def main():
args = parser.parse_args()
# Load a config file (.yml)
params = load_config(join(args.model_path, 'config.yml'), is_eval=True)
# Load dataset
test_data = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type='test_eval92',
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=args.eval_batch_size,
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
sort_utt=False,
reverse=False,
tool=params['tool'])
params['num_classes'] = test_data.num_classes
params['num_classes_sub'] = test_data.num_classes_sub
# Load model
model = load(model_type=params['model_type'],
params=params,
backend=params['backend'])
# Restore the saved parameters
model.load_checkpoint(save_path=args.model_path, epoch=args.epoch)
# GPU setting
model.set_cuda(deterministic=False, benchmark=True)
a2c_oracle = False
# Visualize
plot(model=model,
dataset=test_data,
beam_width=args.beam_width,
beam_width_sub=args.beam_width_sub,
eval_batch_size=args.eval_batch_size,
a2c_oracle=a2c_oracle,
save_path=mkdir_join(args.model_path, 'att_weights'))
def main():
args = parser.parse_args()
##################################################
# DATSET
##################################################
if args.model_save_path is not None:
# Load a config file (.yml)
params = load_config(args.config_path)
# NOTE: Retrain the saved model from the last checkpoint
elif args.saved_model_path is not None:
params = load_config(os.path.join(args.saved_model_path, 'config.yml'))
else:
raise ValueError("Set model_save_path or saved_model_path.")
# Load dataset
train_data = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type=params['data_size'],
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=params['batch_size'],
max_epoch=params['num_epoch'],
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
min_frame_num=params['min_frame_num'],
sort_utt=True,
sort_stop_epoch=params['sort_stop_epoch'],
tool=params['tool'],
num_enque=None,
dynamic_batching=params['dynamic_batching'])
dev93_data = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type='test_dev93',
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=params['batch_size'],
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
shuffle=True,
tool=params['tool'])
eval92_data = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type='test_eval92',
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=params['batch_size'],
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
tool=params['tool'])
params['num_classes'] = train_data.num_classes
params['num_classes_sub'] = train_data.num_classes_sub
##################################################
# MODEL
##################################################
# Model setting
model = load(model_type=params['model_type'],
params=params,
backend=params['backend'])
if args.model_save_path is not None:
# Set save path
save_path = mkdir_join(
args.model_save_path, params['backend'], params['model_type'],
params['label_type'] + '_' + params['label_type_sub'],
params['data_size'], model.name)
model.set_save_path(save_path)
# Save config file
save_config(config_path=args.config_path, save_path=model.save_path)
# Setting for logging
logger = set_logger(model.save_path)
if os.path.isdir(params['char_init']):
# NOTE: Start training from the pre-trained character model
model.load_checkpoint(save_path=params['char_init'],
epoch=-1,
load_pretrained_model=True)
# Count total parameters
for name in sorted(list(model.num_params_dict.keys())):
num_params = model.num_params_dict[name]
logger.info("%s %d" % (name, num_params))
logger.info("Total %.3f M parameters" %
(model.total_parameters / 1000000))
# Define optimizer
model.set_optimizer(optimizer=params['optimizer'],
learning_rate_init=float(params['learning_rate']),
weight_decay=float(params['weight_decay']),
clip_grad_norm=params['clip_grad_norm'],
lr_schedule=False,
factor=params['decay_rate'],
patience_epoch=params['decay_patient_epoch'])
epoch, step = 1, 0
learning_rate = float(params['learning_rate'])
metric_dev_best = 1
# NOTE: Retrain the saved model from the last checkpoint
elif args.saved_model_path is not None:
# Set save path
model.save_path = args.saved_model_path
# Setting for logging
logger = set_logger(model.save_path, restart=True)
# Define optimizer
model.set_optimizer(
optimizer=params['optimizer'],
learning_rate_init=float(params['learning_rate']), # on-the-fly
weight_decay=float(params['weight_decay']),
clip_grad_norm=params['clip_grad_norm'],
lr_schedule=False,
factor=params['decay_rate'],
patience_epoch=params['decay_patient_epoch'])
# Restore the last saved model
epoch, step, learning_rate, metric_dev_best = model.load_checkpoint(
save_path=args.saved_model_path, epoch=-1, restart=True)
else:
raise ValueError("Set model_save_path or saved_model_path.")
