"a") as f_total_loss:
f_total_loss.write(str(t_l) + "\n")
with open(os.path.join("logger", "mel_loss.txt"),
"a") as f_mel_loss:
f_mel_loss.write(str(m_l) + "\n")
with open(os.path.join("logger", "gate_loss.txt"),
"a") as f_gate_loss:
f_gate_loss.write(str(g_l) + "\n")
# Backward
total_loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), hp.grad_clip_thresh)
# Update weights
optimizer.step()
if current_step % hp.log_step == 0:
Now = time.clock()
str1 = "Epoch [{}/{}], Step [{}/{}], Gate Loss: {:.4f}, Mel Loss: {:.4f}, Total Loss: {:.4f}.".format(
epoch + 1, hp.epochs, current_step, total_step,
gate_loss.item(), mel_loss.item(), total_loss.item())
str2 = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start), (total_step - current_step) * np.mean(Time))
print(str1)
print(str2)
with open(os.path.join("logger", "logger.txt"),
"a") as f_logger:
f_logger.write(str1 + "\n")
f_logger.write(str2 + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save(
{
'model': model.state_dict(),
'optimizer': optimizer.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % current_step))
print("save model at step %d ..." % current_step)
if current_step in hp.decay_step:
optimizer = adjust_learning_rate(optimizer, current_step)
end_time = time.clock()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(Time, [i for i in range(len(Time))],
axis=None)
Time = np.append(Time, temp_value)
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model = Tacotron2(hp).to(device)
model_SpeakerEncoder = SpeakerEncoder.get_model().to(device)
# model = Tacotron2(hp).to(device)
print("All Models Have Been Defined")
# Get dataset
dataset = Tacotron2DataLoader()
# Optimizer
optimizer = torch.optim.Adam(
model.parameters(), lr=hp.learning_rate, weight_decay=hp.weight_decay)
# Criterion
criterion = Tacotron2Loss()
# Get training loader
print("Get Training Loader")
training_loader = DataLoader(dataset, batch_size=hp.batch_size, shuffle=True,
collate_fn=collate_fn, drop_last=True, num_workers=cpu_count())
# Load checkpoint if exists
try:
checkpoint = torch.load(os.path.join(
hp.checkpoint_path, 'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
print("\n---Model Restored at Step %d---\n" % args.restore_step)
except:
print("\n---Start New Training---\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Define Some Information
total_step = hp.epochs * len(training_loader)
Time = np.array([])
Start = time.perf_counter()
# Training
model = model.train()
for epoch in range(hp.epochs):
for i, batch in enumerate(training_loader):
start_time = time.perf_counter()
# Count step
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
optimizer.zero_grad()
# Load Data
text_padded, input_lengths, mel_padded, gate_padded, output_lengths, mel_for_SE = batch
# Get Speaker Embedding
# print(np.shape(mel_for_SE))
mel_for_SE = torch.from_numpy(mel_for_SE).float().to(device)
# print(mel_for_SE.size())
with torch.no_grad():
SpeakerEmbedding = model_SpeakerEncoder(mel_for_SE)
# print(SpeakerEmbedding.size())
# print(SpeakerEmbedding)
# print(SpeakerEmbedding.grad)
if cuda_available:
text_padded = torch.from_numpy(text_padded).type(
torch.cuda.LongTensor).to(device)
else:
text_padded = torch.from_numpy(text_padded).type(
torch.LongTensor).to(device)
mel_padded = torch.from_numpy(mel_padded).to(device)
gate_padded = torch.from_numpy(gate_padded).to(device)
input_lengths = torch.from_numpy(input_lengths).to(device)
output_lengths = torch.from_numpy(output_lengths).to(device)
# print("mel", mel_padded.size())
# print("text", text_padded.size())
# print("gate", gate_padded.size())
batch = text_padded, input_lengths, mel_padded, gate_padded, output_lengths
x, y = model.parse_batch(batch)
y_pred = model(x, SpeakerEmbedding)
# Loss
loss, mel_loss, gate_loss = criterion(y_pred, y)
# Backward
loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), hp.grad_clip_thresh)
# Update weights
optimizer.step()
if current_step % hp.log_step == 0:
Now = time.perf_counter()
str_loss = "Epoch [{}/{}], Step [{}/{}], Mel Loss: {:.4f}, Gate Loss: {:.4f}, Total Loss: {:.4f}.".format(
epoch + 1, hp.epochs, current_step, total_step, mel_loss.item(), gate_loss.item(), loss.item())
str_time = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start), (total_step - current_step) * np.mean(Time))
print(str_loss)
print(str_time)
with open("logger.txt", "a")as f_logger:
f_logger.write(str_loss + "\n")
f_logger.write(str_time + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save({'model': model.state_dict(), 'optimizer': optimizer.state_dict(
)}, os.path.join(hp.checkpoint_path, 'checkpoint_%d.pth.tar' % current_step))
print("\nsave model at step %d ...\n" % current_step)
end_time = time.perf_counter()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(
Time, [i for i in range(len(Time))], axis=None)
Time = np.append(Time, temp_value)
def train():
if args.load_model and (not args.reset_hparams):
print("load hparams..")
hparams_file_name = os.path.join(args.output_dir, "hparams.pt")
hparams = torch.load(hparams_file_name)
else:
hparams = HParams(
data_path=args.data_path,
source_train=args.source_train,
target_train=args.target_train,
source_valid=args.source_valid,
target_valid=args.target_valid,
source_vocab=args.source_vocab,
target_vocab=args.target_vocab,
source_test=args.source_test,
target_test=args.target_test,
max_len=args.max_len,
max_tree_len=args.max_tree_len,
n_train_sents=args.n_train_sents,
cuda=args.cuda,
d_word_vec=args.d_word_vec,
d_model=args.d_model,
batch_size=args.batch_size,
batcher=args.batcher,
n_train_steps=args.n_train_steps,
dropout=args.dropout,
lr=args.lr,
lr_dec=args.lr_dec,
l2_reg=args.l2_reg,
init_type=args.init_type,
init_range=args.init_range,
trdec=args.trdec,
target_tree_vocab=args.target_tree_vocab,
target_word_vocab=args.target_word_vocab,
target_tree_train=args.target_tree_train,
target_tree_valid=args.target_tree_valid,
target_tree_test=args.target_tree_test,
max_tree_depth=args.max_tree_depth,
parent_feed=args.parent_feed,
rule_parent_feed=args.rule_parent_feed,
label_smooth=args.label_smooth,
raml_rule=args.raml_rule,
raml_tau=args.raml_tau,
no_lhs=args.no_lhs,
root_label=args.root_label,
single_readout=args.single_readout,
single_attn=args.single_attn,
pos=args.pos,
share_emb_softmax=args.share_emb_softmax,
attn=args.attn,
self_attn=args.self_attn,
no_word_to_rule=args.no_word_to_rule,
single_inp_readout=args.single_inp_readout,
rule_tanh=args.rule_tanh,
n_heads=args.n_heads,
d_k=args.d_k,
d_v=args.d_v,
residue=args.residue,
layer_norm=args.layer_norm,
no_piece_tree=args.no_piece_tree,
self_attn_input_feed=args.self_attn_input_feed,
trdec_attn_v1=args.trdec_attn_v1,
merge_bpe=args.merge_bpe,
ignore_rule_len=False,
nbest=False,
force_rule=True,
force_rule_step=1,
)
data = DataLoader(hparams=hparams)
hparams.add_param("source_vocab_size", data.source_vocab_size)
if args.trdec:
hparams.add_param("target_rule_vocab_size",
data.target_rule_vocab_size)
hparams.add_param("target_word_vocab_size",
data.target_word_vocab_size)
else:
hparams.add_param("target_vocab_size", data.target_vocab_size)
hparams.add_param("pad_id", data.pad_id)
hparams.add_param("unk_id", data.unk_id)
hparams.add_param("bos_id", data.bos_id)
hparams.add_param("eos_id", data.eos_id)
hparams.add_param("n_train_steps", args.n_train_steps)
# build or load model model
print("-" * 80)
print("Creating model")
if args.load_model:
model_file_name = os.path.join(args.output_dir, "model.pt")
print("Loading model from '{0}'".format(model_file_name))
model = torch.load(model_file_name)
optim_file_name = os.path.join(args.output_dir, "optimizer.pt")
print("Loading optimizer from {}".format(optim_file_name))
trainable_params = [p for p in model.parameters() if p.requires_grad]
optim = torch.optim.Adam(trainable_params,
lr=hparams.lr,
weight_decay=hparams.l2_reg)
optimizer_state = torch.load(optim_file_name)
optim.load_state_dict(optimizer_state)
extra_file_name = os.path.join(args.output_dir, "extra.pt")
step, best_val_ppl, best_val_bleu, cur_attempt, lr = torch.load(
extra_file_name)
else:
if args.trdec:
if args.trdec_attn:
model = TrDecAttn(hparams=hparams)
elif args.trdec_attn_v1:
model = TrDecAttn_v1(hparams=hparams)
elif args.trdec_single:
model = TrDecSingle(hparams=hparams)
else:
model = TrDec(hparams=hparams)
else:
model = Seq2Seq(hparams=hparams)
if args.init_type == "uniform":
print("initialize uniform with range {}".format(args.init_range))
for p in model.parameters():
p.data.uniform_(-args.init_range, args.init_range)
trainable_params = [p for p in model.parameters() if p.requires_grad]
optim = torch.optim.Adam(trainable_params,
lr=hparams.lr,
weight_decay=hparams.l2_reg)
#optim = torch.optim.Adam(trainable_params)
step = 0
best_val_ppl = 1e10
best_val_bleu = 0
cur_attempt = 0
lr = hparams.lr
if args.reset_hparams:
lr = args.lr
crit = get_criterion(hparams)
trainable_params = [p for p in model.parameters() if p.requires_grad]
num_params = count_params(trainable_params)
print("Model has {0} params".format(num_params))
print("-" * 80)
print("start training...")
