def main():
model = Tacotron().to(DEVICE)
print('Model {} is working...'.format(model.name))
print('{} threads are used...'.format(torch.get_num_threads()))
ckpt_dir = os.path.join(args.logdir, model.name)
optimizer = torch.optim.Adam(model.parameters(), lr=args.lr)
scheduler = StepLR(optimizer,
step_size=args.lr_decay_step // 10,
gamma=0.933) # around 1/2 per decay step
if not os.path.exists(ckpt_dir):
os.makedirs(os.path.join(ckpt_dir, 'A', 'train'))
elif not os.path.exists(os.path.join(ckpt_dir, 'ckpt.csv')):
shutil.rmtree(ckpt_dir)
os.makedirs(os.path.join(ckpt_dir, 'A', 'train'))
else:
print('Already exists. Retrain the model.')
ckpt = pd.read_csv(os.path.join(ckpt_dir, 'ckpt.csv'),
sep=',',
header=None)
ckpt.columns = ['models', 'loss']
ckpt = ckpt.sort_values(by='loss', ascending=True)
state = torch.load(os.path.join(ckpt_dir, ckpt.models.loc[0]))
model.load_state_dict(state['model'])
args.global_step = state['global_step']
optimizer.load_state_dict(state['optimizer'])
scheduler.load_state_dict(state['scheduler'])
# model = torch.nn.DataParallel(model, device_ids=list(range(args.no_gpu))).to(DEVICE)
dataset = SpeechDataset(args.data_path,
args.meta_train,
model.name,
mem_mode=args.mem_mode)
validset = SpeechDataset(args.data_path,
args.meta_eval,
model.name,
mem_mode=args.mem_mode)
data_loader = DataLoader(dataset=dataset,
batch_size=args.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
pin_memory=True)
valid_loader = DataLoader(dataset=validset,
batch_size=args.test_batch,
shuffle=False,
collate_fn=collate_fn,
pin_memory=True)
writer = SummaryWriter(ckpt_dir)
train(model,
data_loader,
valid_loader,
optimizer,
scheduler,
batch_size=args.batch_size,
ckpt_dir=ckpt_dir,
writer=writer)
return None
def main():
G = SSRN().to(DEVICE)
D = MultiScaleDiscriminator().to(DEVICE)
print('{} threads are used...'.format(torch.get_num_threads()))
ckpt_dir = os.path.join(args.logdir, type(G).__name__)
G_optim = torch.optim.Adam(G.parameters(), lr=args.lr)
D_optim = torch.optim.Adam(D.parameters(), lr=args.lr)
# scheduler = MultiStepLR(optimizer, milestones=[100000, 200000], gamma=0.5)
if not os.path.exists(ckpt_dir):
os.makedirs(os.path.join(ckpt_dir, 'A', 'train'))
else:
print('Already exists. Retrain the model.')
import pdb
pdb.set_trace()
ckpt = sorted(
glob.glob(
os.path.join(ckpt_dir,
'{}-*k.pth.tar'.format(type(G).__name__))))
state = torch.load(ckpt[-1])
args.global_step = state['global_step']
G.load_state_dict(state['model'])
G_optim.load_state_dict(state['optimizer'])
# ckpt = sorted(glob.glob(os.path.join(ckpt_dir, '{}-*k.pth'.format(type(D).__name__))))
# state = torch.load(ckpt[-1])
# D.load_state_dict(state['model'])
# D_optim.load_state_dict(state['optimizer'])
dataset = SpeechDataset(args.data_path,
args.meta_train,
type(G).__name__,
mem_mode=args.mem_mode)
validset = SpeechDataset(args.data_path,
args.meta_eval,
type(G).__name__,
mem_mode=args.mem_mode)
data_loader = DataLoader(dataset=dataset,
batch_size=args.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
pin_memory=True,
num_workers=args.n_workers)
valid_loader = DataLoader(dataset=validset,
batch_size=args.test_batch,
shuffle=False,
collate_fn=collate_fn)
writer = SummaryWriter(ckpt_dir)
train(G,
D,
data_loader,
valid_loader,
G_optim,
D_optim,
batch_size=args.batch_size,
ckpt_dir=ckpt_dir,
writer=writer)
return None
def main(network):
if network == 'text2mel':
model = Text2Mel().to(DEVICE)
elif network == 'ssrn':
model = SSRN().to(DEVICE)
else:
print('Wrong network. {text2mel, ssrn}')
return
print('Model {} is working...'.format(type(model).__name__))
print('{} threads are used...'.format(torch.get_num_threads()))
ckpt_dir = os.path.join(args.logdir, type(model).__name__)
optimizer = torch.optim.Adam(model.parameters(), lr=args.lr)
scheduler = MultiStepLR(optimizer, milestones=[50000, 150000, 300000], gamma=0.5) #
if not os.path.exists(ckpt_dir):
os.makedirs(os.path.join(ckpt_dir, 'A', 'train'))
else:
print('Already exists. Retrain the model.')