train_data.epoch = epoch - 1
# GPU setting
model.set_cuda(deterministic=False, benchmark=True)
logger.info('PID: %s' % os.getpid())
logger.info('USERNAME: %s' % os.uname()[1])
# Set process name
setproctitle('wsj_' + params['backend'] + '_' + params['model_type'] +
'_' + params['label_type'] + '_' + params['label_type_sub'] +
'_' + params['data_size'])
##################################################
# TRAINING LOOP
##################################################
# Define learning rate controller
lr_controller = Controller(
learning_rate_init=learning_rate,
backend=params['backend'],
decay_start_epoch=params['decay_start_epoch'],
decay_rate=params['decay_rate'],
decay_patient_epoch=params['decay_patient_epoch'],
lower_better=True)
# Setting for tensorboard
if params['backend'] == 'pytorch':
tf_writer = SummaryWriter(model.save_path)
# Train model
csv_steps, csv_loss_train, csv_loss_dev = [], [], []
start_time_train = time.time()
start_time_epoch = time.time()
start_time_step = time.time()
not_improved_epoch = 0
best_model = model
loss_train_mean, loss_main_train_mean, loss_sub_train_mean = 0., 0., 0.
pbar_epoch = tqdm(total=len(train_data))
while True:
# Compute loss in the training set (including parameter update)
batch_train, is_new_epoch = train_data.next()
model, loss_train_val, loss_main_train_val, loss_sub_train_val = train_hierarchical_step(
model,
batch_train,
params['clip_grad_norm'],
backend=params['backend'])
loss_train_mean += loss_train_val
loss_main_train_mean += loss_main_train_val
loss_sub_train_mean += loss_sub_train_val
pbar_epoch.update(len(batch_train['xs']))
if (step + 1) % params['print_step'] == 0:
# Compute loss in the dev set
batch_dev = dev93_data.next()[0]
loss_dev, loss_main_dev, loss_sub_dev = model(
batch_dev['xs'],
batch_dev['ys'],
batch_dev['x_lens'],
batch_dev['y_lens'],
batch_dev['ys_sub'],
batch_dev['y_lens_sub'],
is_eval=True)
loss_train_mean /= params['print_step']
loss_main_train_mean /= params['print_step']
loss_sub_train_mean /= params['print_step']
csv_steps.append(step)
csv_loss_train.append(loss_train_mean)
csv_loss_dev.append(loss_dev)
# Logging by tensorboard
if params['backend'] == 'pytorch':
tf_writer.add_scalar('train/loss', loss_train_mean, step + 1)
tf_writer.add_scalar('train/loss_main', loss_main_train_mean,
step + 1)
tf_writer.add_scalar('train/loss_sub', loss_sub_train_mean,
step + 1)
tf_writer.add_scalar('dev/loss', loss_dev, step + 1)
tf_writer.add_scalar('dev/loss_main', loss_main_dev, step + 1)
tf_writer.add_scalar('dev/loss_sub', loss_sub_dev, step + 1)
# for name, param in model.named_parameters():
# name = name.replace('.', '/')
# tf_writer.add_histogram(
# name, param.data.cpu().numpy(), step + 1)
# if param.grad is not None:
# tf_writer.add_histogram(
# name + '/grad', param.grad.data.cpu().numpy(), step + 1)
# # TODO: fix this
duration_step = time.time() - start_time_step
logger.info(
"...Step:%d(epoch:%.3f) loss:%.3f/%.3f/%.3f(%.3f/%.3f/%.3f)/lr:%.5f/batch:%d/x_lens:%d (%.3f min)"
% (step + 1, train_data.epoch_detail, loss_train_mean,
loss_main_train_mean, loss_sub_train_mean, loss_dev,
loss_main_dev, loss_sub_dev, learning_rate,
train_data.current_batch_size, max(batch_train['x_lens']) *
params['num_stack'], duration_step / 60))
start_time_step = time.time()
loss_train_mean, loss_main_train_mean, loss_sub_train_mean = 0., 0., 0.
