def main():
# Load configuration
args, recog_params, dir_name = parse_args_eval(sys.argv[1:])
# Setting for logging
if os.path.isfile(os.path.join(args.recog_dir, 'plot.log')):
os.remove(os.path.join(args.recog_dir, 'plot.log'))
set_logger(os.path.join(args.recog_dir, 'plot.log'),
stdout=args.recog_stdout)
for i, s in enumerate(args.recog_sets):
# Load dataloader
dataloader = build_dataloader(args=args,
tsv_path=s,
batch_size=1,
is_test=True)
if i == 0:
# Load the ASR model
model = Speech2Text(args, dir_name)
epoch = int(args.recog_model[0].split('-')[-1])
if args.recog_n_average > 1:
# Model averaging for Transformer
model = average_checkpoints(model,
args.recog_model[0],
n_average=args.recog_n_average)
else:
load_checkpoint(args.recog_model[0], model)
if not args.recog_unit:
args.recog_unit = args.unit
logger.info('recog unit: %s' % args.recog_unit)
logger.info('epoch: %d' % epoch)
logger.info('batch size: %d' % args.recog_batch_size)
# GPU setting
if args.recog_n_gpus >= 1:
model.cudnn_setting(deterministic=True, benchmark=False)
model.cuda()
save_path = mkdir_join(args.recog_dir, 'ctc_probs')
# Clean directory
if save_path is not None and os.path.isdir(save_path):
shutil.rmtree(save_path)
os.mkdir(save_path)
while True:
batch, is_new_epoch = dataloader.next(
recog_params['recog_batch_size'])
best_hyps_id, _ = model.decode(batch['xs'], recog_params)
# Get CTC probs
ctc_probs, topk_ids, xlens = model.get_ctc_probs(batch['xs'],
temperature=1,
topk=min(
100,
model.vocab))
# NOTE: ctc_probs: '[B, T, topk]'
for b in range(len(batch['xs'])):
tokens = dataloader.idx2token[0](best_hyps_id[b],
return_list=True)
spk = batch['speakers'][b]
plot_ctc_probs(
ctc_probs[b, :xlens[b]],
topk_ids[b],
subsample_factor=args.subsample_factor,
spectrogram=batch['xs'][b][:, :dataloader.input_dim],
save_path=mkdir_join(save_path, spk,
batch['utt_ids'][b] + '.png'),
figsize=(20, 8))
hyp = ' '.join(tokens)
logger.info('utt-id: %s' % batch['utt_ids'][b])
logger.info('Ref: %s' % batch['text'][b].lower())
logger.info('Hyp: %s' % hyp)
logger.info('-' * 50)
if is_new_epoch:
break
def main():
# Load configuration
args, dir_name = parse_args_eval(sys.argv[1:])
# Setting for logging
if os.path.isfile(os.path.join(args.recog_dir, 'align.log')):
os.remove(os.path.join(args.recog_dir, 'align.log'))
set_logger(os.path.join(args.recog_dir, 'align.log'),
stdout=args.recog_stdout)
for i, s in enumerate(args.recog_sets):
# Align all utterances
args.min_n_frames = 0
args.max_n_frames = 1e5
# Load dataloader
dataloader = build_dataloader(args=args,
tsv_path=s,
batch_size=args.recog_batch_size)
if i == 0:
# Load ASR model
model = Speech2Text(args, dir_name)
epoch = int(args.recog_model[0].split('-')[-1])
if args.recog_n_average > 1:
# Model averaging for Transformer
model = average_checkpoints(model,
args.recog_model[0],
n_average=args.recog_n_average)
else:
load_checkpoint(args.recog_model[0], model)
if not args.recog_unit:
args.recog_unit = args.unit
logger.info('recog unit: %s' % args.recog_unit)
logger.info('epoch: %d' % epoch)
logger.info('batch size: %d' % args.recog_batch_size)
# GPU setting
if args.recog_n_gpus >= 1:
model.cudnn_setting(deterministic=True, benchmark=False)
model.cuda()
save_path = mkdir_join(args.recog_dir, 'ctc_forced_alignments')
# Clean directory
if save_path is not None and os.path.isdir(save_path):
shutil.rmtree(save_path)
os.mkdir(save_path)
pbar = tqdm(total=len(dataloader))
while True:
batch, is_new_epoch = dataloader.next()
trigger_points = model.ctc_forced_align(batch['xs'],
batch['ys']) # `[B, L]`
for b in range(len(batch['xs'])):
save_path_spk = mkdir_join(save_path, batch['speakers'][b])