ckpt = sorted(glob.glob(os.path.join(ckpt_dir, '*k.pth.tar')))[-1]
state = torch.load(ckpt)
model.load_state_dict(state['model'])
args.global_step = state['global_step']
optimizer.load_state_dict(state['optimizer'])
# scheduler.load_state_dict(state['scheduler'])
# model = torch.nn.DataParallel(model, device_ids=list(range(args.no_gpu))).to(DEVICE)
if type(model).__name__ == 'Text2Mel':
if args.ga_mode:
cfn_train, cfn_eval = t2m_ga_collate_fn, t2m_collate_fn
else:
cfn_train, cfn_eval = t2m_collate_fn, t2m_collate_fn
else:
cfn_train, cfn_eval = collate_fn, collate_fn
dataset = SpeechDataset(args.data_path, args.meta_train, type(model).__name__, mem_mode=args.mem_mode, ga_mode=args.ga_mode)
validset = SpeechDataset(args.data_path, args.meta_eval, type(model).__name__, mem_mode=args.mem_mode)
data_loader = DataLoader(dataset=dataset, batch_size=args.batch_size,
shuffle=True, collate_fn=cfn_train,
drop_last=True, pin_memory=True)
valid_loader = DataLoader(dataset=validset, batch_size=args.test_batch,
shuffle=False, collate_fn=cfn_eval, pin_memory=True)
writer = SummaryWriter(ckpt_dir)
train(model, data_loader, valid_loader, optimizer, scheduler,
batch_size=args.batch_size, ckpt_dir=ckpt_dir, writer=writer)
return None
def main(mode):
t2m = Text2Mel().to(DEVICE)
ssrn = SSRN().to(DEVICE)
if mode == "train":
dataset = SpeechDataset(args.data_path, args.meta_train, "Text2Mel", mem_mode=args.mem_mode)
elif mode=="test":
dataset = SpeechDataset(args.data_path, args.meta_test, "Text2Mel", mem_mode=args.mem_mode)
elif mode=="eval":
dataset = SpeechDataset(args.data_path, args.meta_eval, "Text2Mel", mem_mode=args.mem_mode)
else:
print('[ERROR] Please set correct type: TRAIN or TEST!' )
exit(0)
data_loader = DataLoader(dataset=dataset, batch_size=args.mse_batch,
shuffle=False, collate_fn=t2m_collate_fn, pin_memory=True)
ckpt = pd.read_csv(os.path.join(args.logdir, t2m.name, 'ckpt.csv'), sep=',', header=None)
ckpt.columns = ['models', 'loss']
ckpt = ckpt.sort_values(by='loss', ascending=True)
state = torch.load(os.path.join(args.logdir, t2m.name, ckpt.models.loc[0]))
t2m.load_state_dict(state['model'])
args.global_step = state['global_step']
ckpt = pd.read_csv(os.path.join(args.logdir, ssrn.name, 'ckpt.csv'), sep=',', header=None)
ckpt.columns = ['models', 'loss']
ckpt = ckpt.sort_values(by='loss', ascending=True)
state = torch.load(os.path.join(args.logdir, ssrn.name, ckpt.models.loc[0]))
ssrn.load_state_dict(state['model'])
print('All of models are loaded.')
t2m.eval()
ssrn.eval()
if not os.path.exists(os.path.join(args.sampledir, 'A')):
os.makedirs(os.path.join(args.sampledir, 'A'))
return calculate_MSE(t2m=t2m, ssrn=ssrn, data_loader=data_loader, batch_size=args.mse_batch)
def main():
model = DCTTS(args).to(DEVICE)
print('Model {} is working...'.format(args.model_name))
print('{} threads are used...'.format(torch.get_num_threads()))
ckpt_dir = os.path.join(args.logdir, args.model_name)
optimizer = torch.optim.Adam(model.parameters(), lr=args.lr)
# scheduler = MultiStepLR(optimizer, milestones=[50000, 150000, 300000], gamma=0.5) #
scheduler = LambdaLR(optimizer, lr_policy)
if not os.path.exists(ckpt_dir):
os.makedirs(os.path.join(ckpt_dir, 'A', 'train'))
if args.pretrained_path is not None:
print('Train with pretrained model {}'.format(args.pretrained_path))
state = torch.load(args.pretrained_path)
model.custom_load_state_dict(state['model'])
else:
print('Already exists. Retrain the model.')