step += 1
# Save checkpoint and evaluate model per epoch
if is_new_epoch:
duration_epoch = time.time() - start_time_epoch
logger.info('===== EPOCH:%d (%.3f min) =====' %
(epoch, duration_epoch / 60))
# Save fugure of loss
plot_loss(csv_loss_train,
csv_loss_dev,
csv_steps,
save_path=model.save_path)
if epoch < params['eval_start_epoch']:
# Save the model
model.save_checkpoint(model.save_path, epoch, step,
learning_rate, metric_dev_best)
else:
start_time_eval = time.time()
# dev
if model.main_loss_weight > 0:
metric_dev, _ = eval_word(
models=[model],
dataset=dev93_data,
beam_width=1,
max_decode_len=MAX_DECODE_LEN_WORD,
eval_batch_size=1)
logger.info(' WER (dev93, main): %.3f %%' %
(metric_dev * 100))
else:
wer_dev_sub, metric_dev, _ = eval_char(
models=[model],
dataset=dev93_data,
beam_width=1,
max_decode_len=MAX_DECODE_LEN_CHAR,
eval_batch_size=1)
logger.info(' WER / CER (dev93, sub): %.3f / %.3f %%' %
((wer_dev_sub * 100), (metric_dev * 100)))
if metric_dev < metric_dev_best:
metric_dev_best = metric_dev
not_improved_epoch = 0
best_model = copy.deepcopy(model)
logger.info('||||| Best Score |||||')
# Save the model
model.save_checkpoint(model.save_path, epoch, step,
learning_rate, metric_dev_best)
# test
if model.main_loss_weight > 0:
wer_eval92, _ = eval_word(
models=[model],
dataset=eval92_data,
beam_width=1,
max_decode_len=MAX_DECODE_LEN_WORD,
eval_batch_size=1)
logger.info(' WER (eval92, main): %.3f %%' %
(wer_eval92 * 100))
else:
wer_eval92_sub, cer_eval92_sub, _ = eval_char(
models=[model],
dataset=eval92_data,
beam_width=1,
max_decode_len=MAX_DECODE_LEN_CHAR,
eval_batch_size=1)
logger.info(
' WER / CER (eval92, sub): %.3f / %.3f %%' %
((wer_eval92_sub * 100), (cer_eval92_sub * 100)))
else:
not_improved_epoch += 1
duration_eval = time.time() - start_time_eval
logger.info('Evaluation time: %.3f min' % (duration_eval / 60))
# Early stopping
if not_improved_epoch == params['not_improved_patient_epoch']:
break
# Update learning rate
model.optimizer, learning_rate = lr_controller.decay_lr(
optimizer=model.optimizer,
learning_rate=learning_rate,
epoch=epoch,
value=metric_dev)
if epoch == params['convert_to_sgd_epoch']:
# Convert to fine-tuning stage
model.set_optimizer(
'sgd',
learning_rate_init=learning_rate,
weight_decay=float(params['weight_decay']),
clip_grad_norm=params['clip_grad_norm'],
lr_schedule=False,
factor=params['decay_rate'],
patience_epoch=params['decay_patient_epoch'])
logger.info('========== Convert to SGD ==========')
# Inject Gaussian noise to all parameters
if float(params['weight_noise_std']) > 0:
model.weight_noise_injection = True
pbar_epoch = tqdm(total=len(train_data))
print('========== EPOCH:%d (%.3f min) ==========' %
(epoch, duration_epoch / 60))
if epoch == params['num_epoch']:
break
start_time_step = time.time()
start_time_epoch = time.time()
epoch += 1
duration_train = time.time() - start_time_train
logger.info('Total time: %.3f hour' % (duration_train / 3600))
if params['backend'] == 'pytorch':
tf_writer.close()
# TODO: evaluate the best model by beam search here
# Training was finished correctly
with open(os.path.join(model.save_path, 'COMPLETE'), 'w') as f:
f.write('')
def check(self,
label_type,
label_type_sub,
data_type='test_dev93',
data_size='train_si284',
backend='pytorch',
shuffle=False,
sort_utt=True,
sort_stop_epoch=None,
frame_stacking=False,
splice=1,
num_gpus=1):
print('========================================')
print(' backend: %s' % backend)
print(' label_type: %s' % label_type)
print(' label_type_sub: %s' % label_type_sub)