start_time = log_start_time = time.time()
target_words, total_loss, total_corrects = 0, 0, 0
target_rules, target_total, target_eos = 0, 0, 0
total_word_loss, total_rule_loss, total_eos_loss = 0, 0, 0
model.train()
#i = 0
while True:
((x_train, x_mask, x_len, x_count), (y_train, y_mask, y_len, y_count),
batch_size) = data.next_train()
#print("x_train", x_train.size())
#print("y_train", y_train.size())
#print(i)
#i += 1
#print("x_train", x_train)
#print("x_mask", x_mask)
#print("x_len", x_len)
#print("y_train", y_train)
#print("y_mask", y_mask)
#exit(0)
optim.zero_grad()
if args.trdec:
y_total_count, y_rule_count, y_word_count, y_eos_count = y_count
target_total += (y_total_count - batch_size)
target_rules += y_rule_count
target_eos += y_eos_count
target_words += (y_word_count - batch_size)
logits = model.forward(x_train,
x_mask,
x_len,
y_train[:, :-1, :],
y_mask[:, :-1],
y_len,
y_train[:, 1:, 2],
y_label=y_train[:, 1:, 0])
logits = logits.view(
-1, hparams.target_word_vocab_size +
hparams.target_rule_vocab_size)
labels = y_train[:, 1:, 0].contiguous().view(-1)
#print("x_train_logits", logits)
#print("total:", y_total_count, "rule_count:", y_rule_count, "word_count:", y_word_count, "eos_count:", y_eos_count)
tr_loss, tr_acc, rule_loss, word_loss, eos_loss, rule_count, word_count, eos_count = \
get_performance(crit, logits, labels, hparams)
#print("perform rule_count:", rule_count, "word_count:", word_count, "eos_count", eos_count)
#print((y_train[:,:,0] >= hparams.target_word_vocab_size).long().sum().data[0])
#print(y_rule_count)
#print(rule_count.data[0])
assert y_rule_count == rule_count.item(
), "data rule count {}, performance rule count {}".format(
y_rule_count, rule_count.item())
assert y_eos_count == eos_count.item(
), "data eos count {}, performance eos count {}".format(
y_eos_count, eos_count.item())
assert y_word_count - batch_size == word_count.item(
), "data word count {}, performance word count {}".format(
y_word_count - batch_size, word_count.item())
total_word_loss += word_loss.item()
total_rule_loss += rule_loss.item()
total_eos_loss += eos_loss.item()
else:
target_words += (y_count - batch_size)
logits = model.forward(x_train, x_mask, x_len, y_train[:, :-1],
y_mask[:, :-1], y_len)
logits = logits.view(-1, hparams.target_vocab_size)
labels = y_train[:, 1:].contiguous().view(-1)
tr_loss, tr_acc = get_performance(crit, logits, labels, hparams)
total_loss += tr_loss.item()
total_corrects += tr_acc.item()
step += 1
if args.trdec and args.loss_type == "rule":
rule_loss.div_(batch_size)
rule_loss.backward()
elif args.trdec and args.loss_type == "word":
word_loss.div_(batch_size)
word_loss.backward()
else:
tr_loss.div_(batch_size)
tr_loss.backward()
grad_norm = torch.nn.utils.clip_grad_norm(model.parameters(),
args.clip_grad)
optim.step()
# clean up GPU memory
if step % args.clean_mem_every == 0:
gc.collect()
if step % args.log_every == 0:
epoch = step // data.n_train_batches
curr_time = time.time()
since_start = (curr_time - start_time) / 60.0
elapsed = (curr_time - log_start_time) / 60.0
log_string = "ep={0:<3d}".format(epoch)
log_string += " steps={0:<6.2f}".format(step / 1000)
log_string += " lr={0:<9.7f}".format(lr)
log_string += " loss={0:<7.2f}".format(tr_loss.item())
log_string += " |g|={0:<5.2f}".format(grad_norm)
if args.trdec:
log_string += " num_word={} num_rule={} num_eos={}".format(
target_words, target_rules, target_eos)
log_string += " ppl={0:<8.2f}".format(
np.exp(total_loss / target_words))
log_string += " ppl_word={0:<8.2f}".format(
np.exp(total_word_loss / target_words))
log_string += " ppl_rule={0:<8.2f}".format(
np.exp(total_rule_loss / target_rules))
if not args.no_piece_tree:
log_string += " ppl_eos={0:<8.2f}".format(
np.exp(total_eos_loss / target_eos))
log_string += " acc={0:<5.4f}".format(total_corrects /
target_total)
else:
log_string += " ppl={0:<8.2f}".format(
np.exp(total_loss / target_words))
log_string += " acc={0:<5.4f}".format(total_corrects /
target_words)
log_string += " wpm(k)={0:<5.2f}".format(target_words /
(1000 * elapsed))
log_string += " time(min)={0:<5.2f}".format(since_start)
print(log_string)
if step % args.eval_every == 0:
based_on_bleu = args.eval_bleu and best_val_ppl <= args.ppl_thresh
val_ppl, val_bleu = eval(model,
data,
crit,
step,
hparams,
eval_bleu=based_on_bleu,
valid_batch_size=args.valid_batch_size,
tr_logits=logits)
if based_on_bleu:
if best_val_bleu <= val_bleu:
save = True
best_val_bleu = val_bleu
cur_attempt = 0
else:
save = False
cur_attempt += 1
else:
if best_val_ppl >= val_ppl:
save = True
best_val_ppl = val_ppl
cur_attempt = 0
else:
save = False
cur_attempt += 1
if save:
save_checkpoint(
[step, best_val_ppl, best_val_bleu, cur_attempt, lr],
model, optim, hparams, args.output_dir)
else:
lr = lr * args.lr_dec
set_lr(optim, lr)
# reset counter after eval
log_start_time = time.time()
target_words = total_corrects = total_loss = 0
target_rules = target_total = target_eos = 0
total_word_loss = total_rule_loss = total_eos_loss = 0
if args.patience >= 0:
if cur_attempt > args.patience: break
else:
if step > args.n_train_steps: break
class Seq2SeqChatbot(object):
def __init__(self):
print(" # Welcome to Seq2Seq Chatbot.")
print(" # Tensorflow detected: v{}".format(tf.__version__))
print()
self.config = Config
self.dataloader = DataLoader(
self.config.num_utterance,
self.config.max_length,
self.config.split_ratio,
self.config.batch_size)
self.word_to_id = self.dataloader.word_to_id
self.id_to_word = self.dataloader.id_to_word
self.config.vocab_size = self.dataloader.vocab_size
self.config.SOS_ID = self.dataloader.SOS_ID
self.config.EOS_ID = self.dataloader.EOS_ID
self.model = Model(self.config)
print()
print(" # Parameter Size: {}".format(self.model.get_parameter_size()))
print()
self.sess = tf.Session()
self.config.checkpoint_dir = os.path.join("save", self.model.__class__.__name__)
print(" # Save directory: {}".format(self.config.checkpoint_dir))
def main(self):
# self.encoder_states(self.sess)
# self.train_model(self.sess)
if FLAGS.mode == 'train':
ckpt = tf.train.get_checkpoint_state(self.config.checkpoint_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path) and (not FLAGS.retrain):
print(" # Restoring model parameters from %s." % ckpt.model_checkpoint_path)
self.model.saver.restore(self.sess, ckpt.model_checkpoint_path)
else:
print(" # Creating model with fresh parameters.")
self.sess.run(self.model.init_op)
self.train_model(self.sess)
def encoder_states(self, sess):
f = 0
count = 0
for (enc_inp, dec_inp, dec_tar) in tqdm(self.dataloader.data_generator(flag='test')):
outputs = self.model.encoder_states_session(sess, enc_inp)
encoder_states = outputs['encoder_states']
encoder_outputs = outputs['encoder_outputs']
if f <= 2:
print('number of layer: {}'.format(len(encoder_states)))
for state in encoder_states:
print('shape of encoder_states: {}'.format(state.shape))
print('shape of encoder_outputs: {}'.format(encoder_outputs.shape))
f += 1
print(count)
count += 1
def save_session(self, sess):
print(" # Saving checkpoints.")
save_dir = os.path.join(self.config.checkpoint_dir)
model_name = self.model.__class__.__name__ + '.ckpt'
checkpoint_path = os.path.join(save_dir, model_name)
self.model.saver.save(sess, checkpoint_path)
print(' # Model saved.')
def train_model(self, sess):
best_result_loss = 1000.0
for epoch in range(self.config.num_epoch):
print()
print('----epoch: {}/{} | lr: {}'.format(epoch, self.config.num_epoch, sess.run(self.model.lr)))
tic = datetime.datetime.now()
train_iterator = self.dataloader.data_generator(flag='train')
test_iterator = self.dataloader.data_generator(flag='test')
train_batch_num = self.dataloader.train_batch_num
# test_batch_num = self.dataloader.test_batch_num
total_loss = 0.0
nll_loss = 0.0
word_error_rate = 0.0
count = 0
for (enc_inp, dec_inp, dec_tar) in tqdm(train_iterator, desc='training'):
train_out = self.model.train_session(sess, enc_inp, dec_inp, dec_tar)
count += 1
step = train_out["step"] # step 表示训练了多少个batch
total_loss += train_out["total_loss"]
nll_loss += train_out["nll_loss"]
word_error_rate += train_out["word_error_rate"]
if step % 50 == 0:
cur_loss = total_loss / count
cur_nll_loss = nll_loss / count
cur_word_error_rate = word_error_rate / count
cur_perplexity = math.exp(float(cur_nll_loss)) if cur_nll_loss < 300 else float("inf")
print(" Step %4d | Batch [%3d/%3d] | Loss %.6f | PPL %.6f | WER %.6f" %
(step, count, train_batch_num, cur_loss, cur_perplexity, cur_word_error_rate))
print()
total_loss /= count
nll_loss /= count
word_error_rate /= count
perplexity = math.exp(float(nll_loss)) if nll_loss < 300 else float("inf")
print(" Train Epoch %4d | Loss %.6f | PPL %.6f | WER %.6f" %
(epoch, total_loss, perplexity, word_error_rate))
# testing after every epoch
test_loss = 0.0
test_nll_loss = 0.0
test_count = 0
test_rate = 0.0
for (enc_inp, dec_inp, dec_tar) in tqdm(test_iterator, desc="testing"):
test_outputs = self.model.eval_session(sess, enc_inp, dec_inp, dec_tar)
test_loss += test_outputs["total_loss"]
test_nll_loss += test_outputs["nll_loss"]
test_rate += test_outputs["word_error_rate"]
test_count += 1
test_loss /= test_count
test_rate /= test_count
test_nll_loss /= test_count
test_perp = math.exp(float(test_nll_loss)) if test_nll_loss < 300 else float("inf")
print(" Test Epoch %d | Loss %.6f | PPL %.6f | WER %.6f" % (epoch, test_loss, test_perp, test_rate))
print()
if test_loss < best_result_loss:
self.save_session(sess)
if np.abs(best_result_loss - test_loss) < 0.03:
cur_lr = sess.run(self.model.lr)
sess.run(self.model.update_lr_op, feed_dict={self.model.new_lr: cur_lr * 0.5})
best_result_loss = test_loss
toc = datetime.datetime.now()
print(" # Epoch finished in {}".format(toc - tic))
use_selu=args.use_selu,
model_path=args.model_path,
use_gnn=args.use_gnn)
## Optimizer
optimizer_ttime = torch.optim.Adam(TTime_gnn.parameters(),
lr=args.lr,
amsgrad=True)
# optimizer_ttime = ScheduledOptim(torch.optim.Adam(TTime_gnn.parameters(), betas=(0.9, 0.98), eps=1e-9, amsgrad=False), 1, 128, 8000)
## Preparing the data
trainfiles = list(
filter(lambda x: x.endswith(".h5"), sorted(os.listdir(args.trainpath))))
validfiles = list(
filter(lambda x: x.endswith(".h5"), sorted(os.listdir(args.validpath))))
train_dataloader = DataLoader(args.trainpath)
print("Loading the training data...")
train_dataloader.read_files(trainfiles, args.use_gnn)
valid_dataloader = DataLoader(args.validpath)
print("Loading the validation data...")
valid_dataloader.read_files(validfiles, args.use_gnn)
train_slot_size = np.array(
list(map(lambda s: s.ntrips, train_dataloader.slotdata_pool)))
train_num_iterations = int(np.ceil(train_slot_size / args.batch_size).sum())
print("There are {} trips in the training dataset".format(
train_slot_size.sum()))
print("Number of iterations for an epoch: {}".format(train_num_iterations))
valid_slot_size = np.array(
list(map(lambda s: s.ntrips, valid_dataloader.slotdata_pool)))
valid_num_iterations = int(np.ceil(valid_slot_size / args.batch_size).sum())
config = yaml.safe_load(open(TRANSFORMER_CONFIG_FILE, "r"))
config = Dict.from_nested_dict(config)
args = TrainerConfig.from_default()
args.update(TRAINER_CONFIG.__dict__)
if not args.load_pretrained_path:
model = TransformerMaskPredict(config)
else:
model = TransformerMaskPredict.from_pretrained(
args.load_pretrained_path)
tokenizer = Tokenizer(model.config.encoder_id, model.config.decoder_id,
model.config.length_token)
dl = DataLoader(args, tokenizer)
tr_dataset, val_dataset, test_dataset = dl()
trainer = Trainer(model, tokenizer, args)
if args.load_training_state:
trainer.load_training_state_dict(args.base_dir)
trainer.fit(tr_dataset, val_dataset)
if args.save_pretrained_path:
trainer.model.save_pretrained(
os.path.join(args.base_dir, args.save_pretrained_path))
tst_loss = trainer.evaluate(test_dataset)
wandb.log({"tst_loss": tst_loss})
def sample(config):
"""
:return:
"""
# config.batch_size = 1
loader = DataLoader(config)
print('\nconfig vocab_size: {}, batch_num: {}, seq_length: {}'.format(
config.vocab_size, config.batch_num, config.seq_length))
config.create_properties()
print('\nstart building models ...')
start = time.time()
model = Model(config)
print('... finished!')
print('building model time: {}'.format(time.time() - start))
print('\ncreating batches ...')
loader.create_batches()
print('... finished!')