ckpt = sorted(glob.glob(os.path.join(ckpt_dir, '*k.pth.tar')))[-1]
state = torch.load(ckpt)
model.load_state_dict(state['model'])
args.global_step = state['global_step']
optimizer.load_state_dict(state['optimizer'])
# scheduler.load_state_dict(state['scheduler'])
# model = torch.nn.DataParallel(model, device_ids=list(range(args.no_gpu))).to(DEVICE)
dataset = SpeechDataset(args.data_path, args.meta_train, mem_mode=args.mem_mode)
validset = SpeechDataset(args.data_path, args.meta_eval, mem_mode=args.mem_mode)
data_loader = DataLoader(dataset=dataset, batch_size=args.batch_size,
shuffle=True, collate_fn=t2m_ga_collate_fn,
drop_last=True, pin_memory=True)
valid_loader = DataLoader(dataset=validset, batch_size=args.test_batch,
shuffle=False, collate_fn=t2m_ga_collate_fn, pin_memory=True)
writer = SummaryWriter(ckpt_dir)
train(model, data_loader, valid_loader, optimizer, scheduler,
batch_size=args.batch_size, ckpt_dir=ckpt_dir, writer=writer)
return None
def main():
ssrn = SSRN().to(DEVICE)
mname = type(ssrn).__name__
ckpt = sorted(
glob.glob(os.path.join(args.logdir, mname, '{}-*k.pth'.format(mname))))
state = torch.load(ckpt[-1])
ssrn.load_state_dict(state['model'])
if not os.path.exists(args.testdir):
os.makedirs(args.testdir)
validset = SpeechDataset(args.data_path,
args.meta_eval,
type(ssrn).__name__,
mem_mode=args.mem_mode)
valid_loader = DataLoader(dataset=validset,
batch_size=args.test_batch,
shuffle=False,
collate_fn=collate_fn)
evaluate(ssrn, valid_loader, args.test_batch)
return None
def main(DEVICE):
"""
main function
:param DEVICE: 'cpu' or 'gpu'
"""
model = TPGST().to(DEVICE)
print('Model {} is working...'.format(type(model).__name__))
ckpt_dir = os.path.join(args.logdir, type(model).__name__)
optimizer = torch.optim.Adam(model.parameters(), lr=args.lr)
scheduler = LambdaLR(optimizer, lr_policy)
if not os.path.exists(ckpt_dir):
os.makedirs(os.path.join(ckpt_dir, 'A', 'train'))
else:
print('Already exists. Retrain the model.')
model_path = sorted(glob.glob(os.path.join(
ckpt_dir, 'model-*.tar')))[-1] # latest model
state = torch.load(model_path)
model.load_state_dict(state['model'])
args.global_step = state['global_step']
optimizer.load_state_dict(state['optimizer'])
scheduler.last_epoch = state['scheduler']['last_epoch']
scheduler.base_lrs = state['scheduler']['base_lrs']
dataset = SpeechDataset(args.data_path,
args.meta,
mem_mode=args.mem_mode,
training=True)
validset = SpeechDataset(args.data_path,
args.meta,
mem_mode=args.mem_mode,
training=False)
data_loader = DataLoader(dataset=dataset,
batch_size=args.batch_size,
shuffle=True,
collate_fn=collate_fn,
drop_last=True,
pin_memory=True,
num_workers=args.n_workers)
valid_loader = DataLoader(dataset=validset,
batch_size=args.test_batch,
shuffle=False,
collate_fn=collate_fn,
pin_memory=True)
# torch.set_num_threads(4)
print('{} threads are used...'.format(torch.get_num_threads()))
writer = SummaryWriter(ckpt_dir)
train(model,
data_loader,
valid_loader,
optimizer,
scheduler,
batch_size=args.batch_size,
ckpt_dir=ckpt_dir,
writer=writer,
DEVICE=DEVICE)
return None
def main():
#if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument("-config")
parser.add_argument("-model_path")
parser.add_argument("-data")
parser.add_argument("-data_path",
default='',
type=str,
help="path of data files")
parser.add_argument("-prior_path",
default=None,
help="the path to load the final.occs file")
parser.add_argument("-transform",
help="feature transformation matrix or mvn statistics")
parser.add_argument("-out_file",
help="write out the log-probs to this file")
parser.add_argument("-batch_size",
default=32,
type=int,
help="Override the batch size in the config")
parser.add_argument("-sweep_size",
default=200,
type=float,
help="process n hours of data per sweep (default:60)")
parser.add_argument("-frame_subsampling_factor",
default=1,
type=int,
help="the factor to subsample the features")
parser.add_argument("-data_loader_threads",
default=4,
type=int,
help="number of workers for data loading")
args = parser.parse_args()
with open(args.config) as f:
config = yaml.safe_load(f)
config["sweep_size"] = args.sweep_size
config["source_paths"] = list()
data_config = dict()
data_config["type"] = "Eval"
data_config["wav"] = args.data
config["source_paths"].append(data_config)
config["data_path"] = args.data_path
print("job starts with config {}".format(
json.dumps(config, sort_keys=True, indent=4)))
transform = None
if args.transform is not None and os.path.isfile(args.transform):
with open(args.transform, 'rb') as f:
transform = pickle.load(f)
dataset = SpeechDataset(config)
print(transform)
test_dataloader = SeqDataloader(dataset,
batch_size=args.batch_size,
test_only=True,
global_mvn=True,
transform=transform)
print("Data loader set up successfully!")
print("Number of minibatches: {}".format(len(test_dataloader)))
# ceate model
model_config = config["model_config"]
lstm = LSTMStack(model_config["feat_dim"], model_config["hidden_size"],
model_config["num_layers"], model_config["dropout"], True)
model = NnetAM(lstm, model_config["hidden_size"] * 2,
model_config["label_size"])
device = th.device("cuda:1" if th.cuda.is_available() else "cpu")
model.cuda()
assert os.path.isfile(
args.model_path), "ERROR: model file {} does not exit!".format(
args.model_path)
checkpoint = th.load(args.model_path, map_location='cuda:0')
state_dict = checkpoint['model']
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
header = k[:7]
name = k[7:] # remove 'module.' of dataparallel
new_state_dict[name] = v
if header == "module.":
model.load_state_dict(new_state_dict)
else:
model.load_state_dict(state_dict)
print("=> loaded checkpoint '{}' ".format(args.model_path))
log_prior = None
if (args.prior_path):
prior = read_matrix(args.prior_path).numpy()
log_prior = th.tensor(np.log(prior[0] / np.sum(prior[0])),
dtype=th.float)
model.eval()
with th.no_grad():
with MatrixWriter("ark:" + args.out_file) as llout:
for i, data in enumerate(test_dataloader):
feat = data["x"]
num_frs = data["num_frs"]
utt_ids = data["utt_ids"]
x = feat.to(th.float32)
if (args.frame_subsampling_factor > 1):
x = x.unfold(1, 1,
args.frame_subsampling_factor).squeeze(-1)
x = x.cuda()
prediction = model(x)
# save only unpadded part for each utt in batch
for j in range(len(num_frs)):
loglikes = prediction[j, :, :].data.cpu()
loglikes_j = loglikes[:num_frs[j], :]
if (log_prior):
loglikes_j = loglikes_j - log_prior
llout[utt_ids[j][0]] = loglikes_j
print("Process batch [{}/{}]".format(i + 1,
len(test_dataloader)))
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-config")
parser.add_argument("-model_path")
parser.add_argument("-data_path")
parser.add_argument("-prior_path",
help="the path to load the final.occs file")
parser.add_argument("-out_file",
help="write out the log-probs to this file")
parser.add_argument("-transform",
help="feature transformation matrix or mvn statistics")
parser.add_argument(
"-trans_model",
help="the HMM transistion model, used for lattice generation")
parser.add_argument("-graph_dir", help="the decoding graph directory")
parser.add_argument("-batch_size",
default=32,
type=int,
help="Override the batch size in the config")
parser.add_argument("-sweep_size",
default=200,
type=float,
help="process n hours of data per sweep (default:60)")
parser.add_argument("-data_loader_threads",
default=4,
type=int,
help="number of workers for data loading")
args = parser.parse_args()
with open(args.config) as f:
config = yaml.safe_load(f)
config["sweep_size"] = args.sweep_size
config["source_paths"] = list()
data_config = dict()
data_config["type"] = "Eval"
data_config["wav"] = args.data_path
config["source_paths"].append(data_config)
print("job starts with config {}".format(
json.dumps(config, sort_keys=True, indent=4)))
transform = None
if args.transform is not None and os.path.isfile(args.transform):
with open(args.transform, 'rb') as f:
transform = pickle.load(f)
dataset = SpeechDataset(config)
#data = trainset.__getitem__(0)
test_dataloader = SeqDataloader(dataset,
batch_size=args.batch_size,
test_only=True,
global_mvn=True,
transform=transform)
print("Data loader set up successfully!")