print(' data_type: %s' % data_type)
print(' data_size: %s' % data_size)
print(' shuffle: %s' % str(shuffle))
print(' sort_utt: %s' % str(sort_utt))
print(' sort_stop_epoch: %s' % str(sort_stop_epoch))
print(' frame_stacking: %s' % str(frame_stacking))
print(' splice: %d' % splice)
print(' num_gpus: %d' % num_gpus)
print('========================================')
num_stack = 3 if frame_stacking else 1
num_skip = 3 if frame_stacking else 1
dataset = Dataset(data_save_path='/n/sd8/inaguma/corpus/wsj/kaldi',
backend=backend,
input_freq=81,
use_delta=True,
use_double_delta=True,
data_type=data_type,
data_size=data_size,
label_type=label_type,
label_type_sub=label_type_sub,
batch_size=64,
max_epoch=1,
splice=splice,
num_stack=num_stack,
num_skip=num_skip,
min_frame_num=40,
shuffle=shuffle,
sort_utt=sort_utt,
reverse=True,
sort_stop_epoch=sort_stop_epoch,
num_gpus=num_gpus,
tool='htk',
num_enque=None)
print('=> Loading mini-batch...')
for batch, is_new_epoch in dataset:
if data_type == 'train' and backend == 'pytorch':
for i in range(len(batch['xs'])):
if batch['xs'].shape[1] < batch['ys'].shape[1]:
raise ValueError(
'input length must be longer than label length.')
if dataset.is_test:
str_ref = batch['ys'][0][0]
str_ref_sub = batch['ys_sub'][0][0]
else:
str_ref = dataset.idx2word(batch['ys'][0][:batch['y_lens'][0]])
str_ref_sub = dataset.idx2char(
batch['ys_sub'][0][:batch['y_lens_sub'][0]])
print('----- %s (epoch: %.3f, batch: %d) -----' %
(batch['input_names'][0], dataset.epoch_detail,
len(batch['xs'])))
print('=' * 20)
print(str_ref)
print('-' * 10)
print(str_ref_sub)
print('x_lens: %d' % (batch['x_lens'][0] * num_stack))
if not dataset.is_test:
print('y_lens (word): %d' % batch['y_lens'][0])
print('y_lens_sub (char): %d' % batch['y_lens_sub'][0])
if dataset.epoch_detail >= 1:
break
def main():
args = parser.parse_args()
# Load a config file (.yml)
params = load_config(join(args.model_path, 'config.yml'), is_eval=True)
# Load dataset
dataset = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type='test_eval92',
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=args.eval_batch_size,
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
sort_utt=False,
reverse=False,
tool=params['tool'])
params['num_classes'] = dataset.num_classes
params['num_classes_sub'] = dataset.num_classes_sub
# Load model
model = load(model_type=params['model_type'],
params=params,
backend=params['backend'])
# Restore the saved parameters
model.load_checkpoint(save_path=args.model_path, epoch=args.epoch)
# GPU setting
model.set_cuda(deterministic=False, benchmark=True)
save_path = mkdir_join(args.model_path, 'att_weights')
######################################################################
# Clean directory
if save_path is not None and isdir(save_path):
shutil.rmtree(save_path)
mkdir(save_path)
word2char = Word2char(dataset.vocab_file_path, dataset.vocab_file_path_sub)
for batch, is_new_epoch in dataset:
# Decode
if model.model_type == 'hierarchical_attention' and args.joint_decoding is not None:
best_hyps, aw, best_hyps_sub, aw_sub, _ = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width,
max_decode_len=MAX_DECODE_LEN_WORD,
min_decode_len=MIN_DECODE_LEN_WORD,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty,
joint_decoding=args.joint_decoding,
space_index=dataset.char2idx('_')[0],
oov_index=dataset.word2idx('OOV')[0],
word2char=word2char,
idx2word=dataset.idx2word,
idx2char=dataset.idx2char,
score_sub_weight=args.score_sub_weight)
else:
best_hyps, aw, perm_idx = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width,