# [0] is right number, [1] is total number
# for da
dt_rate = [0.0, 0.0]
dt_rate_session = [0.0, 0.0]
# for slot_value
sv_rate = [0.0, 0.0]
sv_rate_session = [0.0, 0.0]
# for mask
mask_rate = [0.0, 0.0]
mask_rate_session = [0.0, 0.0]
# for total
rate = [0.0, 0.0]
rate_session = [0.0, 0.0]
test_dir = config.test_path + str(config.task_id) + '/'
_time = str(datetime.datetime.now())
_time = _time.replace(':', '_')
_time = _time.replace(' ', '_')
_time = _time.replace('.', '_')
test_file = test_dir + _time + '.csv'
test_file = open(test_file, 'w+')
_config = tf.ConfigProto()
_config.gpu_options.allow_growth = True
if not config.device == '/cpu:0':
_config.allow_soft_placement = True
with tf.Session(config=_config) as sess:
loss_mask = [1.0, 0.0, 0.0, 0.0, 0.0]
saver = tf.train.Saver()
sess.run(tf.assign(model.embedding, config.embeddings))
sess.run(tf.assign(model.init_k_memory, config.slot_embedding))
sess.run(tf.assign(model.value_feature0, loader.value_feature))
for batch_index in range(config.batch_num):
ckpt = tf.train.get_checkpoint_state(config.save_path)
if ckpt and ckpt.model_checkpoint_path and batch_index == 0:
saver.restore(sess, ckpt.model_checkpoint_path)
print('\nmodel restored from {}'.format(
ckpt.model_checkpoint_path))
index, x, y, t, slot_mask, seq_lengths_mask, x_sen_len, y_sen_len, attn, attn_mask, \
raw_x, raw_y, _, _ = loader.next_batch()
print('\nbatch {} / {}'.format(batch_index, config.batch_num))
feed = {
model.input_x: x,
model.input_y: y,
model.targets: t,
model.masks: slot_mask,
model.seq_masks: seq_lengths_mask,
model.x_sentence_length: x_sen_len,
model.y_sentence_length: y_sen_len,
model.attention: attn,
model.attention_mask: attn_mask,
model.loss_mask: loss_mask
}
[prob, slot_prob, mask_result, attention_result] = sess.run([
model.prob, model.slot_prob, model.mask_result,
model.attention_result
], feed)
# calculate result and print result
for i in range(config.batch_size):
dt_session_right = True
sv_session_right = True
mask_session_right = True
test_file.write('session {}/{}\n'.format(
batch_index * config.batch_size + i,
config.batch_num * config.batch_size))
for j in range(config.seq_length):
sentence_right = True
if raw_y[i][j] == 0.0 or raw_x[i][j] == 0.0:
assert raw_y[i][j] == 0.0 or raw_x[i][j] == 0.0
break
# write x sentence
test_file.write('post: {},'.format(j))
test_file.write(
str(raw_x[i][j]).strip().replace(' ', ',') + '\n')
# write slot attention result
for m in range(config.slot_size):
slot = config.slots[m]
test_file.write('[{}],'.format(slot))
att_ = attention_result[i][j][m]
for n in range(config.sentence_length):
test_file.write('{:.3f},'.format(att_[n][0]))
test_file.write('\n')
# write y sentence
test_file.write('response: {},'.format(j))
test_file.write(
str(raw_y[i][j]).strip().replace(' ', ',') + '\n')
# split target
tars = np.split(t[i][j], config.numpy_split_sizes)
da_tar, sv_tar = tars[0], tars[1:config.slot_size + 1]
# write da_type information
da_index = np.argmax(da_tar)
da_index_prob = np.argmax(prob[i][j][0])
test_file.write(config.da_types[da_index] + ',' +
config.da_types[da_index_prob] + '\n')
# calculate datype acc
if da_index_prob != da_index:
dt_session_right = False
sentence_right = False
else:
dt_rate[0] += 1.0
dt_rate[1] += 1.0
# mask and slot_value
for m in range(config.slot_size):
slot = config.slots[m]
test_file.write('[{}],'.format(slot))
# write mask information
test_file.write('{:.3f},'.format(
slot_mask[i][j][m][0]))
test_file.write('{:.3f},'.format(
mask_result[i][j][m][0]))
# calculate mask acc
smm = np.argmax(slot_mask[i][j][m])
mrm = np.argmax(mask_result[i][j][m])
if mrm != smm:
mask_session_right = False
sentence_right = False
else:
mask_rate[0] += 1.0
mask_rate[1] += 1.0
# write slot value
value_index = np.argmax(sv_tar[m])
value_index_prob = np.argmax(slot_prob[i][j][m][0])
test_file.write(config.slot_value[slot][value_index] +
',')
test_file.write(
config.slot_value[slot][value_index_prob] + '\n')
# calculate slotvalue acc
if slot_mask[i][j][m][0] > 0.9:
if value_index != value_index_prob:
sv_session_right = False
sentence_right = False
else:
sv_rate[0] += 1.0
sv_rate[1] += 1.0
# calculate sentence acc
if sentence_right:
rate[0] += 1.0
rate[1] += 1.0
if dt_session_right:
dt_rate_session[0] += 1.0
dt_rate_session[1] += 1.0
if sv_session_right:
sv_rate_session[0] += 1.0
sv_rate_session[1] += 1.0
if mask_session_right:
mask_rate_session[0] += 1.0
mask_rate_session[1] += 1.0
if dt_session_right and sv_session_right and mask_session_right:
rate_session[0] += 1.0
rate_session[1] += 1.0
test_file.close()
test_file = test_dir + _time + '_final.csv'
with open(test_file, 'w+') as fout:
fout.write(', sentence, session\n')
fout.write('da type, {}, {}\n'.format(
dt_rate[0] / dt_rate[1], dt_rate_session[0] / dt_rate_session[1]))
fout.write('slot value, {}, {}\n'.format(
sv_rate[0] / sv_rate[1], sv_rate_session[0] / sv_rate_session[1]))
fout.write('mask, {}, {}\n'.format(
mask_rate[0] / mask_rate[1],
mask_rate_session[0] / mask_rate_session[1]))
fout.write('full, {}, {}\n'.format(rate[0] / rate[1],
rate_session[0] / rate_session[1]))
fout.close()
print('final result writt to {}'.format(test_file))
return
optimizer_rho = torch.optim.Adam(probrho.parameters(),
lr=args.lr,
amsgrad=True)
optimizer_traffic = torch.optim.Adam(probtraffic.parameters(),
lr=args.lr,
amsgrad=True)
optimizer_ttime = torch.optim.Adam(probttime.parameters(),
lr=args.lr,
amsgrad=True)
## Preparing the data
trainfiles = list(
filter(lambda x: x.endswith(".h5"), sorted(os.listdir(args.trainpath))))
validfiles = list(
filter(lambda x: x.endswith(".h5"), sorted(os.listdir(args.validpath))))
train_dataloader = DataLoader(args.trainpath)
print("Loading the training data...")
train_dataloader.read_files(trainfiles)
valid_dataloader = DataLoader(args.validpath)
print("Loading the validation data...")