print("Number of minibatches: {}".format(len(test_dataloader)))
# ceate model
model_config = config["model_config"]
lstm = LSTMStack(model_config["feat_dim"], model_config["hidden_size"],
model_config["num_layers"], model_config["dropout"], True)
model = NnetAM(lstm, model_config["hidden_size"] * 2,
model_config["label_size"])
device = th.device("cuda" if th.cuda.is_available() else "cpu")
model.cuda()
assert os.path.isfile(
args.model_path), "ERROR: model file {} does not exit!".format(
args.model_path)
checkpoint = th.load(args.model_path, map_location='cuda:0')
state_dict = checkpoint['model']
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
header = k[:7]
name = k[7:] # remove 'module.' of dataparallel
new_state_dict[name] = v
if header == "module.":
model.load_state_dict(new_state_dict)
else:
model.load_state_dict(state_dict)
print("=> loaded checkpoint '{}' ".format(args.model_path))
HCLG = args.graph_dir + "/HCLG.fst"
words_txt = args.graph_dir + "/words.txt"
if not os.path.isfile(HCLG):
sys.stderr.write('ERROR: The HCLG file %s does not exist!\n' % (HCLG))
sys.exit(0)
if not os.path.isfile(words_txt):
sys.stderr.write('ERROR: The words.txt file %s does not exist!\n' %
(words_txt))
sys.exit(0)
if os.path.isfile(args.trans_model):
trans_model = kaldi_hmm.TransitionModel()
with kaldi_util.io.xopen(args.trans_model) as ki:
trans_model.read(ki.stream(), ki.binary)
else:
sys.stderr.write('ERROR: The trans_model %s does not exist!\n' %
(args.trans_model))
sys.exit(0)
prior = read_matrix(args.prior_path).numpy()
log_prior = th.tensor(np.log(prior[0] / np.sum(prior[0])), dtype=th.float)
# now we can setup the decoder
decoder_opts = LatticeFasterDecoderOptions()
decoder_opts.beam = config["decoder_config"]["beam"]
decoder_opts.lattice_beam = config["decoder_config"]["lattice_beam"]
decoder_opts.max_active = config["decoder_config"]["max_active"]
acoustic_scale = config["decoder_config"]["acoustic_scale"]
decoder_opts.determinize_lattice = True #To produce compact lattice
asr_decoder = MappedLatticeFasterRecognizer.from_files(
args.trans_model,
HCLG,
words_txt,
acoustic_scale=acoustic_scale,
decoder_opts=decoder_opts)
model.eval()
with th.no_grad():
with kaldi_util.table.CompactLatticeWriter("ark:" +
args.out_file) as lat_out:
for data in test_dataloader:
feat = data["x"]
num_frs = data["num_frs"]
utt_ids = data["utt_ids"]
x = feat.to(th.float32)
x = x.cuda()
prediction = model(x)
for j in range(len(num_frs)):
loglikes = prediction[j, :, :].data.cpu()
loglikes_j = loglikes[:num_frs[j], :]
loglikes_j = loglikes_j - log_prior
decoder_out = asr_decoder.decode(
kaldi_matrix.Matrix(loglikes_j.numpy()))
key = utt_ids[j][0]
print(key, decoder_out["text"])
print("Log-like per-frame for utterance {} is {}".format(
key, decoder_out["likelihood"] / num_frs[j]))
# save lattice
lat_out[key] = decoder_out["lattice"]
eos_token = char_to_token['<eos>']
# #test_dataset = SpeechDataset(test_df, dataset_dir)
# #test_loader = DataLoader(test_dataset, batch_size=32, shuffle=True, collate_fn=collate_fn)
model = load_model(args.load_dir, args.epoch, device=DEVICE)
num_sent = 10
model.eval()
model.tf_ratio = 0.9
for i in range(num_sent):
if args.first_ten:
idx = i
else:
idx = random.randint(0, train_df.shape[0])
trial_dataset = SpeechDataset(train_df, root_dir, char_to_token)
x, y = trial_dataset.__getitem__(idx)
# plt.imshow(x[0,:,:].detach())
# Model output
target = y.unsqueeze(dim=0).to(DEVICE)
data = x.permute(0, 2, 1).to(DEVICE)
loss, output = model(data, target)