max_decode_len=MAX_DECODE_LEN_WORD,
min_decode_len=MIN_DECODE_LEN_WORD,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty)
best_hyps_sub, aw_sub, _ = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width_sub,
max_decode_len=MAX_DECODE_LEN_CHAR,
min_decode_len=MIN_DECODE_LEN_CHAR,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty,
task_index=1)
for b in range(len(batch['xs'])):
word_list = dataset.idx2word(best_hyps[b], return_list=True)
char_list = dataset.idx2char(best_hyps_sub[b], return_list=True)
# Visualize
plot_hierarchical_attention_weights(
aw[b][:len(word_list), :batch['x_lens'][b]],
aw_sub[b][:len(char_list), :batch['x_lens'][b]],
label_list=word_list,
label_list_sub=char_list,
spectrogram=batch['xs'][b, :, :dataset.input_freq],
save_path=mkdir_join(save_path,
batch['input_names'][b] + '.png'),
figsize=(40, 8))
if is_new_epoch:
break
def main():
args = parser.parse_args()
# Load a config file (.yml)
params = load_config(join(args.model_path, 'config.yml'), is_eval=True)
# Load dataset
test_data = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type='test_eval92',
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=args.eval_batch_size,
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
sort_utt=False,
tool=params['tool'])
params['num_classes'] = test_data.num_classes
params['num_classes_sub'] = test_data.num_classes_sub
# Load model
model = load(model_type=params['model_type'],
params=params,
backend=params['backend'])
# Restore the saved parameters
model.load_checkpoint(save_path=args.model_path, epoch=args.epoch)
# GPU setting
model.set_cuda(deterministic=False, benchmark=True)
a2c_oracle = False
resolving_unk = True
print('beam width (main): %d' % args.beam_width)
print('beam width (sub) : %d' % args.beam_width_sub)
print('a2c oracle: %s' % str(a2c_oracle))
print('resolving_unk: %s' % str(resolving_unk))
wer_eval92, df_eval92 = eval_word(models=[model],
dataset=test_data,
beam_width=args.beam_width,
beam_width_sub=args.beam_width_sub,
max_decode_len=MAX_DECODE_LEN_WORD,
max_decode_len_sub=MAX_DECODE_LEN_CHAR,
eval_batch_size=args.eval_batch_size,
progressbar=True,
resolving_unk=resolving_unk,
a2c_oracle=a2c_oracle)
print(' WER (eval92, main): %.3f %%' % (wer_eval92 * 100))
print(df_eval92)
wer_eval92_sub, cer_eval92_sub, df_eval92_sub = eval_char(
models=[model],
dataset=test_data,
beam_width=args.beam_width_sub,
max_decode_len=MAX_DECODE_LEN_CHAR,
eval_batch_size=args.eval_batch_size,
progressbar=True)
print(' WER / CER (eval92, sub): %.3f / %.3f %%' %
((wer_eval92_sub * 100), (cer_eval92_sub * 100)))
print(df_eval92_sub)
def main():
args = parser.parse_args()
# Load a config file (.yml)
params = load_config(join(args.model_path, 'config.yml'), is_eval=True)
# Setting for logging
logger = set_logger(args.model_path)
# for i, data_type in enumerate(['test_dev93', 'test_eval92']):
for i, data_type in enumerate(['test_eval92']):
# Load dataset
dataset = Dataset(data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
data_type=data_type,
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=args.eval_batch_size,
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
sort_utt=False,
tool=params['tool'])
if i == 0:
params['num_classes'] = dataset.num_classes
params['num_classes_sub'] = dataset.num_classes_sub
# Load model
model = load(model_type=params['model_type'],
params=params,
backend=params['backend'])
# Restore the saved parameters
epoch, _, _, _ = model.load_checkpoint(save_path=args.model_path,
epoch=args.epoch)