valid_dataloader.read_files(validfiles)
train_slot_size = np.array(
list(map(lambda s: s.ntrips, train_dataloader.slotdata_pool)))
train_num_iterations = int(np.ceil(train_slot_size / args.batch_size).sum())
print("There are {} trips in the training dataset".format(
train_slot_size.sum()))
print("Number of iterations for an epoch: {}".format(train_num_iterations))
valid_slot_size = np.array(
list(map(lambda s: s.ntrips, valid_dataloader.slotdata_pool)))
valid_num_iterations = int(np.ceil(valid_slot_size / args.batch_size).sum())
import yaml
from data_utils import DataLoader
from training_utils import Trainer, TrainerConfig
import training_utils
from modeling import Model
if __name__ == '__main__':
with open("config/config.yaml", "r") as f:
config = yaml.safe_load(f)
model = Model(config)
args = getattr(training_utils, "baseline")
dl = DataLoader(args)
tr_dataset, val_dataset = dl.setup()
tr_dataset = dl.train_dataloader(tr_dataset)
val_dataset = dl.val_dataloader(val_dataset)
trainer = Trainer(model, args)
trainer.fit(tr_dataset, val_dataset)
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model = nn.DataParallel(TransformerTTS()).to(device)
print("Model Has Been Defined")
# Get dataset
dataset = TransformerTTSDataLoader()
# Optimizer and loss
optimizer = torch.optim.Adam(model.parameters(), lr=hp.learning_rate)
transformer_loss = TransformerTTSLoss().to(device)
# Get training loader
print("Get Training Loader")
training_loader = DataLoader(dataset,
batch_size=hp.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
num_workers=cpu_count())
try:
checkpoint = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
# optimizer.load_state_dict(checkpoint['optimizer'])
print("---Model Restored at Step %d---\n" % args.restore_step)
except:
print("---Start New Training---\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Init logger
if not os.path.exists("logger"):
os.mkdir("logger")
# Training
model = model.train()
total_step = hp.epochs * len(training_loader)
Time = np.array(list())
Start = time.clock()
for epoch in range(hp.epochs):
for i, data_of_batch in enumerate(training_loader):
start_time = time.clock()
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
optimizer.zero_grad()
# Prepare Data
src_seq = data_of_batch["texts"]
src_pos = data_of_batch["pos_padded"]
tgt_seq = data_of_batch["tgt_sep"]
tgt_pos = data_of_batch["tgt_pos"]
mel_tgt = data_of_batch["mels"]
gate_target = data_of_batch["gate_target"]
src_seq = torch.from_numpy(src_seq).long().to(device)
src_pos = torch.from_numpy(src_pos).long().to(device)
tgt_seq = torch.from_numpy(tgt_seq).long().to(device)
tgt_pos = torch.from_numpy(tgt_pos).long().to(device)
mel_tgt = torch.from_numpy(mel_tgt).float().to(device)
gate_target = torch.from_numpy(gate_target).float().to(device)
# Forward
mel_output, mel_output_postnet, stop_token = model(
src_seq, src_pos, tgt_seq, tgt_pos, mel_tgt)
# Cal Loss
mel_loss, mel_postnet_loss, gate_loss = transformer_loss(
mel_output, mel_output_postnet, stop_token, mel_tgt,
gate_target)
total_mel_loss = mel_loss + mel_postnet_loss
total_loss = total_mel_loss + gate_loss
# Logger
t_m_l = total_mel_loss.item()
m_l = mel_loss.item()
m_p_l = mel_postnet_loss.item()
g_l = gate_loss.item()
with open(os.path.join("logger", "total_mel_loss.txt"),
"a") as f_total_loss:
f_total_loss.write(str(t_m_l) + "\n")
with open(os.path.join("logger", "mel_loss.txt"),
"a") as f_mel_loss:
f_mel_loss.write(str(m_l) + "\n")
with open(os.path.join("logger", "mel_postnet_loss.txt"),
"a") as f_mel_postnet_loss:
f_mel_postnet_loss.write(str(m_p_l) + "\n")
with open(os.path.join("logger", "gate_loss.txt"),
"a") as f_gate_loss:
f_gate_loss.write(str(g_l) + "\n")
# Backward
total_loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), hp.grad_clip_thresh)
# Update weights
optimizer.step()
# Print
if current_step % hp.log_step == 0:
Now = time.clock()
str1 = "Epoch [{}/{}], Step [{}/{}], Mel Loss: {:.4f}, Mel PostNet Loss: {:.4f}, Gate Loss: {:.4f}, Total Loss: {:.4f}.".format(
epoch + 1, hp.epochs, current_step, total_step,
mel_loss.item(), mel_postnet_loss.item(), gate_loss.item(),
total_loss.item())
str2 = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start), (total_step - current_step) * np.mean(Time))
print(str1)
print(str2)
with open(os.path.join("logger", "logger.txt"),
"a") as f_logger:
f_logger.write(str1 + "\n")
f_logger.write(str2 + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save(
{
'model': model.state_dict(),
'optimizer': optimizer.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % current_step))
print("save model at step %d ..." % current_step)
if current_step in hp.decay_step:
optimizer = adjust_learning_rate(optimizer, current_step)
end_time = time.clock()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(Time, [i for i in range(len(Time))],
axis=None)
Time = np.append(Time, temp_value)
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model = nn.DataParallel(BERT_Tacotron2(hp)).to(device)
# model = Tacotron2(hp).to(device)
print("Model Have Been Defined")
num_param = sum(param.numel() for param in model.parameters())
print('Number of Tacotron Parameters:', num_param)
# Get dataset
dataset = BERTTacotron2Dataset()
# Optimizer
optimizer = torch.optim.Adam(model.parameters(),
lr=hp.learning_rate,
weight_decay=hp.weight_decay)
# Criterion
criterion = Tacotron2Loss()
# Load checkpoint if exists
try:
checkpoint = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
print("\n---Model Restored at Step %d---\n" % args.restore_step)
except:
print("\n---Start New Training---\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Init logger
if not os.path.exists(hp.logger_path):
os.mkdir(hp.logger_path)
# Define Some Information
Time = np.array([])
Start = time.clock()
# Training
model = model.train()
for epoch in range(hp.epochs):
# Get training loader
training_loader = DataLoader(dataset,
batch_size=hp.batch_size**2,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
num_workers=0)
total_step = hp.epochs * len(training_loader) * hp.batch_size
for i, batchs in enumerate(training_loader):
for j, data_of_batch in enumerate(batchs):
start_time = time.clock()
current_step = i * hp.batch_size + j + args.restore_step + \
epoch * len(training_loader)*hp.batch_size + 1
# Init
optimizer.zero_grad()
# Get Data
character = torch.from_numpy(
data_of_batch["text"]).long().to(device)
mel_target = torch.from_numpy(
data_of_batch["mel_target"]).float().to(
device).contiguous().transpose(1, 2)
stop_target = torch.from_numpy(
data_of_batch["stop_token"]).float().to(device)
embeddings = data_of_batch["bert_embeddings"].float().to(
device)
input_lengths = torch.from_numpy(
data_of_batch["length_text"]).long().to(device)
output_lengths = torch.from_numpy(
data_of_batch["length_mel"]).long().to(device)
# Forward
batch = character, input_lengths, mel_target, stop_target, output_lengths, embeddings
x, y = model.module.parse_batch(batch)
y_pred = model(x)
# Cal Loss
mel_loss, mel_postnet_loss, stop_pred_loss = criterion(
y_pred, y)
total_loss = mel_loss + mel_postnet_loss + stop_pred_loss
# Logger
t_l = total_loss.item()
m_l = mel_loss.item()
m_p_l = mel_postnet_loss.item()
s_l = stop_pred_loss.item()
with open(os.path.join("logger", "total_loss.txt"),
"a") as f_total_loss:
f_total_loss.write(str(t_l) + "\n")
with open(os.path.join("logger", "mel_loss.txt"),
"a") as f_mel_loss:
f_mel_loss.write(str(m_l) + "\n")
with open(os.path.join("logger", "mel_postnet_loss.txt"),
"a") as f_mel_postnet_loss:
f_mel_postnet_loss.write(str(m_p_l) + "\n")
with open(os.path.join("logger", "stop_pred_loss.txt"),
"a") as f_s_loss:
f_s_loss.write(str(s_l) + "\n")
# Backward
total_loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), 1.)
# Update weights
optimizer.step()
adjust_learning_rate(optimizer, current_step)
# Print
if current_step % hp.log_step == 0:
Now = time.clock()
str1 = "Epoch [{}/{}], Step [{}/{}], Mel Loss: {:.4f}, Mel PostNet Loss: {:.4f};".format(
epoch + 1, hp.epochs, current_step, total_step,
mel_loss.item(), mel_postnet_loss.item())
str2 = "Stop Predicted Loss: {:.4f}, Total Loss: {:.4f}.".format(
stop_pred_loss.item(), total_loss.item())
str3 = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start),
(total_step - current_step) * np.mean(Time))
print("\n" + str1)
print(str2)
print(str3)
with open(os.path.join("logger", "logger.txt"),
"a") as f_logger:
f_logger.write(str1 + "\n")
f_logger.write(str2 + "\n")
f_logger.write(str3 + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save(
{
'model': model.state_dict(),
'optimizer': optimizer.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % current_step))
print("save model at step %d ..." % current_step)
end_time = time.clock()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(Time, [i for i in range(len(Time))],
axis=None)
Time = np.append(Time, temp_value)
times = data.times.to(device)
loss = log_prob_loss(logμ, logλ, times)
total_loss += loss.item() * data.trips.shape[0]
total_mse += F.mse_loss(torch.exp(logμ), times).item() * data.trips.shape[0]
total_l1 += F.l1_loss(torch.exp(logμ), times).item() * data.trips.shape[0]
mean_loss = total_loss / np.sum(test_slot_size)
mean_mse = total_mse / np.sum(test_slot_size)
mean_l1 = total_l1 / np.sum(test_slot_size)
print("Testing Loss {0:.4f} MSE {1:.4f} L1 {2:.4f}".format(mean_loss, mean_mse, mean_l1))
return mean_loss, mean_mse
probrho, probtraffic, probttime = load_model(args.model)
probrho.eval()
probtraffic.eval()
probttime.eval()
testfiles = list(filter(lambda x:x.endswith(".h5"),
sorted(os.listdir(args.testpath))))
test_dataloader = DataLoader(args.testpath)
print("Loading the testing data...")
test_dataloader.read_files(testfiles)
test_slot_size = np.array(list(map(lambda s:s.ntrips, test_dataloader.slotdata_pool)))
print("There are {} trips in total".format(test_slot_size.sum()))
test_num_iterations = int(np.ceil(test_slot_size/args.batch_size).sum())
tic = time.time()
with torch.no_grad():
validate(test_num_iterations, probrho, probtraffic, probttime)
print("Time passed: {} seconds".format(time.time() - tic))
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model = SpeakerEncoder().to(device)
GE2E_loss = GE2ELoss()
print("Model Have Been Defined")
# Get dataset
dataset = SVData()
# Optimizer
optimizer = torch.optim.SGD([{
'params': model.parameters()
}, {
'params': GE2E_loss.parameters()
}],
lr=hp.learning_rate)
# Get training loader
training_loader = DataLoader(dataset,
batch_size=hp.N,
shuffle=True,
drop_last=True,
collate_fn=collate_fn,
num_workers=cpu_count())
print("Get Training Loader")
# Load checkpoint if exists
try:
checkpoint = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
print("\n---Model Restored at Step %d---\n" % args.restore_step)
except:
print("\n---Start New Training---\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Define Some Information
total_step = hp.epochs * len(training_loader)
Time = np.array([])
Start = time.perf_counter()
# Training
model = model.train()
for epoch in range(hp.epochs):
for i, batch in enumerate(training_loader):
start_time = time.perf_counter()
# Count step
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
optimizer.zero_grad()
# Load Data
# ====================================================== #
# batch: (hp.N * hp.M, hp.tisv_frame, hp.n_mels_channel) #
# ====================================================== #
batch = torch.from_numpy(batch).float().to(device)
embeddings = model(batch)
# Loss
embeddings = embeddings.contiguous().view(hp.N, hp.M, -1)
loss = GE2E_loss(embeddings)
# Backward
loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), 3.0)
nn.utils.clip_grad_norm_(GE2E_loss.parameters(), 1.0)
# Update weights
optimizer.step()
if current_step % hp.log_step == 0:
Now = time.perf_counter()
str_loss = "Epoch [{}/{}], Step [{}/{}], Loss: {:.4f}.".format(
epoch + 1, hp.epochs, current_step, total_step,
loss.item())
str_time = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start), (total_step - current_step) * np.mean(Time))
print(str_loss)
print(str_time)
with open("logger.txt", "a") as f_logger:
f_logger.write(str_loss + "\n")
f_logger.write(str_time + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save(
{
'model': model.state_dict(),
'optimizer': optimizer.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % current_step))
print("\nsave model at step %d ...\n" % current_step)
end_time = time.perf_counter()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(Time, [i for i in range(len(Time))],
axis=None)
Time = np.append(Time, temp_value)
def train():
if args.load_model:
hparams_file_name = os.path.join(args.output_dir, "hparams.pt")
hparams = torch.load(hparams_file_name)
else:
hparams = Iwslt16EnDeBpe32SharedParams(
data_path=args.data_path,
source_train=args.source_train,
target_train=args.target_train,
source_valid=args.source_valid,
target_valid=args.target_valid,
source_vocab=args.source_vocab,
target_vocab=args.target_vocab,
source_test=args.source_test,
target_test=args.target_test,
max_len=args.max_len,
n_train_sents=args.n_train_sents,
cuda=args.cuda,
d_word_vec=args.d_word_vec,
d_model=args.d_model,
d_inner=args.d_inner,
d_k=args.d_k,
d_v=args.d_v,
n_layers=args.n_layers,
n_heads=args.n_heads,
batch_size=args.batch_size,
batcher=args.batcher,
n_train_steps=args.n_train_steps,
n_warm_ups=args.n_warm_ups,
share_emb_and_softmax=args.share_emb_and_softmax,
dropout=args.dropout,
label_smoothing=args.label_smoothing,
grad_bound=args.grad_bound,
init_range=args.init_range,
optim_switch=args.optim_switch,
lr_adam=args.lr_adam,
lr_sgd=args.lr_sgd,
lr_dec=args.lr_dec,
l2_reg=args.l2_reg,
loss_norm=args.loss_norm,
init_type=args.init_type,
pos_emb_size=args.pos_emb_size,
raml_source=args.raml_source,
raml_target=args.raml_target,
raml_tau=args.raml_tau,
raml_src_tau=args.raml_src_tau,
src_pad_corrupt=args.src_pad_corrupt,
trg_pad_corrupt=args.trg_pad_corrupt,
dist_corrupt=args.dist_corrupt,
dist_corrupt_tau=args.dist_corrupt_tau,
glove_emb_file=args.glove_emb_file,
glove_emb_dim=args.glove_emb_dim,
max_glove_vocab_size=args.max_glove_vocab_size,
)
data = DataLoader(hparams=hparams)
hparams.add_param("source_vocab_size", data.source_vocab_size)
hparams.add_param("target_vocab_size", data.target_vocab_size)
hparams.add_param("pad_id", data.pad_id)
hparams.add_param("unk_id", data.unk_id)
hparams.add_param("bos_id", data.bos_id)
hparams.add_param("eos_id", data.eos_id)
hparams.add_param("l2_reg", args.l2_reg)
hparams.add_param("n_train_steps", args.n_train_steps)
# build or load model model
print("-" * 80)
print("Creating model")
if args.load_model:
model_file_name = os.path.join(args.output_dir, "model.pt")
print("Loading model from '{0}'".format(model_file_name))
model = torch.load(model_file_name)
else:
print("Initialize with {}".format(hparams.init_type))
model = Transformer(hparams=hparams, init_type=hparams.init_type)
crit = get_criterion(hparams)
trainable_params = [
p for p in model.trainable_parameters() if p.requires_grad
]
num_params = count_params(trainable_params)
print("Model has {0} params".format(num_params))
# build or load optimizer
if args.optim == 'adam':
print("Using adam optimizer...")