print("True sent : ", decode_true_sent(y))
print("Pred sent : ", decode_pred_sent(output))
print("Loss :", loss.item())
print("\n")
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-config")
parser.add_argument("-data", help="data yaml file")
parser.add_argument("-dataPath",
default='',
type=str,
help="path of data files")
parser.add_argument("-seed_model",
default='',
help="the seed nerual network model")
parser.add_argument("-exp_dir", help="the directory to save the outputs")
parser.add_argument("-transform",
help="feature transformation matrix or mvn statistics")
parser.add_argument(
"-ali_dir",
help="the directory to load trans_model and tree used for alignments")
parser.add_argument("-lang_dir",
help="the lexicon directory to load L.fst")
parser.add_argument(
"-chain_dir",
help=
"the directory to load trans_model, tree and den.fst for chain model")
parser.add_argument("-lr", type=float, help="set the base learning rate")
parser.add_argument(
"-warmup_steps",
default=4000,
type=int,
help="the number of warmup steps to adjust the learning rate")
parser.add_argument("-xent_regularize",
default=0,
type=float,
help="cross-entropy regularization weight")
parser.add_argument("-momentum",
default=0,
type=float,
help="set the momentum")
parser.add_argument("-weight_decay",
default=1e-4,
type=float,
help="set the L2 regularization weight")
parser.add_argument("-batch_size",
default=32,
type=int,
help="Override the batch size in the config")
parser.add_argument("-data_loader_threads",
default=0,
type=int,
help="number of workers for data loading")
parser.add_argument("-max_grad_norm",
default=5,
type=float,
help="max_grad_norm for gradient clipping")
parser.add_argument("-sweep_size",
default=100,
type=float,
help="process n hours of data per sweep (default:100)")
parser.add_argument("-num_epochs",
default=1,
type=int,
help="number of training epochs (default:1)")
parser.add_argument(
"-anneal_lr_epoch",
default=2,
type=int,
help="start to anneal the learning rate from this epoch")
parser.add_argument("-anneal_lr_ratio",
default=0.5,
type=float,
help="the ratio to anneal the learning rate ratio")
parser.add_argument('-print_freq',
default=10,
type=int,
metavar='N',
help='print frequency (default: 10)')
parser.add_argument('-save_freq',
default=1000,
type=int,
metavar='N',
help='save model frequency (default: 1000)')
args = parser.parse_args()
with open(args.config) as f:
config = yaml.safe_load(f)
config["sweep_size"] = args.sweep_size
print("pytorch version:{}".format(th.__version__))
with open(args.data) as f:
data = yaml.safe_load(f)
config["source_paths"] = [j for i, j in data['clean_source'].items()]
if 'dir_noise' in data:
config["dir_noise_paths"] = [
j for i, j in data['dir_noise'].items()
]
if 'rir' in data:
config["rir_paths"] = [j for i, j in data['rir'].items()]
config['data_path'] = args.dataPath
print("Experiment starts with config {}".format(
json.dumps(config, sort_keys=True, indent=4)))
# Initialize Horovod
hvd.init()
th.cuda.set_device(hvd.local_rank())
print("Run experiments with world size {}".format(hvd.size()))
dataset = SpeechDataset(config)
transform = None
if args.transform is not None and os.path.isfile(args.transform):
with open(args.transform, 'rb') as f:
transform = pickle.load(f)
dataset.transform = transform
train_dataloader = SeqDataloader(dataset,
batch_size=args.batch_size,
num_workers=args.data_loader_threads,
distributed=True,
test_only=False)
print("Data loader set up successfully!")