# GPU setting
model.set_cuda(deterministic=False, benchmark=True)
logger.info('beam width (main): %d' % args.beam_width)
logger.info('beam width (sub) : %d' % args.beam_width_sub)
logger.info('epoch: %d' % (epoch - 1))
logger.info('a2c oracle: %s' % str(args.a2c_oracle))
logger.info('resolving_unk: %s' % str(args.resolving_unk))
logger.info('joint_decoding: %s' % str(args.joint_decoding))
logger.info('score_sub_weight : %f' % args.score_sub_weight)
wer, df = eval_word(models=[model],
dataset=dataset,
eval_batch_size=args.eval_batch_size,
beam_width=args.beam_width,
max_decode_len=MAX_DECODE_LEN_WORD,
min_decode_len=MIN_DECODE_LEN_WORD,
beam_width_sub=args.beam_width_sub,
max_decode_len_sub=MAX_DECODE_LEN_CHAR,
min_decode_len_sub=MIN_DECODE_LEN_CHAR,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty,
progressbar=True,
resolving_unk=args.resolving_unk,
a2c_oracle=args.a2c_oracle,
joint_decoding=args.joint_decoding,
score_sub_weight=args.score_sub_weight)
logger.info(' WER (%s, main): %.3f %%' % (dataset.data_type,
(wer * 100)))
logger.info(df)
def main():
args = parser.parse_args()
# Load a config file (.yml)
params = load_config(join(args.model_path, 'config.yml'), is_eval=True)
# Load dataset
dataset = Dataset(
data_save_path=args.data_save_path,
backend=params['backend'],
input_freq=params['input_freq'],
use_delta=params['use_delta'],
use_double_delta=params['use_double_delta'],
# data_type='test_dev93',
data_type='test_eval92',
data_size=params['data_size'],
label_type=params['label_type'],
label_type_sub=params['label_type_sub'],
batch_size=args.eval_batch_size,
splice=params['splice'],
num_stack=params['num_stack'],
num_skip=params['num_skip'],
sort_utt=False,
reverse=False,
tool=params['tool'])
params['num_classes'] = dataset.num_classes
params['num_classes_sub'] = dataset.num_classes_sub
# Load model
model = load(model_type=params['model_type'],
params=params,
backend=params['backend'])
# Restore the saved parameters
model.load_checkpoint(save_path=args.model_path, epoch=args.epoch)
# GPU setting
model.set_cuda(deterministic=False, benchmark=True)
# sys.stdout = open(join(model.model_dir, 'decode.txt'), 'w')
######################################################################
word2char = Word2char(dataset.vocab_file_path, dataset.vocab_file_path_sub)
for batch, is_new_epoch in dataset:
# Decode
if model.model_type == 'nested_attention':
best_hyps, aw, best_hyps_sub, aw_sub, _, perm_idx = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width,
max_decode_len=MAX_DECODE_LEN_WORD,
min_decode_len=MIN_DECODE_LEN_WORD,
beam_width_sub=args.beam_width_sub,
max_decode_len_sub=MAX_DECODE_LEN_CHAR,
min_decode_len_sub=MIN_DECODE_LEN_CHAR,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty)
else:
best_hyps, aw, perm_idx = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width,
max_decode_len=MAX_DECODE_LEN_WORD,
min_decode_len=MIN_DECODE_LEN_WORD,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty)
best_hyps_sub, aw_sub, _ = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width_sub,
max_decode_len=MAX_DECODE_LEN_CHAR,
min_decode_len=MIN_DECODE_LEN_CHAR,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty,
task_index=1)
if model.model_type == 'hierarchical_attention' and args.joint_decoding is not None:
best_hyps_joint, aw_joint, best_hyps_sub_joint, aw_sub_joint, _ = model.decode(
batch['xs'],
batch['x_lens'],
beam_width=args.beam_width,
max_decode_len=MAX_DECODE_LEN_WORD,
min_decode_len=MIN_DECODE_LEN_WORD,
length_penalty=args.length_penalty,