optim = torch.optim.Adam(trainable_params,
lr=hparams.lr_adam,
weight_decay=hparams.l2_reg)
else:
print("Using sgd optimizer...")
optim = torch.optim.SGD(trainable_params,
lr=hparams.lr_sgd,
weight_decay=hparams.l2_reg)
print("Using transformer lr schedule: {}".format(args.lr_schedule))
if args.load_model:
optim_file_name = os.path.join(args.output_dir, "optimizer.pt")
print("Loading optim from '{0}'".format(optim_file_name))
optimizer_state = torch.load(optim_file_name)
optim.load_state_dict(optimizer_state)
try:
extra_file_name = os.path.join(args.output_dir, "extra.pt")
if args.checkpoint > 0:
(step, best_val_ppl, best_val_bleu, cur_attempt, lr,
checkpoint_queue) = torch.load(extra_file_name)
else:
(step, best_val_ppl, best_val_bleu, cur_attempt,
lr) = torch.load(extra_file_name)
except:
raise RuntimeError("Cannot load checkpoint!")
else:
optim = torch.optim.Adam(trainable_params,
lr=hparams.lr_adam,
weight_decay=hparams.l2_reg)
step = 0
best_val_ppl = 1e10
best_val_bleu = 0
cur_attempt = 0
lr = hparams.lr_adam
if args.checkpoint > 0:
checkpoint_queue = deque(
["checkpoint_" + str(i) for i in range(args.checkpoint)])
if not type(best_val_ppl) == dict:
best_val_ppl = {}
best_val_bleu = {}
if args.save_nbest > 1:
for i in range(args.save_nbest):
best_val_ppl['model' + str(i)] = 1e10
best_val_bleu['model' + str(i)] = 0
else:
best_val_ppl['model'] = 1e10
best_val_bleu['model'] = 0
set_patience = args.patience >= 0
# train loop
print("-" * 80)
print("Start training")
ppl_thresh = args.ppl_thresh
start_time = time.time()
actual_start_time = time.time()
target_words, total_loss, total_corrects = 0, 0, 0
n_train_batches = data.n_train_batches
while True:
# training activities
model.train()
while True:
# next batch
if hparams.raml_source and hparams.raml_target:
((x_train_raml, x_train, x_mask, x_pos_emb_indices, x_count),
(y_train_raml, y_train, y_mask, y_pos_emb_indices,
y_count), batch_size) = data.next_train()
elif hparams.raml_source:
((x_train_raml, x_train, x_mask, x_pos_emb_indices,
x_count), (y_train, y_mask, y_pos_emb_indices, y_count),
batch_size) = data.next_train()
elif hparams.raml_target:
((x_train, x_mask, x_pos_emb_indices, x_count),
(y_train_raml, y_train, y_mask, y_pos_emb_indices,
y_count), batch_size) = data.next_train()
else:
((x_train, x_mask, x_pos_emb_indices,
x_count), (y_train, y_mask, y_pos_emb_indices, y_count),
batch_size) = data.next_train()
# book keeping count
# Since you are shifting y_train, i.e. y_train[:, :-1] and y_train[:, 1:]
y_count -= batch_size
target_words += y_count
# forward pass
optim.zero_grad()
if hparams.raml_source and hparams.raml_target:
logits = model.forward(x_train_raml, x_mask, x_pos_emb_indices,
y_train_raml[:, :-1], y_mask[:, :-1],
y_pos_emb_indices[:, :-1].contiguous())
elif hparams.raml_source:
logits = model.forward(x_train_raml, x_mask, x_pos_emb_indices,
y_train[:, :-1], y_mask[:, :-1],
y_pos_emb_indices[:, :-1].contiguous())
elif hparams.raml_target:
logits = model.forward(x_train, x_mask, x_pos_emb_indices,
y_train_raml[:, :-1], y_mask[:, :-1],
y_pos_emb_indices[:, :-1].contiguous())
else:
logits = model.forward(x_train, x_mask, x_pos_emb_indices,
y_train[:, :-1], y_mask[:, :-1],
y_pos_emb_indices[:, :-1].contiguous())
logits = logits.view(-1, hparams.target_vocab_size)
if hparams.raml_target:
labels = y_train_raml[:, 1:].contiguous().view(-1)
else:
labels = y_train[:, 1:].contiguous().view(-1)
tr_loss, tr_acc = get_performance(crit, logits, labels, hparams)
total_loss += tr_loss.data[0]
total_corrects += tr_acc.data[0]
# normalizing tr_loss
if hparams.loss_norm == "sent":
loss_div = batch_size
elif hparams.loss_norm == "word":
assert y_count == (1 - y_mask[:, 1:].int()).sum()
loss_div = y_count
else:
raise ValueError("Unknown batcher '{0}'".format(
hparams.batcher))
# set learning rate
if args.lr_schedule:
s = step + 1
lr = pow(hparams.d_model, -0.5) * min(
pow(s, -0.5), s * pow(hparams.n_warm_ups, -1.5))
else:
if step < hparams.n_warm_ups:
if hparams.optim_switch is not None and step < hparams.optim_switch:
base_lr = hparams.lr_adam
else:
base_lr = hparams.lr_sgd
lr = base_lr * (step + 1) / hparams.n_warm_ups
tr_loss.div_(loss_div).backward()
set_lr(optim, lr)
grad_norm = grad_clip(trainable_params,
grad_bound=hparams.grad_bound)
optim.step()
step += 1
if step % args.log_every == 0:
epoch = step // data.n_train_batches
curr_time = time.time()
since_start = (curr_time - start_time) / 60.0
elapsed = (curr_time - actual_start_time) / 60.0
log_string = "ep={0:<3d}".format(epoch)
log_string += " steps={0:<6.2f}".format(step / 1000)
log_string += " lr={0:<9.7f}".format(lr)
log_string += " loss={0:<7.2f}".format(tr_loss.data[0])
log_string += " |g|={0:<6.2f}".format(grad_norm)
log_string += " ppl={0:<8.2f}".format(
np.exp(total_loss / target_words))
log_string += " acc={0:<5.4f}".format(total_corrects /
target_words)
log_string += " wpm(K)={0:<5.2f}".format(target_words /
(1000 * elapsed))
log_string += " mins={0:<5.2f}".format(since_start)
print(log_string)
if step == hparams.optim_switch:
lr = hparams.lr_sgd
print(("Reached {0} steps. Switching from Adam to SGD "
"with learning_rate {1:<9.7f}").format(step, lr))
optim = torch.optim.SGD(trainable_params,
lr=hparams.lr_sgd,
weight_decay=hparams.l2_reg)
# clean up GPU memory
if step % args.clean_mem_every == 0:
gc.collect()
# eval
if step % args.eval_every == 0:
val_ppl, val_bleu = eval(
model,
data,
crit,
step,
hparams,
min(best_val_ppl.values()) < ppl_thresh,
valid_batch_size=args.valid_batch_size)
# determine whether to update best_val_ppl or best_val_bleu
based_on_bleu = args.eval_bleu and (min(best_val_ppl.values())
< ppl_thresh)
if based_on_bleu:
if min(best_val_bleu.values()) <= val_bleu:
save_model_name = min(best_val_bleu,
key=best_val_bleu.get)
best_val_bleu[save_model_name] = val_bleu
save = True
else:
save = False
else:
if max(best_val_ppl.values()) >= val_ppl:
save_model_name = max(best_val_ppl,
key=best_val_ppl.get)
best_val_ppl[save_model_name] = val_ppl
save = True
else:
save = False
if args.checkpoint > 0:
cur_name = checkpoint_queue.popleft()
checkpoint_queue.append(cur_name)
print("Saving checkpoint to {}".format(cur_name))
torch.save(model, os.path.join(args.output_dir, cur_name))
if save:
save_extra = [
step, best_val_ppl, best_val_bleu, cur_attempt, lr
]
if args.checkpoint > 0:
save_extra.append(cur_name)
save_checkpoint(save_extra, model, optim, hparams,
args.output_dir, save_model_name)
cur_attempt = 0
else:
lr /= hparams.lr_dec
cur_attempt += 1
actual_start_time = time.time()
target_words = 0
total_loss = 0
total_corrects = 0
if set_patience:
if cur_attempt >= args.patience: break
else:
if step >= hparams.n_train_steps: break
# stop if trained for more than n_train_steps
stop = False
if set_patience and cur_attempt >= args.patience:
stop = True
elif not set_patience and step > hparams.n_train_steps:
stop = True
if stop:
print("Reach {0} steps. Stop training".format(step))
based_on_bleu = args.eval_bleu and (min(best_val_ppl.values()) <
ppl_thresh)
if based_on_bleu:
if min(best_val_bleu.values()) <= val_bleu:
save_model_name = min(best_val_bleu, key=best_val_bleu.get)
best_val_bleu[save_model_name] = val_bleu
save = True
else:
save = False
else:
if max(best_val_ppl) >= val_ppl:
save_model_name = max(best_val_ppl, key=best_val_ppl.get)
best_val_ppl[save_model_name] = val_ppl
save = True
else:
save = False
if save:
save_checkpoint(
[step, best_val_ppl, best_val_bleu, cur_attempt, lr],
model, optim, hparams, args.output_dir, save_model_name)
break
if __name__ == "__main__":
# Test
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
torch.manual_seed(hp.seed)
torch.cuda.manual_seed(hp.seed)
model = WaveGlow().cuda()
checkpoint = torch.load('test/TTSglow_130000')
model.load_state_dict(checkpoint['model'].state_dict())
dataset = FastSpeechDataset()
testing_loader = DataLoader(dataset,
batch_size=1,
shuffle=False,
collate_fn=collate_fn,
drop_last=True,
num_workers=4)
model = model.eval()
for i, data_of_batch in enumerate(testing_loader):
src_seq = data_of_batch["texts"]
src_pos = data_of_batch["pos"]
src_seq = torch.from_numpy(src_seq).long().to(device)
src_pos = torch.from_numpy(src_pos).long().to(device)
mel = model.inference(src_seq, src_pos, sigma=1.0, alpha=1.0)
mel = mel.squeeze()
print(mel.size())
mel_path = os.path.join("results", "{}_synthesis.pt".format(i))
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model_SE = SpeakerEncoder().to(device)
model_SV = SpeakerVerification().to(device)
GE2E_loss = GE2ELoss()
SV_loss = nn.CrossEntropyLoss()
print("Models and Loss Have Been Defined")
# Optimizer
optimizer_SE = torch.optim.SGD([{
'params': model_SE.parameters()
}, {
'params': GE2E_loss.parameters()
}],
lr=hp.learning_rate)
optimizer_SV = torch.optim.Adam(model_SV.parameters(), lr=1e-3)
# Load checkpoint if exists
try:
checkpoint_SE = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_SE_%d.pth.tar' % args.restore_step))
model_SE.load_state_dict(checkpoint_SE['model'])
optimizer_SE.load_state_dict(checkpoint_SE['optimizer'])
checkpoint_SV = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_SV_%d.pth.tar' % args.restore_step))
model_SV.load_state_dict(checkpoint_SV['model'])
optimizer_SV.load_state_dict(checkpoint_SV['optimizer'])
print("\n---Model Restored at Step %d---\n" % args.restore_step)
except:
print("\n---Start New Training---\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# # Change Learning Rate
# learning_rate = 0.005
# for param_group in optimizer_SE.param_groups:
# param_group['lr'] = learning_rate
# Get dataset
dataset = SVData()
# Get training loader
training_loader = DataLoader(dataset,
batch_size=hp.N,
shuffle=True,
drop_last=True,
collate_fn=collate_fn,
num_workers=cpu_count())
# Define Some Information
total_step = hp.epochs * len(training_loader)
Time = np.array([])
Start = time.perf_counter()
# Training
model_SE = model_SE.train()
model_SV = model_SV.train()
for epoch in range(hp.epochs):
dataset = SVData()
training_loader = DataLoader(dataset,
batch_size=hp.N,
shuffle=True,
drop_last=True,
collate_fn=collate_fn,
num_workers=cpu_count())
for i, batch in enumerate(training_loader):
start_time = time.perf_counter()
# Count step
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
optimizer_SE.zero_grad()
optimizer_SV.zero_grad()
# Load Data
mels, lengths, target = batch
mels = torch.from_numpy(mels).float().to(device)
target = torch.Tensor(target).long().to(device)
# Forward
speaker_embeddings = model_SE(mels, lengths)
speaker_embeddings_ = torch.Tensor(
speaker_embeddings.cpu().data).to(device)
out = model_SV(speaker_embeddings_)
# Loss
speaker_embeddings = speaker_embeddings.contiguous().view(
hp.N, hp.M, -1)
ge2e_loss = GE2E_loss(speaker_embeddings)
classify_loss = SV_loss(out, target)
# Backward
ge2e_loss.backward()
classify_loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model_SE.parameters(), 3.0)
nn.utils.clip_grad_norm_(GE2E_loss.parameters(), 1.0)
# Update weights
optimizer_SE.step()
optimizer_SV.step()
if current_step % hp.log_step == 0:
Now = time.perf_counter()
str_loss = "Epoch [{}/{}], Step [{}/{}], GE2E Loss: {:.4f}, Classify Loss: {:.4f}.".format(
epoch + 1, hp.epochs, current_step, total_step,
ge2e_loss.item(), classify_loss.item())
str_time = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start), (total_step - current_step) * np.mean(Time))
print(str_loss)
print(str_time)
with open("logger.txt", "a") as f_logger:
f_logger.write(str_loss + "\n")
f_logger.write(str_time + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save(
{
'model': model_SE.state_dict(),
'optimizer': optimizer_SE.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_SE_%d.pth.tar' % current_step))
torch.save(
{
'model': model_SV.state_dict(),
'optimizer': optimizer_SV.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_SV_%d.pth.tar' % current_step))
print("\nsave model at step %d ...\n" % current_step)
end_time = time.perf_counter()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(Time, [i for i in range(len(Time))],
axis=None)
Time = np.append(Time, temp_value)
def train(num_gpus, rank, group_name, output_directory, log_directory,
checkpoint_path):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
torch.manual_seed(hp.seed)
torch.cuda.manual_seed(hp.seed)
#=====START: ADDED FOR DISTRIBUTED======
if num_gpus > 1:
init_distributed(rank, num_gpus, group_name, **dist_config)
#=====END: ADDED FOR DISTRIBUTED======
criterion = WaveGlowLoss(hp.sigma)
model = WaveGlow().cuda()
#=====START: ADDED FOR DISTRIBUTED======
if num_gpus > 1:
model = apply_gradient_allreduce(model)
#=====END: ADDED FOR DISTRIBUTED======
learning_rate = hp.learning_rate
optimizer = torch.optim.Adam(model.parameters(), lr=learning_rate)
if hp.fp16_run:
from apex import amp
model, optimizer = amp.initialize(model, optimizer, opt_level='O1')
# Load checkpoint if one exists
iteration = 0
if checkpoint_path:
model, optimizer, iteration = load_checkpoint(checkpoint_path, model,
optimizer)
iteration += 1 # next iteration is iteration + 1
# Get dataset
dataset = FastSpeechDataset()
# Get training loader
print("Get Training Loader")
training_loader = DataLoader(dataset,
batch_size=hp.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
num_workers=cpu_count())
if rank == 0:
if not os.path.isdir(output_directory):
os.makedirs(output_directory)
os.chmod(output_directory, 0o775)
print("output directory", output_directory)
if hp.with_tensorboard and rank == 0:
logger = prepare_directories_and_logger(output_directory,
log_directory)
model = model.train()
epoch_offset = max(0, int(iteration / len(training_loader)))
beta = hp.batch_size
print("Total Epochs: {}".format(hp.epochs))
print("Batch Size: {}".format(hp.batch_size))
# ================ MAIN TRAINNIG LOOP! ===================
for epoch in range(epoch_offset, hp.epochs):
print("Epoch: {}".format(epoch))
for i, data_of_batch in enumerate(training_loader):
model.zero_grad()
if not hp.pre_target:
# Prepare Data
src_seq = data_of_batch["texts"]
src_pos = data_of_batch["pos"]
mel_tgt = data_of_batch["mels"]
src_seq = torch.from_numpy(src_seq).long().to(device)
src_pos = torch.from_numpy(src_pos).long().to(device)
mel_tgt = torch.from_numpy(mel_tgt).float().to(device)
alignment_target = get_alignment(src_seq,
tacotron2).float().to(device)
# For Data Parallel
mel_max_len = mel_tgt.size(1)
else:
# Prepare Data
src_seq = data_of_batch["texts"]
src_pos = data_of_batch["pos"]
mel_tgt = data_of_batch["mels"]
alignment_target = data_of_batch["alignment"]
src_seq = torch.from_numpy(src_seq).long().to(device)
src_pos = torch.from_numpy(src_pos).long().to(device)
mel_tgt = torch.from_numpy(mel_tgt).float().to(device)
alignment_target = torch.from_numpy(
alignment_target).float().to(device)
# For Data Parallel
mel_max_len = mel_tgt.size(1)
outputs = model(src_seq, src_pos, mel_tgt, mel_max_len,
alignment_target)
_, _, _, duration_predictor = outputs
mel_tgt = mel_tgt.transpose(1, 2)
max_like, dur_loss = criterion(outputs, alignment_target, mel_tgt)
if beta > 1 and iteration % 10000 == 0:
beta = beta // 2
loss = max_like + dur_loss
if num_gpus > 1:
reduced_loss = reduce_tensor(loss.data, num_gpus).item()
else:
reduced_loss = loss.item()
if hp.fp16_run:
with amp.scale_loss(loss, optimizer) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
#grad_norm = torch.nn.utils.clip_grad_norm_(model.parameters(), hp.grad_clip_thresh)
optimizer.step()
print("{}:\t{:.9f}".format(iteration, reduced_loss))
if hp.with_tensorboard and rank == 0:
logger.log_training(reduced_loss, dur_loss, learning_rate,
iteration)
if (iteration % hp.save_step == 0):
if rank == 0:
# logger.log_alignment(model, mel_predict, mel_tgt, iteration)
checkpoint_path = "{}/TTSglow_{}".format(
output_directory, iteration)
save_checkpoint(model, optimizer, learning_rate, iteration,
checkpoint_path)
iteration += 1
self.targets: y
}))
print("targets",
self.targets.eval({
self.inputs: x,
self.targets: y
}))
print("logits",
self.logits.eval({
self.inputs: x,
self.targets: y
}))
print("prob",
self.prob.eval({
self.inputs: x,
self.targets: y
}))
print("prob1",
self.prob1.eval({
self.inputs: x,
self.targets: y
}))
if step == 7810:
break
if __name__ == '__main__':
dt = DataLoader(r"D:\python project\text_classification\aclImdb",
'glove_data', 50, 'trimmed.npz')
m = Model(dt, 10, 100, 200)
m.train()
hparams.add_param("pad_id", model.hparams.pad_id)
hparams.add_param("bos_id", model.hparams.bos_id)
hparams.add_param("eos_id", model.hparams.eos_id)
hparams.add_param("unk_id", model.hparams.unk_id)
model.hparams.cuda = hparams.cuda
if not hasattr(model.hparams, "parent_feed"):
model.hparams.parent_feed = 1
if not hasattr(model.hparams, "rule_parent_feed"):
model.hparams.rule_parent_feed = 1
model.hparams.root_label = args.root_label
model.hparams.ignore_rule_len = args.ignore_rule_len
model.hparams.nbest = args.nbest
model.hparams.force_rule = args.force_rule
model.hparams.force_rule_step = args.force_rule_step
data = DataLoader(hparams=hparams, decode=True)
filts = [model.hparams.pad_id, model.hparams.eos_id, model.hparams.bos_id]
if args.ccg_tag_file:
ccg_tag_file = os.path.join(args.data_path, args.ccg_tag_file)
with open(ccg_tag_file, 'r') as tag_file:
for line in tag_file:
line = line.strip()
if line in data.target_word_to_index:
f_id = data.target_word_to_index[line]
filts.append(f_id)
hparams.add_param("filtered_tokens", set(filts))
if args.debug:
hparams.add_param("target_word_vocab_size", data.target_word_vocab_size)
hparams.add_param("target_rule_vocab_size", data.target_rule_vocab_size)
crit = get_criterion(hparams)
class HREDChatbot(object):
def __init__(self):
print(" # Welcome to HRED Chatbot.")