save_path_utt = mkdir_join(save_path_spk,
batch['utt_ids'][b] + '.txt')
tokens = dataloader.idx2token[0](batch['ys'][b],
return_list=True)
with codecs.open(save_path_utt, 'w', encoding="utf-8") as f:
for i, tok in enumerate(tokens):
f.write('%s %d\n' % (tok, trigger_points[b, i]))
f.write('%s %d\n' %
('<eos>', trigger_points[b, len(tokens)]))
pbar.update(len(batch['xs']))
if is_new_epoch:
break
pbar.close()
def main():
# Load configuration
args, recog_params, dir_name = parse_args_eval(sys.argv[1:])
args = compute_subsampling_factor(args)
# Setting for logging
if os.path.isfile(os.path.join(args.recog_dir, 'plot.log')):
os.remove(os.path.join(args.recog_dir, 'plot.log'))
set_logger(os.path.join(args.recog_dir, 'plot.log'),
stdout=args.recog_stdout)
for i, s in enumerate(args.recog_sets):
# Load dataloader
dataloader = build_dataloader(args=args,
tsv_path=s,
batch_size=1,
is_test=True)
if i == 0:
# Load the ASR model
model = Speech2Text(args, dir_name)
epoch = int(args.recog_model[0].split('-')[-1])
if args.recog_n_average > 1:
# Model averaging for Transformer
model = average_checkpoints(model,
args.recog_model[0],
n_average=args.recog_n_average)
else:
load_checkpoint(args.recog_model[0], model)
# Ensemble (different models)
ensemble_models = [model]
if len(args.recog_model) > 1:
for recog_model_e in args.recog_model[1:]:
conf_e = load_config(
os.path.join(os.path.dirname(recog_model_e),
'conf.yml'))
args_e = copy.deepcopy(args)
for k, v in conf_e.items():
if 'recog' not in k:
setattr(args_e, k, v)
model_e = Speech2Text(args_e)
load_checkpoint(recog_model_e, model_e)
if args.recog_n_gpus >= 1:
model_e.cuda()
ensemble_models += [model_e]
# Load the LM for shallow fusion
if not args.lm_fusion:
# first path
if args.recog_lm is not None and args.recog_lm_weight > 0:
conf_lm = load_config(
os.path.join(os.path.dirname(args.recog_lm),
'conf.yml'))
args_lm = argparse.Namespace()
for k, v in conf_lm.items():
setattr(args_lm, k, v)
lm = build_lm(args_lm)
load_checkpoint(args.recog_lm, lm)
if args_lm.backward:
model.lm_bwd = lm
else:
model.lm_fwd = lm
# NOTE: only support for first path
if not args.recog_unit:
args.recog_unit = args.unit
logger.info('recog unit: %s' % args.recog_unit)
logger.info('recog oracle: %s' % args.recog_oracle)
logger.info('epoch: %d' % epoch)
logger.info('batch size: %d' % args.recog_batch_size)
logger.info('beam width: %d' % args.recog_beam_width)
logger.info('min length ratio: %.3f' % args.recog_min_len_ratio)
logger.info('max length ratio: %.3f' % args.recog_max_len_ratio)
logger.info('length penalty: %.3f' % args.recog_length_penalty)
logger.info('length norm: %s' % args.recog_length_norm)
logger.info('coverage penalty: %.3f' % args.recog_coverage_penalty)
logger.info('coverage threshold: %.3f' %
args.recog_coverage_threshold)
logger.info('CTC weight: %.3f' % args.recog_ctc_weight)
logger.info('fist LM path: %s' % args.recog_lm)
logger.info('LM weight: %.3f' % args.recog_lm_weight)
logger.info('GNMT: %s' % args.recog_gnmt_decoding)
logger.info('forward-backward attention: %s' %
args.recog_fwd_bwd_attention)
logger.info('resolving UNK: %s' % args.recog_resolving_unk)
logger.info('ensemble: %d' % (len(ensemble_models)))
logger.info('ASR decoder state carry over: %s' %
(args.recog_asr_state_carry_over))
logger.info('LM state carry over: %s' %
(args.recog_lm_state_carry_over))
logger.info('model average (Transformer): %d' %
(args.recog_n_average))
# GPU setting
if args.recog_n_gpus >= 1:
model.cudnn_setting(deterministic=True, benchmark=False)
model.cuda()
save_path = mkdir_join(args.recog_dir, 'att_weights')
# Clean directory
if save_path is not None and os.path.isdir(save_path):
shutil.rmtree(save_path)