coverage_penalty=args.coverage_penalty,
joint_decoding=args.joint_decoding,
space_index=dataset.char2idx('_')[0],
oov_index=dataset.word2idx('OOV')[0],
word2char=word2char,
idx2word=dataset.idx2word,
idx2char=dataset.idx2char,
score_sub_weight=args.score_sub_weight)
ys = batch['ys'][perm_idx]
y_lens = batch['y_lens'][perm_idx]
ys_sub = batch['ys_sub'][perm_idx]
y_lens_sub = batch['y_lens_sub'][perm_idx]
for b in range(len(batch['xs'])):
##############################
# Reference
##############################
if dataset.is_test:
str_ref = ys[b][0]
str_ref_sub = ys_sub[b][0]
# NOTE: transcript is seperated by space('_')
else:
# Convert from list of index to string
str_ref = dataset.idx2word(ys[b][:y_lens[b]])
str_ref_sub = dataset.idx2char(ys_sub[b][:y_lens_sub[b]])
##############################
# Hypothesis
##############################
# Convert from list of index to string
str_hyp = dataset.idx2word(best_hyps[b])
str_hyp_sub = dataset.idx2char(best_hyps_sub[b])
if model.model_type == 'hierarchical_attention' and args.joint_decoding is not None:
str_hyp_joint = dataset.idx2word(best_hyps_joint[b])
str_hyp_sub_joint = dataset.idx2char(best_hyps_sub_joint[b])
##############################
# Resolving UNK
##############################
if 'OOV' in str_hyp and args.resolving_unk:
str_hyp_no_unk = resolve_unk(str_hyp, best_hyps_sub[b], aw[b],
aw_sub[b], dataset.idx2char)
if model.model_type == 'hierarchical_attention' and args.joint_decoding is not None:
if 'OOV' in str_hyp_joint and args.resolving_unk:
str_hyp_no_unk_joint = resolve_unk(str_hyp_joint,
best_hyps_sub_joint[b],
aw_joint[b],
aw_sub_joint[b],
dataset.idx2char)
print('----- wav: %s -----' % batch['input_names'][b])
print('Ref : %s' % str_ref.replace('_', ' '))
print('Hyp (main) : %s' % str_hyp.replace('_', ' '))
print('Hyp (sub) : %s' % str_hyp_sub.replace('_', ' '))
if 'OOV' in str_hyp and args.resolving_unk:
print('Hyp (no UNK): %s' % str_hyp_no_unk.replace('_', ' '))
if model.model_type == 'hierarchical_attention' and args.joint_decoding is not None:
print('===== joint decoding =====')
print('Hyp (main) : %s' % str_hyp_joint.replace('_', ' '))
print('Hyp (sub) : %s' % str_hyp_sub_joint.replace('_', ' '))
if 'OOV' in str_hyp_joint and args.resolving_unk:
print('Hyp (no UNK): %s' %
str_hyp_no_unk_joint.replace('_', ' '))
try:
wer, _, _, _ = compute_wer(ref=str_ref.split('_'),
hyp=re.sub(r'(.*)_>(.*)', r'\1',
str_hyp).split('_'),
normalize=True)
print('WER (main) : %.3f %%' % (wer * 100))
wer_sub, _, _, _ = compute_wer(ref=str_ref_sub.split('_'),
hyp=re.sub(
r'(.*)>(.*)', r'\1',
str_hyp_sub).split('_'),
normalize=True)
print('WER (sub) : %.3f %%' % (wer_sub * 100))
if 'OOV' in str_hyp and args.resolving_unk:
wer_no_unk, _, _, _ = compute_wer(
ref=str_ref.split('_'),
hyp=re.sub(r'(.*)_>(.*)', r'\1',
str_hyp_no_unk.replace('*', '')).split('_'),
normalize=True)
print('WER (no UNK): %.3f %%' % (wer_no_unk * 100))
if model.model_type == 'hierarchical_attention' and args.joint_decoding is not None:
print('===== joint decoding =====')
wer_joint, _, _, _ = compute_wer(
ref=str_ref.split('_'),
hyp=re.sub(r'(.*)_>(.*)', r'\1',
str_hyp_joint).split('_'),
normalize=True)
print('WER (main) : %.3f %%' % (wer_joint * 100))
if 'OOV' in str_hyp_joint and args.resolving_unk:
wer_no_unk_joint, _, _, _ = compute_wer(
ref=str_ref.split('_'),
hyp=re.sub(r'(.*)_>(.*)', r'\1',
str_hyp_no_unk_joint.replace(
'*', '')).split('_'),
normalize=True)
print('WER (no UNK): %.3f %%' %
(wer_no_unk_joint * 100))
except:
print('--- skipped ---')
if is_new_epoch:
break