print(" # Tensorflow detected: v{}".format(tf.__version__))
print()
self.config = HConfig()
self.dataloader = DataLoader(self.config.num_utterance,
self.config.max_length,
self.config.split_ratio,
self.config.batch_size)
self.word_to_id = self.dataloader.word_to_id
self.id_to_word = self.dataloader.id_to_word
self.config.vocab_size = self.dataloader.vocab_size
self.config.SOS_ID = self.dataloader.SOS_ID
self.config.EOS_ID = self.dataloader.EOS_ID
self.model = Model(self.config)
print()
print(" # Parameter Size: {}".format(self.model.get_parameter_size()))
print()
### session
self.sess = tf.Session()
self.config.checkpoint_dir = os.path.join(
"save", self.model.__class__.__name__)
print(" # Save directory: {}".format(self.config.checkpoint_dir))
def main(self):
if FLAGS.mode == "train":
ckpt = tf.train.get_checkpoint_state(self.config.checkpoint_dir)
if ckpt and tf.train.checkpoint_exists(
ckpt.model_checkpoint_path) and (not FLAGS.retrain):
print(" # Restoring model parameters from %s." %
ckpt.model_checkpoint_path)
self.model.saver.restore(self.sess, ckpt.model_checkpoint_path)
else:
print(" # Creating model with fresh parameters.")
self.sess.run(self.model.init_op)
self.train_model(self.sess)
elif FLAGS.mode == "evaluate":
ckpt = tf.train.get_checkpoint_state(self.config.checkpoint_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
print(" # Restoring model parameters from %s." %
ckpt.model_checkpoint_path)
self.model.saver.restore(self.sess, ckpt.model_checkpoint_path)
self.evaluate_model(self.sess)
self.evaluate_embedding(self.sess)
elif FLAGS.mode == "embedding":
ckpt = tf.train.get_checkpoint_state(self.config.checkpoint_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
print(" # Restoring model parameters from %s." %
ckpt.model_checkpoint_path)
self.model.saver.restore(self.sess, ckpt.model_checkpoint_path)
self.evaluate_embedding(self.sess)
elif FLAGS.mode == "generate":
ckpt = tf.train.get_checkpoint_state(self.config.checkpoint_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
print(" # Restoring model parameters from %s." %
ckpt.model_checkpoint_path)
self.model.saver.restore(self.sess, ckpt.model_checkpoint_path)
self.generate(self.sess)
def train_model(self, sess):
best_result_loss = 1000.0
for epoch in range(self.config.num_epoch):
print()
print("---- epoch: {}/{} | lr: {} ----".format(
epoch, self.config.num_epoch, sess.run(self.model.lr)))
tic = datetime.datetime.now()
train_iterator = self.dataloader.train_generator()
test_iterator = self.dataloader.test_generator()
train_batch_num = self.dataloader.train_batch_num
test_batch_num = self.dataloader.test_batch_num
total_loss = 0.0
nll_loss = 0.0
word_error_rate = 0.0
count = 0
last_nll_loss = 0.0
last_word_error_rate = 0.0
for (enc_inp, dec_inp, dec_tar) in tqdm(train_iterator,
desc="training"):
train_out = self.model.train_session(sess, enc_inp, dec_inp,
dec_tar)
count += 1
step = train_out["step"]
total_loss += train_out["total_loss"]
nll_loss += train_out["nll_loss"]
word_error_rate += train_out["word_error_rate"]
last_nll_loss += train_out["last_nll_loss"]
last_word_error_rate += train_out["last_word_error_rate"]
if step % 50 == 0:
cur_loss = total_loss / count
cur_word_error_rate = word_error_rate / count
cur_last_word_error_rate = last_word_error_rate / count
cur_nll_loss = nll_loss / count
cur_last_nll_loss = last_nll_loss / count
cur_perplexity = math.exp(float(
cur_nll_loss)) if cur_nll_loss < 300 else float("inf")
cur_last_perplexity = math.exp(
float(cur_last_nll_loss
)) if cur_last_nll_loss < 300 else float("inf")
print(
" Step %4d | Batch [%3d/%3d] | Loss %.6f | PPL %.6f | PPL@L %.6f | WER %.6f | WER@L %.6f"
% (step, count, train_batch_num, cur_loss,
cur_perplexity, cur_last_perplexity,
cur_word_error_rate, cur_last_word_error_rate))
print("\n")
total_loss /= count
nll_loss /= count
word_error_rate /= count
last_nll_loss /= count
last_word_error_rate /= count
last_perplexity = math.exp(
float(last_nll_loss)) if last_nll_loss < 300 else float("inf")
perplexity = math.exp(
float(nll_loss)) if nll_loss < 300 else float("inf")
print(
" Train Epoch %4d | Loss %.6f | PPL %.6f | PPL@L %.6f | WER %.6f | WER@L %.6f"
% (epoch, total_loss, perplexity, last_perplexity,
word_error_rate, last_word_error_rate))
test_loss = 0.0
test_nll_loss = 0.0
test_count = 0
test_rate = 0.0
test_last_nll_loss = 0.0
test_last_word_error_rate = 0.0
for (enc_inp, dec_inp, dec_tar) in tqdm(test_iterator,
desc="testing"):
# print(np.array(enc_inp).shape)
test_outputs = self.model.eval_session(sess, enc_inp, dec_inp,
dec_tar)
test_loss += test_outputs["total_loss"]
test_nll_loss += test_outputs["nll_loss"]
test_rate += test_outputs["word_error_rate"]
test_last_nll_loss += test_outputs["last_nll_loss"]
test_last_word_error_rate += test_outputs[
"last_word_error_rate"]
test_count += 1
test_loss /= test_count
test_rate /= test_count
test_nll_loss /= test_count
test_last_word_error_rate /= test_count
test_last_nll_loss /= test_count
test_last_perp = math.exp(
float(test_last_nll_loss
)) if test_last_nll_loss < 300 else float("inf")
test_perp = math.exp(
float(test_nll_loss)) if test_nll_loss < 300 else float("inf")
print(
" Test Epoch %d | Loss %.6f | PPL %.6f | PPL@L %.6f | WER %.6f | WER@L %.6f"
% (epoch, test_loss, test_perp, test_last_perp, test_rate,
test_last_word_error_rate))
print()
if test_loss < best_result_loss:
self.save_session(sess)
if np.abs(best_result_loss - test_loss) < 0.1:
cur_lr = sess.run(self.model.lr)
sess.run(self.model.update_lr_op,
feed_dict={self.model.new_lr: cur_lr * 0.5})
best_result_loss = test_loss
toc = datetime.datetime.now()
print(" # Epoch finished in {}".format(toc - tic))
def save_session(self, sess):
print(" # Saving checkpoints.")
save_dir = os.path.join(self.config.checkpoint_dir)
model_name = self.model.__class__.__name__ + ".ckpt"
checkpoint_path = os.path.join(save_dir, model_name)
self.model.saver.save(sess, checkpoint_path)
print(' # Model saved.')
def evaluate_model(self, sess):
print()
print(" # Start Evaluating Metrics on Test Dataset.")
print(
" # Evaluating Per-word Perplexity and Word Error Rate on Test Dataset..."
)
test_iterator = self.dataloader.test_generator()
test_loss = 0.0
test_nll_loss = 0.0
test_count = 0
test_rate = 0.0
test_last_nll_loss = 0.0
test_last_word_error_rate = 0.0
for (enc_inp, dec_inp, dec_tar) in tqdm(test_iterator, desc="testing"):
test_outputs = self.model.eval_session(sess, enc_inp, dec_inp,
dec_tar)
test_loss += test_outputs["total_loss"]
test_nll_loss += test_outputs["nll_loss"]
test_rate += test_outputs["word_error_rate"]
test_last_nll_loss += test_outputs["last_nll_loss"]
test_last_word_error_rate += test_outputs["last_word_error_rate"]
test_count += 1
test_loss /= test_count
test_rate /= test_count
test_nll_loss /= test_count
test_last_word_error_rate /= test_count
test_last_nll_loss /= test_count
test_last_perp = math.exp(float(
test_last_nll_loss)) if test_last_nll_loss < 300 else float("inf")
test_perp = math.exp(
float(test_nll_loss)) if test_nll_loss < 300 else float("inf")
print(
" Test Epoch | Loss %.6f | PPL %.6f | PPL@L %.6f | WER %.6f | WER@L %.6f"
% (test_loss, test_perp, test_last_perp, test_rate,
test_last_word_error_rate))
print()
def evaluate_embedding(self, sess):
print()
print(" # Evaluating Embedding-based Metrics on Test Dataset.")
print(" # Loading word2vec embedding...")
word2vec_path = "data/GoogleNews-vectors-negative300.bin"
word2vec = gensim.models.KeyedVectors.load_word2vec_format(
word2vec_path, binary=True)
keys = word2vec.vocab
test_iterator = self.dataloader.test_generator()
metric_average_history = []
metric_extrema_history = []
metric_greedy_history = []
metric_average_history_1 = []
metric_extrema_history_1 = []
metric_greedy_history_1 = []
for (enc_inp, dec_inp, dec_tar) in tqdm(test_iterator, desc="testing"):
test_outputs = self.model.infer_session(sess, enc_inp, dec_inp,
dec_tar)
infer_sample_id = test_outputs["infer_sample_id"][1]
train_sample_id = test_outputs["train_sample_id"][1]
ground_truth = dec_tar[1]
ground_truth = [[
self.id_to_word.get(idx, "<unk>") for idx in sent
] for sent in ground_truth]
infer_sample_id = [[
self.id_to_word.get(idx, "<unk>") for idx in sent
] for sent in infer_sample_id]
train_sample_id = [[
self.id_to_word.get(idx, "<unk>") for idx in sent
] for sent in train_sample_id]
ground_truth = [[word2vec[w] for w in sent if w in keys]
for sent in ground_truth]
infer_sample_id = [[word2vec[w] for w in sent if w in keys]
for sent in infer_sample_id]
train_sample_id = [[word2vec[w] for w in sent if w in keys]
for sent in train_sample_id]
infer_indices = [
i for i, s, g in zip(range(len(infer_sample_id)),
infer_sample_id, ground_truth)
if s != [] and g != []
]
train_indices = [
i for i, s, g in zip(range(len(train_sample_id)),
train_sample_id, ground_truth)
if s != [] and g != []
]
infer_samples = [infer_sample_id[i] for i in infer_indices]
train_samples = [train_sample_id[i] for i in train_indices]
infer_ground_truth = [ground_truth[i] for i in infer_indices]
train_ground_truth = [ground_truth[i] for i in train_indices]
metric_average = embedding_metric(infer_samples,
infer_ground_truth, word2vec,
'average')
metric_extrema = embedding_metric(infer_samples,
infer_ground_truth, word2vec,
'extrema')
metric_greedy = embedding_metric(infer_samples, infer_ground_truth,
word2vec, 'greedy')
metric_average_history.append(metric_average)
metric_extrema_history.append(metric_extrema)
metric_greedy_history.append(metric_greedy)
avg = embedding_metric(train_samples, train_ground_truth, word2vec,
"average")
ext = embedding_metric(train_samples, train_ground_truth, word2vec,
"extrema")
gre = embedding_metric(train_samples, train_ground_truth, word2vec,
"greedy")
metric_average_history_1.append(avg)
metric_extrema_history_1.append(ext)
metric_greedy_history_1.append(gre)
epoch_average = np.mean(np.concatenate(metric_average_history), axis=0)
epoch_extrema = np.mean(np.concatenate(metric_extrema_history), axis=0)
epoch_greedy = np.mean(np.concatenate(metric_greedy_history), axis=0)
print()
print(
' # Embedding Metrics | Average: %.6f | Extrema: %.6f | Greedy: %.6f'
% (epoch_average, epoch_extrema, epoch_greedy))
print()
epoch_average = np.mean(np.concatenate(metric_average_history_1),
axis=0)
epoch_extrema = np.mean(np.concatenate(metric_extrema_history_1),
axis=0)
epoch_greedy = np.mean(np.concatenate(metric_greedy_history_1), axis=0)
print()
print(
' # Embedding Metrics | Average: %.6f | Extrema: %.6f | Greedy: %.6f'
% (epoch_average, epoch_extrema, epoch_greedy))
print()
def generate(self, sess):
test_iterator = self.dataloader.test_generator()
for (enc_inp, dec_inp, dec_tar) in tqdm(test_iterator, desc="testing"):
test_outputs = self.model.infer_session(sess, enc_inp, dec_inp,
dec_tar)
infer_sample_id = test_outputs["infer_sample_id"][1]
ground_truth = dec_tar[0]
for i in range(self.config.batch_size):
ground = ground_truth[i]
gener = infer_sample_id[i]
ground_list = [
self.id_to_word.get(idx, "<unk>") for idx in ground
]
gener_list = [
self.id_to_word.get(idx, "<unk>") for idx in gener
]
print(" ".join(ground_list))
print(" ".join(gener_list))
print()
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model = nn.DataParallel(FastSpeech()).to(device)
#tacotron2 = get_tacotron2()
print("FastSpeech and Tacotron2 Have Been Defined")
num_param = sum(param.numel() for param in model.parameters())
print('Number of FastSpeech Parameters:', num_param)
# Get dataset
dataset = FastSpeechDataset()
# Optimizer and loss
optimizer = torch.optim.Adam(
model.parameters(), betas=(0.9, 0.98), eps=1e-9)
scheduled_optim = ScheduledOptim(optimizer,
hp.word_vec_dim,
hp.n_warm_up_step,
args.restore_step)
fastspeech_loss = FastSpeechLoss().to(device)
print("Defined Optimizer and Loss Function.")