os.mkdir(save_path)
while True:
batch, is_new_epoch = dataloader.next(
recog_params['recog_batch_size'])
nbest_hyps_id, aws = model.decode(
batch['xs'],
recog_params,
dataloader.idx2token[0],
exclude_eos=False,
refs_id=batch['ys'],
ensemble_models=ensemble_models[1:]
if len(ensemble_models) > 1 else [],
speakers=batch['sessions']
if dataloader.corpus == 'swbd' else batch['speakers'])
best_hyps_id = [h[0] for h in nbest_hyps_id]
# Get CTC probs
ctc_probs, topk_ids = None, None
if args.ctc_weight > 0:
ctc_probs, topk_ids, xlens = model.get_ctc_probs(
batch['xs'],
task='ys',
temperature=1,
topk=min(100, model.vocab))
# NOTE: ctc_probs: '[B, T, topk]'
ctc_probs_sub1, topk_ids_sub1 = None, None
if args.ctc_weight_sub1 > 0:
ctc_probs_sub1, topk_ids_sub1, xlens_sub1 = model.get_ctc_probs(
batch['xs'],
task='ys_sub1',
temperature=1,
topk=min(100, model.vocab_sub1))
if model.bwd_weight > 0.5:
# Reverse the order
best_hyps_id = [hyp[::-1] for hyp in best_hyps_id]
aws = [[aw[0][:, ::-1]] for aw in aws]
for b in range(len(batch['xs'])):
tokens = dataloader.idx2token[0](best_hyps_id[b],
return_list=True)
spk = batch['speakers'][b]
plot_attention_weights(
aws[b][0][:, :len(tokens)],
tokens,
spectrogram=batch['xs'][b][:, :dataloader.input_dim]
if args.input_type == 'speech' else None,
factor=args.subsample_factor,
ref=batch['text'][b].lower(),
save_path=mkdir_join(save_path, spk,
batch['utt_ids'][b] + '.png'),
figsize=(20, 8),
ctc_probs=ctc_probs[b, :xlens[b]]
if ctc_probs is not None else None,
ctc_topk_ids=topk_ids[b] if topk_ids is not None else None,
ctc_probs_sub1=ctc_probs_sub1[b, :xlens_sub1[b]]
if ctc_probs_sub1 is not None else None,
ctc_topk_ids_sub1=topk_ids_sub1[b]
if topk_ids_sub1 is not None else None)
if model.bwd_weight > 0.5:
hyp = ' '.join(tokens[::-1])
else:
hyp = ' '.join(tokens)
logger.info('utt-id: %s' % batch['utt_ids'][b])
logger.info('Ref: %s' % batch['text'][b].lower())
logger.info('Hyp: %s' % hyp)
logger.info('-' * 50)
if is_new_epoch:
break
def main():
args = parse_args_train(sys.argv[1:])
args_init = copy.deepcopy(args)
args_teacher = copy.deepcopy(args)
# Load a conf file
if args.resume:
conf = load_config(
os.path.join(os.path.dirname(args.resume), 'conf.yml'))
for k, v in conf.items():
if k != 'resume':
setattr(args, k, v)
recog_params = vars(args)
args = compute_susampling_factor(args)
# for multi-GPUs
if args.n_gpus >= 1:
batch_size = args.batch_size * args.n_gpus
accum_grad_n_steps = max(1, args.accum_grad_n_steps // args.n_gpus)
else:
batch_size = args.batch_size
accum_grad_n_steps = args.accum_grad_n_steps
# Load dataloader
train_set = build_dataloader(args=args,
tsv_path=args.train_set,
tsv_path_sub1=args.train_set_sub1,
tsv_path_sub2=args.train_set_sub2,
batch_size=batch_size,
n_epochs=args.n_epochs,
sort_by='input',
short2long=args.sort_short2long,
sort_stop_epoch=args.sort_stop_epoch,
num_workers=args.n_gpus,
pin_memory=True,
alignment_dir=args.train_alignment)
dev_set = build_dataloader(args=args,
tsv_path=args.dev_set,
tsv_path_sub1=args.dev_set_sub1,
tsv_path_sub2=args.dev_set_sub2,
batch_size=batch_size,
num_workers=args.n_gpus,
pin_memory=True,
alignment_dir=args.dev_alignment)
eval_sets = [
build_dataloader(args=args, tsv_path=s, batch_size=1, is_test=True)
for s in args.eval_sets
]
args.vocab = train_set.vocab
args.vocab_sub1 = train_set.vocab_sub1
args.vocab_sub2 = train_set.vocab_sub2
args.input_dim = train_set.input_dim
# Set save path
if args.resume:
save_path = os.path.dirname(args.resume)
dir_name = os.path.basename(save_path)
else:
dir_name = set_asr_model_name(args)
if args.mbr_training:
assert args.asr_init
save_path = mkdir_join(os.path.dirname(args.asr_init), dir_name)