print("Number of minibatches: {}".format(len(train_dataloader)))
if not os.path.isdir(args.exp_dir):
os.makedirs(args.exp_dir)
# ceate model
model_config = config["model_config"]
model = lstm.LSTMAM(model_config["feat_dim"], model_config["label_size"],
model_config["hidden_size"],
model_config["num_layers"], model_config["dropout"],
True)
model.cuda()
# setup the optimizer
optimizer = th.optim.Adam(model.parameters(), lr=args.lr, amsgrad=True)
# Broadcast parameters and opterimizer state from rank 0 to all other processes.
hvd.broadcast_parameters(model.state_dict(), root_rank=0)
hvd.broadcast_optimizer_state(optimizer, root_rank=0)
# Add Horovod Distributed Optimizer
optimizer = hvd.DistributedOptimizer(
optimizer, named_parameters=model.named_parameters())
if os.path.isfile(args.seed_model):
checkpoint = th.load(args.seed_model)
state_dict = checkpoint['model']
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
header = k[:7]
name = k[7:] # remove 'module.' of dataparallel
new_state_dict[name] = v
if header == "module.":
model.load_state_dict(new_state_dict)
else:
model.load_state_dict(state_dict)
print("=> loaded checkpoint '{}' ".format(args.seed_model))
ali_model = args.ali_dir + "/final.mdl"
ali_tree = args.ali_dir + "/tree"
L_fst = args.lang_dir + "/L.fst"
disambig = args.lang_dir + "/phones/disambig.int"
den_fst = kaldi_fst.StdVectorFst.read(args.chain_dir + "/den.fst")
chain_model_path = args.chain_dir + "/0.trans_mdl"
chain_tree_path = args.chain_dir + "/tree"
if os.path.isfile(chain_model_path):
chain_trans_model = kaldi_hmm.TransitionModel()
with kaldi_util.io.xopen(chain_model_path) as ki:
chain_trans_model.read(ki.stream(), ki.binary)
else:
sys.stderr.write('ERROR: The trans_model %s does not exist!\n' %
(trans_model))
sys.exit(0)
chain_tree = kaldi_tree.ContextDependency()
with kaldi_util.io.xopen(chain_tree_path) as ki:
chain_tree.read(ki.stream(), ki.binary)
# chain supervision options
supervision_opts = kaldi_chain.SupervisionOptions()
supervision_opts.convert_to_pdfs = True
supervision_opts.frame_subsampling_factor = 3
supervision_opts.left_tolerance = 5
supervision_opts.right_tolerance = 5
# chain training options
chain_opts = kaldi_chain.ChainTrainingOptions()
chain_opts.leaky_hmm_coefficient = 1e-4
chain_opts.xent_regularize = args.xent_regularize
# setup the aligner
aligner = kaldi_align.MappedAligner.from_files(ali_model,
ali_tree,
L_fst,
None,
disambig,
None,
beam=10,
transition_scale=1.0,
self_loop_scale=0.1,
acoustic_scale=0.1)
den_graph = kaldi_chain.DenominatorGraph(den_fst,
model_config["label_size"])
#encoder_layer = nn.TransformerEncoderLayer(512, 8)
#print(encoder_layer)
model.train()
for epoch in range(args.num_epochs):
# anneal learning rate
if epoch > args.anneal_lr_epoch:
for param_group in optimizer.param_groups:
param_group['lr'] *= args.anneal_lr_ratio
run_train_epoch(model, optimizer, train_dataloader, epoch,
chain_trans_model, chain_tree, supervision_opts,
aligner, den_graph, chain_opts, args)
# save model
if hvd.rank() == 0:
checkpoint = {}
checkpoint['model'] = model.state_dict()
checkpoint['optimizer'] = optimizer.state_dict()
checkpoint['epoch'] = epoch
output_file = args.exp_dir + '/chain.model.' + str(epoch) + '.tar'
th.save(checkpoint, output_file)
train_data_df = pd.read_csv(os.path.join(train_dir, 'train_data.csv'),
skiprows=[0],
header=None,
names=['index', 'clip', 'sentence'])
test_data_df = pd.read_csv(os.path.join(test_dir, 'test_data.csv'),
skiprows=[0],
header=None,
names=['index', 'clip', 'sentence'])
max_data_len = 2500
max_sent_len = 100
bs = int(input("Enter batch_size:"))
train_dataset = SpeechDataset(train_data_df, train_dir, max_data_len, max_sent_len)
train_loader = DataLoader(train_dataset, batch_size=bs, shuffle=True)
test_dataset = SpeechDataset(test_data_df, test_dir, max_data_len, max_sent_len)