# Get training loader
print("Get Training Loader")
training_loader = DataLoader(dataset,
batch_size=hp.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
num_workers=cpu_count())
try:
checkpoint = torch.load(os.path.join(
hp.checkpoint_path, 'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
print("\n------Model Restored at Step %d------\n" % args.restore_step)
except:
print("\n------Start New Training------\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Init logger
if not os.path.exists(hp.logger_path):
os.mkdir(hp.logger_path)
# Training
model = model.train()
total_step = hp.epochs * len(training_loader)
Time = np.array(list())
Start = time.clock()
summary = SummaryWriter()
for epoch in range(hp.epochs):
for i, data_of_batch in enumerate(training_loader):
start_time = time.clock()
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
scheduled_optim.zero_grad()
if not hp.pre_target:
# Prepare Data
src_seq = data_of_batch["texts"]
src_pos = data_of_batch["pos"]
mel_tgt = data_of_batch["mels"]
src_seq = torch.from_numpy(src_seq).long().to(device)
src_pos = torch.from_numpy(src_pos).long().to(device)
mel_tgt = torch.from_numpy(mel_tgt).float().to(device)
alignment_target = get_alignment(
src_seq, tacotron2).float().to(device)
# For Data Parallel
mel_max_len = mel_tgt.size(1)
else:
# Prepare Data
src_seq = data_of_batch["texts"]
src_pos = data_of_batch["pos"]
mel_tgt = data_of_batch["mels"]
alignment_target = data_of_batch["alignment"]
# print(alignment_target)
# print(alignment_target.shape)
# print(mel_tgt.shape)
# print(src_seq.shape)
# print(src_seq)
src_seq = torch.from_numpy(src_seq).long().to(device)
src_pos = torch.from_numpy(src_pos).long().to(device)
mel_tgt = torch.from_numpy(mel_tgt).float().to(device)
alignment_target = torch.from_numpy(
alignment_target).float().to(device)
# For Data Parallel
mel_max_len = mel_tgt.size(1)
# print(alignment_target.shape)
# Forward
mel_output, mel_output_postnet, duration_predictor_output = model(
src_seq, src_pos,
mel_max_length=mel_max_len,
length_target=alignment_target)
# Cal Loss
mel_loss, mel_postnet_loss, duration_predictor_loss = fastspeech_loss(
mel_output, mel_output_postnet, duration_predictor_output, mel_tgt, alignment_target)
total_loss = mel_loss + mel_postnet_loss + duration_predictor_loss
# Logger
t_l = total_loss.item()
m_l = mel_loss.item()
m_p_l = mel_postnet_loss.item()
d_p_l = duration_predictor_loss.item()
with open(os.path.join("logger", "total_loss.txt"), "a") as f_total_loss:
f_total_loss.write(str(t_l)+"\n")
with open(os.path.join("logger", "mel_loss.txt"), "a") as f_mel_loss:
f_mel_loss.write(str(m_l)+"\n")
with open(os.path.join("logger", "mel_postnet_loss.txt"), "a") as f_mel_postnet_loss:
f_mel_postnet_loss.write(str(m_p_l)+"\n")
with open(os.path.join("logger", "duration_predictor_loss.txt"), "a") as f_d_p_loss:
f_d_p_loss.write(str(d_p_l)+"\n")
# Backward
total_loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), hp.grad_clip_thresh)
# Update weights
if args.frozen_learning_rate:
scheduled_optim.step_and_update_lr_frozen(
args.learning_rate_frozen)
else:
scheduled_optim.step_and_update_lr()
# Print
if current_step % hp.log_step == 0:
Now = time.clock()
str1 = "Epoch [{}/{}], Step [{}/{}], Mel Loss: {:.4f}, Mel PostNet Loss: {:.4f};".format(
epoch+1, hp.epochs, current_step, total_step, mel_loss.item(), mel_postnet_loss.item())
str2 = "Duration Predictor Loss: {:.4f}, Total Loss: {:.4f}.".format(
duration_predictor_loss.item(), total_loss.item())
str3 = "Current Learning Rate is {:.6f}.".format(
scheduled_optim.get_learning_rate())
str4 = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now-Start), (total_step-current_step)*np.mean(Time))
print("\n" + str1)
print(str2)
print(str3)
print(str4)
with open(os.path.join("logger", "logger.txt"), "a") as f_logger:
f_logger.write(str1 + "\n")
f_logger.write(str2 + "\n")
f_logger.write(str3 + "\n")
f_logger.write(str4 + "\n")
f_logger.write("\n")
summary.add_scalar('loss', total_loss.item(), current_step)
if current_step % hp.save_step == 0:
torch.save({'model': model.state_dict(), 'optimizer': optimizer.state_dict(
)}, os.path.join(hp.checkpoint_path, 'checkpoint_%d.pth.tar' % current_step))
print("save model at step %d ..." % current_step)
end_time = time.clock()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(
Time, [i for i in range(len(Time))], axis=None)
Time = np.append(Time, temp_value)
def main(args):
# Get device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
# Define model
model = nn.DataParallel(network.Model()).to(device)
print("Model Ha s Been Defined")
num_param = sum(param.numel() for param in model.parameters())
print('Number of Transformer-TTS Parameters:', num_param)
# Get dataset
dataset = TransformerTTSDataset()
# Optimizer and loss
optimizer = torch.optim.Adam(model.parameters(), lr=hp.lr)
print("Defined Optimizer")
# Get training loader
training_loader = DataLoader(dataset,
batch_size=hp.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
num_workers=cpu_count())
print("Got Training Loader")
try:
checkpoint = torch.load(
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % args.restore_step))
model.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
print("\n------Model Restored at Step %d------\n" % args.restore_step)
except:
print("\n------Start New Training------\n")
if not os.path.exists(hp.checkpoint_path):
os.mkdir(hp.checkpoint_path)
# Init logger
if not os.path.exists(hp.logger_path):
os.mkdir(hp.logger_path)
# Training
model = model.train()
total_step = hp.epochs * len(training_loader)
Time = np.array(list())
Start = time.clock()
for epoch in range(hp.epochs):
for i, data_of_batch in enumerate(training_loader):
start_time = time.clock()
current_step = i + args.restore_step + \
epoch * len(training_loader) + 1
# Init
optimizer.zero_grad()
# Get Data
character = torch.from_numpy(
data_of_batch["texts"]).long().to(device)
mel_input = torch.from_numpy(
data_of_batch["mel_input"]).float().to(device)
mel_target = torch.from_numpy(
data_of_batch["mel_target"]).float().to(device)
pos_text = torch.from_numpy(
data_of_batch["pos_text"]).long().to(device)
pos_mel = torch.from_numpy(
data_of_batch["pos_mel"]).long().to(device)
stop_target = pos_mel.eq(0).float().to(device)
# Forward
mel_pred, postnet_pred, _, stop_preds, _, _ = model.forward(
character, mel_input, pos_text, pos_mel)
# Cal Loss
mel_loss = nn.L1Loss()(mel_pred, mel_target)
mel_postnet_loss = nn.L1Loss()(postnet_pred, mel_target)
stop_pred_loss = nn.MSELoss()(stop_preds, stop_target)
total_loss = mel_loss + mel_postnet_loss + stop_pred_loss
# Logger
t_l = total_loss.item()
m_l = mel_loss.item()
m_p_l = mel_postnet_loss.item()
s_l = stop_pred_loss.item()
with open(os.path.join("logger", "total_loss.txt"),
"a") as f_total_loss:
f_total_loss.write(str(t_l) + "\n")
with open(os.path.join("logger", "mel_loss.txt"),
"a") as f_mel_loss:
f_mel_loss.write(str(m_l) + "\n")
with open(os.path.join("logger", "mel_postnet_loss.txt"),
"a") as f_mel_postnet_loss:
f_mel_postnet_loss.write(str(m_p_l) + "\n")
with open(os.path.join("logger", "stop_pred_loss.txt"),
"a") as f_s_loss:
f_s_loss.write(str(s_l) + "\n")
# Backward
total_loss.backward()
# Clipping gradients to avoid gradient explosion
nn.utils.clip_grad_norm_(model.parameters(), 1.)
# Update weights
optimizer.step()
current_learning_rate = adjust_learning_rate(
optimizer, current_step)
# Print
if current_step % hp.log_step == 0:
Now = time.clock()
str1 = "Epoch [{}/{}], Step [{}/{}], Mel Loss: {:.4f}, Mel PostNet Loss: {:.4f};".format(
epoch + 1, hp.epochs, current_step, total_step,
mel_loss.item(), mel_postnet_loss.item())
str2 = "Stop Predicted Loss: {:.4f}, Total Loss: {:.4f}.".format(
stop_pred_loss.item(), total_loss.item())
str3 = "Current Learning Rate is {:.6f}.".format(
current_learning_rate)
str4 = "Time Used: {:.3f}s, Estimated Time Remaining: {:.3f}s.".format(
(Now - Start), (total_step - current_step) * np.mean(Time))
print("\n" + str1)
print(str2)
print(str3)
print(str4)
with open(os.path.join("logger", "logger.txt"),
"a") as f_logger:
f_logger.write(str1 + "\n")
f_logger.write(str2 + "\n")
f_logger.write(str3 + "\n")
f_logger.write(str4 + "\n")
f_logger.write("\n")
if current_step % hp.save_step == 0:
torch.save(
{
'model': model.state_dict(),
'optimizer': optimizer.state_dict()
},
os.path.join(hp.checkpoint_path,
'checkpoint_%d.pth.tar' % current_step))
print("save model at step %d ..." % current_step)
end_time = time.clock()
Time = np.append(Time, end_time - start_time)
if len(Time) == hp.clear_Time:
temp_value = np.mean(Time)
Time = np.delete(Time, [i for i in range(len(Time))],
axis=None)
Time = np.append(Time, temp_value)