else:
save_path = mkdir_join(
args.model_save_dir,
'_'.join(os.path.basename(args.train_set).split('.')[:-1]),
dir_name)
save_path = set_save_path(save_path) # avoid overwriting
# Set logger
set_logger(os.path.join(save_path, 'train.log'), stdout=args.stdout)
# Load a LM conf file for LM fusion & LM initialization
if not args.resume and args.external_lm:
lm_conf = load_config(
os.path.join(os.path.dirname(args.external_lm), 'conf.yml'))
args.lm_conf = argparse.Namespace()
for k, v in lm_conf.items():
setattr(args.lm_conf, k, v)
assert args.unit == args.lm_conf.unit
assert args.vocab == args.lm_conf.vocab
# Model setting
model = Speech2Text(args, save_path, train_set.idx2token[0])
if not args.resume:
# Save the conf file as a yaml file
save_config(vars(args), os.path.join(save_path, 'conf.yml'))
if args.external_lm:
save_config(args.lm_conf, os.path.join(save_path, 'conf_lm.yml'))
# Save the nlsyms, dictionary, and wp_model
if args.nlsyms:
shutil.copy(args.nlsyms, os.path.join(save_path, 'nlsyms.txt'))
for sub in ['', '_sub1', '_sub2']:
if getattr(args, 'dict' + sub):
shutil.copy(getattr(args, 'dict' + sub),
os.path.join(save_path, 'dict' + sub + '.txt'))
if getattr(args, 'unit' + sub) == 'wp':
shutil.copy(getattr(args, 'wp_model' + sub),
os.path.join(save_path, 'wp' + sub + '.model'))
for k, v in sorted(vars(args).items(), key=lambda x: x[0]):
logger.info('%s: %s' % (k, str(v)))
# Count total parameters
for n in sorted(list(model.num_params_dict.keys())):
n_params = model.num_params_dict[n]
logger.info("%s %d" % (n, n_params))
logger.info("Total %.2f M parameters" %
(model.total_parameters / 1000000))
logger.info(model)
# Initialize with pre-trained model's parameters
if args.asr_init:
# Load the ASR model (full model)
conf_init = load_config(
os.path.join(os.path.dirname(args.asr_init), 'conf.yml'))
for k, v in conf_init.items():
setattr(args_init, k, v)
model_init = Speech2Text(args_init)
load_checkpoint(args.asr_init, model_init)
# Overwrite parameters
param_dict = dict(model_init.named_parameters())
for n, p in model.named_parameters():
if n in param_dict.keys() and p.size() == param_dict[n].size():
if args.asr_init_enc_only and 'enc' not in n:
continue
p.data = param_dict[n].data
logger.info('Overwrite %s' % n)
# Set optimizer
if args.resume:
resume_epoch = int(args.resume.split('-')[-1])
optimizer = set_optimizer(
model, 'sgd' if resume_epoch > args.convert_to_sgd_epoch else
args.optimizer, args.lr, args.weight_decay)
else:
resume_epoch = 0
optimizer = set_optimizer(model, args.optimizer, args.lr,
args.weight_decay)
# Wrap optimizer by learning rate scheduler
is_transformer = 'former' in args.enc_type or 'former' in args.dec_type
scheduler = LRScheduler(
optimizer,
args.lr,
decay_type=args.lr_decay_type,
decay_start_epoch=args.lr_decay_start_epoch,
decay_rate=args.lr_decay_rate,
decay_patient_n_epochs=args.lr_decay_patient_n_epochs,
early_stop_patient_n_epochs=args.early_stop_patient_n_epochs,
lower_better=args.metric not in ['accuracy', 'bleu'],
warmup_start_lr=args.warmup_start_lr,
warmup_n_steps=args.warmup_n_steps,
model_size=getattr(args, 'transformer_d_model', 0),
factor=args.lr_factor,
noam=args.optimizer == 'noam',
save_checkpoints_topk=10 if is_transformer else 1)
if args.resume:
# Restore the last saved model
load_checkpoint(args.resume, model, scheduler)
# Resume between convert_to_sgd_epoch -1 and convert_to_sgd_epoch
if resume_epoch == args.convert_to_sgd_epoch:
scheduler.convert_to_sgd(model,
args.lr,
args.weight_decay,
decay_type='always',
decay_rate=0.5)
# Load the teacher ASR model
teacher = None
if args.teacher:
assert os.path.isfile(args.teacher), 'There is no checkpoint.'
conf_teacher = load_config(
os.path.join(os.path.dirname(args.teacher), 'conf.yml'))
for k, v in conf_teacher.items():
setattr(args_teacher, k, v)
# Setting for knowledge distillation
args_teacher.ss_prob = 0
args.lsm_prob = 0
teacher = Speech2Text(args_teacher)
load_checkpoint(args.teacher, teacher)
# Load the teacher LM
teacher_lm = None
if args.teacher_lm:
assert os.path.isfile(args.teacher_lm), 'There is no checkpoint.'
conf_lm = load_config(
os.path.join(os.path.dirname(args.teacher_lm), 'conf.yml'))
args_lm = argparse.Namespace()
for k, v in conf_lm.items():
setattr(args_lm, k, v)
teacher_lm = build_lm(args_lm)
load_checkpoint(args.teacher_lm, teacher_lm)
# GPU setting
use_apex = args.train_dtype in ["O0", "O1", "O2", "O3"]
amp = None
if args.n_gpus >= 1:
model.cudnn_setting(
deterministic=not (is_transformer or args.cudnn_benchmark),
benchmark=not is_transformer and args.cudnn_benchmark)
model.cuda()
# Mixed precision training setting
if use_apex:
from apex import amp
model, scheduler.optimizer = amp.initialize(
model, scheduler.optimizer, opt_level=args.train_dtype)
from neural_sp.models.seq2seq.decoders.ctc import CTC
amp.register_float_function(CTC, "loss_fn")
# NOTE: see https://github.com/espnet/espnet/pull/1779
amp.init()
if args.resume:
load_checkpoint(args.resume, amp=amp)
model = CustomDataParallel(model,
device_ids=list(range(0, args.n_gpus)))
if teacher is not None:
teacher.cuda()
if teacher_lm is not None:
teacher_lm.cuda()
else:
model = CPUWrapperASR(model)
# Set process name
logger.info('PID: %s' % os.getpid())
logger.info('USERNAME: %s' % os.uname()[1])
logger.info('#GPU: %d' % torch.cuda.device_count())
setproctitle(args.job_name if args.job_name else dir_name)
# Set reporter
reporter = Reporter(save_path)
if args.mtl_per_batch:
# NOTE: from easier to harder tasks
tasks = []
if 1 - args.bwd_weight - args.ctc_weight - args.sub1_weight - args.sub2_weight > 0:
tasks += ['ys']
if args.bwd_weight > 0:
tasks = ['ys.bwd'] + tasks
if args.ctc_weight > 0:
tasks = ['ys.ctc'] + tasks
if args.mbr_ce_weight > 0:
tasks = ['ys.mbr'] + tasks
for sub in ['sub1', 'sub2']:
if getattr(args, 'train_set_' + sub):
if getattr(args, sub + '_weight') - getattr(
args, 'ctc_weight_' + sub) > 0:
tasks = ['ys_' + sub] + tasks
if getattr(args, 'ctc_weight_' + sub) > 0:
tasks = ['ys_' + sub + '.ctc'] + tasks
else:
tasks = ['all']
start_time_train = time.time()
start_time_epoch = time.time()
start_time_step = time.time()
accum_n_steps = 0
n_steps = scheduler.n_steps * accum_grad_n_steps
epoch_detail_prev = 0
for ep in range(resume_epoch, args.n_epochs):
pbar_epoch = tqdm(total=len(train_set))
session_prev = None
for batch_train, is_new_epoch in train_set:
# Compute loss in the training set
if args.discourse_aware and batch_train['sessions'][
0] != session_prev:
model.module.reset_session()
session_prev = batch_train['sessions'][0]
accum_n_steps += 1
# Change mini-batch depending on task
if accum_n_steps == 1:
loss_train = 0 # average over gradient accumulation
for task in tasks:
loss, observation = model(batch_train,
task=task,
teacher=teacher,
teacher_lm=teacher_lm)
loss = loss / accum_n_steps
reporter.add(observation)
if use_apex:
with amp.scale_loss(loss,
scheduler.optimizer) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss.detach() # Trancate the graph
if accum_n_steps >= accum_grad_n_steps or is_new_epoch:
if args.clip_grad_norm > 0:
total_norm = torch.nn.utils.clip_grad_norm_(
model.module.parameters(), args.clip_grad_norm)
reporter.add_tensorboard_scalar(
'total_norm', total_norm)
scheduler.step()
scheduler.zero_grad()
accum_n_steps = 0
# NOTE: parameters are forcibly updated at the end of every epoch
loss_train += loss.item()
del loss
pbar_epoch.update(len(batch_train['utt_ids']))
reporter.add_tensorboard_scalar('learning_rate', scheduler.lr)
# NOTE: loss/acc/ppl are already added in the model
reporter.step()
n_steps += 1
# NOTE: n_steps is different from the step counter in Noam Optimizer
if n_steps % args.print_step == 0:
# Compute loss in the dev set
batch_dev = iter(dev_set).next(
batch_size=1 if 'transducer' in args.dec_type else None)[0]
# Change mini-batch depending on task
for task in tasks:
loss, observation = model(batch_dev,
task=task,
is_eval=True)
reporter.add(observation, is_eval=True)
loss_dev = loss.item()
del loss
reporter.step(is_eval=True)
duration_step = time.time() - start_time_step
if args.input_type == 'speech':
xlen = max(len(x) for x in batch_train['xs'])
ylen = max(len(y) for y in batch_train['ys'])
elif args.input_type == 'text':
xlen = max(len(x) for x in batch_train['ys'])
ylen = max(len(y) for y in batch_train['ys_sub1'])
logger.info(
"step:%d(ep:%.2f) loss:%.3f(%.3f)/lr:%.7f/bs:%d/xlen:%d/ylen:%d (%.2f min)"
% (n_steps, scheduler.n_epochs + train_set.epoch_detail,
loss_train, loss_dev, scheduler.lr,
len(batch_train['utt_ids']), xlen, ylen,
duration_step / 60))
start_time_step = time.time()
# Save fugures of loss and accuracy
if n_steps % (args.print_step * 10) == 0:
reporter.snapshot()
model.module.plot_attention()
model.module.plot_ctc()
# Ealuate model every 0.1 epoch during MBR training
if args.mbr_training:
if int(train_set.epoch_detail * 10) != int(
epoch_detail_prev * 10):
# dev
evaluate([model.module], dev_set, recog_params, args,
int(train_set.epoch_detail * 10) / 10, logger)
# Save the model
scheduler.save_checkpoint(
model,
save_path,
remove_old=False,
amp=amp,
epoch_detail=train_set.epoch_detail)
epoch_detail_prev = train_set.epoch_detail
if is_new_epoch:
break
# Save checkpoint and evaluate model per epoch
duration_epoch = time.time() - start_time_epoch
logger.info('========== EPOCH:%d (%.2f min) ==========' %
(scheduler.n_epochs + 1, duration_epoch / 60))
if scheduler.n_epochs + 1 < args.eval_start_epoch:
scheduler.epoch() # lr decay
reporter.epoch() # plot
# Save the model
scheduler.save_checkpoint(model,
save_path,
remove_old=not is_transformer
and args.remove_old_checkpoints,
amp=amp)
else:
start_time_eval = time.time()
# dev
metric_dev = evaluate([model.module], dev_set, recog_params, args,
scheduler.n_epochs + 1, logger)
scheduler.epoch(metric_dev) # lr decay
reporter.epoch(metric_dev, name=args.metric) # plot
if scheduler.is_topk or is_transformer:
# Save the model
scheduler.save_checkpoint(model,
save_path,
remove_old=not is_transformer
and args.remove_old_checkpoints,
amp=amp)
# test
if scheduler.is_topk:
for eval_set in eval_sets:
evaluate([model.module], eval_set, recog_params, args,
scheduler.n_epochs, logger)
duration_eval = time.time() - start_time_eval
logger.info('Evaluation time: %.2f min' % (duration_eval / 60))
# Early stopping
if scheduler.is_early_stop:
break
# Convert to fine-tuning stage
if scheduler.n_epochs == args.convert_to_sgd_epoch:
scheduler.convert_to_sgd(model,
args.lr,
args.weight_decay,
decay_type='always',
decay_rate=0.5)
if scheduler.n_epochs >= args.n_epochs:
break
# if args.ss_prob > 0:
# model.module.scheduled_sampling_trigger()
start_time_step = time.time()
start_time_epoch = time.time()
duration_train = time.time() - start_time_train
logger.info('Total time: %.2f hour' % (duration_train / 3600))
reporter.tf_writer.close()
pbar_epoch.close()
return save_path
def main():
# Load configuration
args, recog_params, dir_name = parse_args_eval(sys.argv[1:])
args = compute_subsampling_factor(args)
# Setting for logging
if os.path.isfile(os.path.join(args.recog_dir, 'decode.log')):
os.remove(os.path.join(args.recog_dir, 'decode.log'))
set_logger(os.path.join(args.recog_dir, 'decode.log'),
stdout=args.recog_stdout)
wer_avg, cer_avg, per_avg = 0, 0, 0
ppl_avg, loss_avg = 0, 0
acc_avg = 0
bleu_avg = 0
for i, s in enumerate(args.recog_sets):
# Load dataloader
dataloader = build_dataloader(
args=args,
tsv_path=s,
batch_size=1,
is_test=True,
first_n_utterances=args.recog_first_n_utt)
if i == 0:
# Load ASR model
model = Speech2Text(args, dir_name)
epoch = int(float(args.recog_model[0].split('-')[-1]) * 10) / 10
if args.recog_n_average > 1:
# Model averaging for Transformer
# topk_list = load_checkpoint(args.recog_model[0], model)
model = average_checkpoints(
model,
args.recog_model[0],
# topk_list=topk_list,
n_average=args.recog_n_average)
else:
load_checkpoint(args.recog_model[0], model)
# Ensemble (different models)
ensemble_models = [model]
if len(args.recog_model) > 1:
for recog_model_e in args.recog_model[1:]:
conf_e = load_config(
os.path.join(os.path.dirname(recog_model_e),
'conf.yml'))
args_e = copy.deepcopy(args)
for k, v in conf_e.items():
if 'recog' not in k:
setattr(args_e, k, v)
model_e = Speech2Text(args_e)
load_checkpoint(recog_model_e, model_e)
if args.recog_n_gpus >= 1:
model_e.cuda()
ensemble_models += [model_e]
# Load LM for shallow fusion
if not args.lm_fusion:
# first path
if args.recog_lm is not None and args.recog_lm_weight > 0:
conf_lm = load_config(
os.path.join(os.path.dirname(args.recog_lm),
'conf.yml'))
args_lm = argparse.Namespace()
for k, v in conf_lm.items():
setattr(args_lm, k, v)
args_lm.recog_mem_len = args.recog_mem_len
lm = build_lm(args_lm,
wordlm=args.recog_wordlm,
lm_dict_path=os.path.join(
os.path.dirname(args.recog_lm),
'dict.txt'),
asr_dict_path=os.path.join(
dir_name, 'dict.txt'))
load_checkpoint(args.recog_lm, lm)
if args_lm.backward:
model.lm_bwd = lm
else:
model.lm_fwd = lm
# second path (forward)
if args.recog_lm_second is not None and args.recog_lm_second_weight > 0:
conf_lm_second = load_config(
os.path.join(os.path.dirname(args.recog_lm_second),
'conf.yml'))
args_lm_second = argparse.Namespace()
for k, v in conf_lm_second.items():
setattr(args_lm_second, k, v)
args_lm_second.recog_mem_len = args.recog_mem_len
lm_second = build_lm(args_lm_second)
load_checkpoint(args.recog_lm_second, lm_second)
model.lm_second = lm_second
# second path (backward)
if args.recog_lm_bwd is not None and args.recog_lm_bwd_weight > 0:
conf_lm = load_config(
os.path.join(os.path.dirname(args.recog_lm_bwd),
'conf.yml'))
args_lm_bwd = argparse.Namespace()
for k, v in conf_lm.items():
setattr(args_lm_bwd, k, v)
args_lm_bwd.recog_mem_len = args.recog_mem_len
lm_bwd = build_lm(args_lm_bwd)
load_checkpoint(args.recog_lm_bwd, lm_bwd)
model.lm_bwd = lm_bwd
if not args.recog_unit:
args.recog_unit = args.unit
logger.info('recog unit: %s' % args.recog_unit)
logger.info('recog metric: %s' % args.recog_metric)
logger.info('recog oracle: %s' % args.recog_oracle)
logger.info('epoch: %d' % epoch)
logger.info('batch size: %d' % args.recog_batch_size)
logger.info('beam width: %d' % args.recog_beam_width)
logger.info('min length ratio: %.3f' % args.recog_min_len_ratio)
logger.info('max length ratio: %.3f' % args.recog_max_len_ratio)
logger.info('length penalty: %.3f' % args.recog_length_penalty)
logger.info('length norm: %s' % args.recog_length_norm)
logger.info('coverage penalty: %.3f' % args.recog_coverage_penalty)
logger.info('coverage threshold: %.3f' %
args.recog_coverage_threshold)
logger.info('CTC weight: %.3f' % args.recog_ctc_weight)
logger.info('fist LM path: %s' % args.recog_lm)
logger.info('second LM path: %s' % args.recog_lm_second)
logger.info('backward LM path: %s' % args.recog_lm_bwd)
logger.info('LM weight (first-pass): %.3f' % args.recog_lm_weight)
logger.info('LM weight (second-pass): %.3f' %
args.recog_lm_second_weight)
logger.info('LM weight (backward): %.3f' %
args.recog_lm_bwd_weight)
logger.info('GNMT: %s' % args.recog_gnmt_decoding)
logger.info('forward-backward attention: %s' %
args.recog_fwd_bwd_attention)
logger.info('resolving UNK: %s' % args.recog_resolving_unk)
logger.info('ensemble: %d' % (len(ensemble_models)))
logger.info('ASR decoder state carry over: %s' %
(args.recog_asr_state_carry_over))
logger.info('LM state carry over: %s' %
(args.recog_lm_state_carry_over))
logger.info('model average (Transformer): %d' %
(args.recog_n_average))
# GPU setting
if args.recog_n_gpus >= 1:
model.cudnn_setting(deterministic=True, benchmark=False)
model.cuda()
start_time = time.time()
if args.recog_metric == 'edit_distance':
if args.recog_unit in ['word', 'word_char']:
wer, cer, _ = eval_word(ensemble_models,
dataloader,
recog_params,
epoch=epoch - 1,
recog_dir=args.recog_dir,
progressbar=True,
fine_grained=True,
oracle=True)
wer_avg += wer
cer_avg += cer
elif args.recog_unit == 'wp':
wer, cer = eval_wordpiece(ensemble_models,
dataloader,
recog_params,
epoch=epoch - 1,
recog_dir=args.recog_dir,
streaming=args.recog_streaming,
progressbar=True,
fine_grained=True,
oracle=True)
wer_avg += wer
cer_avg += cer
elif 'char' in args.recog_unit:
wer, cer = eval_char(ensemble_models,
dataloader,
recog_params,
epoch=epoch - 1,
recog_dir=args.recog_dir,
progressbar=True,
task_idx=0,
fine_grained=True,
oracle=True)
# task_idx=1 if args.recog_unit and 'char' in args.recog_unit else 0)
wer_avg += wer
cer_avg += cer
elif 'phone' in args.recog_unit:
per = eval_phone(ensemble_models,
dataloader,
recog_params,
epoch=epoch - 1,
recog_dir=args.recog_dir,
progressbar=True,
fine_grained=True,
oracle=True)
per_avg += per
else:
raise ValueError(args.recog_unit)
elif args.recog_metric in ['ppl', 'loss']:
ppl, loss = eval_ppl(ensemble_models, dataloader, progressbar=True)
ppl_avg += ppl
loss_avg += loss
elif args.recog_metric == 'accuracy':
acc_avg += eval_accuracy(ensemble_models,
dataloader,
progressbar=True)
elif args.recog_metric == 'bleu':
bleu = eval_wordpiece_bleu(ensemble_models,
dataloader,
recog_params,
epoch=epoch - 1,
recog_dir=args.recog_dir,
streaming=args.recog_streaming,
progressbar=True,
fine_grained=True,
oracle=True)
bleu_avg += bleu
else:
raise NotImplementedError(args.recog_metric)
elapsed_time = time.time() - start_time
logger.info('Elapsed time: %.3f [sec]' % elapsed_time)
logger.info('RTF: %.3f' % (elapsed_time /
(dataloader.n_frames * 0.01)))
if args.recog_metric == 'edit_distance':
if 'phone' in args.recog_unit:
logger.info('PER (avg.): %.2f %%\n' %
(per_avg / len(args.recog_sets)))
else:
logger.info('WER / CER (avg.): %.2f / %.2f %%\n' %
(wer_avg / len(args.recog_sets),
cer_avg / len(args.recog_sets)))
elif args.recog_metric in ['ppl', 'loss']:
logger.info('PPL (avg.): %.2f\n' % (ppl_avg / len(args.recog_sets)))
print('PPL (avg.): %.3f' % (ppl_avg / len(args.recog_sets)))
logger.info('Loss (avg.): %.2f\n' % (loss_avg / len(args.recog_sets)))
print('Loss (avg.): %.3f' % (loss_avg / len(args.recog_sets)))
elif args.recog_metric == 'accuracy':
logger.info('Accuracy (avg.): %.2f\n' %
(acc_avg / len(args.recog_sets)))
print('Accuracy (avg.): %.3f' % (acc_avg / len(args.recog_sets)))
elif args.recog_metric == 'bleu':
logger.info('BLEU (avg.): %.2f\n' % (bleu / len(args.recog_sets)))
print('BLEU (avg.): %.3f' % (bleu / len(args.recog_sets)))