test_loader = DataLoader(test_dataset, batch_size=bs)
device = torch.device("cuda") if torch.cuda.is_available() else 'cpu'
print('device:',device)
input_len = 201
hidden_size = 50
num_layers = 3
output_shape = 28
bidirectional = True
model = BasicASR(input_len, hidden_size, num_layers, output_shape, bidirectional).to(device)
args = get_args()
pkg = torch.load(args.model_file)
model_config = pkg['model_config']
vocab = load_vocab(args.vocab_file)
id2token = [None] * len(vocab)
for k, v in vocab.items():
id2token[v] = k
collate = Collate(model_config["left_context"],
model_config["right_context"],
model_config["skip_frame"], model_config["norm_mean"],
model_config["norm_var"])
testset = SpeechDataset(args.data_file)
test_loader = torch.utils.data.DataLoader(testset,
collate_fn=collate,
shuffle=False)
# check dim match
if model_config["feat_dim"] != testset[0]["feat"]["dim"]:
raise ValueError(("Dim mismatch: " + "model {} vs. feat {}.").format(
model_config["feat_dim"], testset[0]["feat"]["dim"]))
model_load_timer = Timer()
model_load_timer.tic()
# build encoder and decoder
if model_config["encoder"]["type"] == "BiRNN":
encoder = BiRNN(model_config["encoder"])
elif model_config["encoder"]["type"] == "BiRNN_Torch":
def train_model(model_class, preprocess_fun, is_1d, reshape_size, BATCH_SIZE, epochs, CODER, preprocess_param={}, bagging_num=1, semi_train_path=None, pretrained=None, pretraining=False, MGPU=False):
"""
:param model_class: model class. e.g. vgg, resnet, senet
:param preprocess_fun: preprocess function. e.g. mel, mfcc, raw wave
:param is_1d: boolean. True for conv1d models and false for conv2d
:param reshape_size: int. only for conv2d, reshape the image size
:param BATCH_SIZE: batch size.
:param epochs: number of epochs
:param CODER: string for saving and loading model/files
:param preprocess_param: parameters for preprocessing function
:param bagging_num: number of training per model, aka bagging models
:param semi_train_path: path to semi supervised learning file.
:param pretrained: path to pretrained model
:param pretraining: boolean. if this is pretraining
:param MGPU: whether using multiple gpus
"""
# 학습에 사용되는 모델을 정의하는 get_model() 함수이다
def get_model(model=model_class, m=MGPU, pretrained=pretrained):
# multi-GPU일 경우, Data Parallelism
mdl = torch.nn.DataParallel(model()) if m else model()
if not pretrained:
return mdl
else:
print("load pretrained model here...")
# 기학습된 torch.load()로 모델을 불러온다
mdl.load_state_dict(torch.load(pretrained))
if 'vgg' in pretrained:
# VGG 모델의 경우, 최상위층 파라미터 외 모든 파라미터를 학습이 안되도록 requires_grad=False로 지정한다.
fixed_layers = list(mdl.features)
for l in fixed_layers:
for p in l.parameters():
p.requires_grad = False
return mdl
label_to_int, int_to_label = get_label_dict()
# bagging_num 만큼 모델 학습을 반복 수행한다
for b in range(bagging_num):
print("training model # ", b)
# 학습에 사용되는 loss function을 정의한다
loss_fn = torch.nn.CrossEntropyLoss()
# 모델을 정의하고, .cuda()로 GPU, CUDA와 연동한다
speechmodel = get_model()
speechmodel = speechmodel.cuda()
# 학습 중간에 성능 표시를 위한 값을 준비한다
total_correct = 0
num_labels = 0
start_time = time()
# 지정된 epoch 만큼 학습을 수행한다.
for e in range(epochs):
print("training epoch ", e)
# 10 epoch 이후에는 learning_rate를 1/10로 줄인다
learning_rate = 0.01 if e < 10 else 0.001
# 학습에 사용할 SGD optimizer + momentum을 정의한다
optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad, speechmodel.parameters()), lr=learning_rate, momentum=0.9, weight_decay=0.00001)
# 모델 내부 모듈을 학습 직전에 활성화시킨다
speechmodel.train()
if semi_train_path:
# semi-supervised 학습일 경우에는 훈련 데이터를 불러오는 기준이 다르다. [ Semi-Supervised 모델 학습 ] 에서 자세하게 다룬다.
# 학습에 사용할 파일 목록 train_list에 테스트 데이터를 추가한다.
train_list, label_list = get_semi_list(words=label_to_int.keys(), sub_path=semi_train_path,
test_ratio=choice([0.2, 0.25, 0.3, 0.35]))
print("semi training list length: ", len(train_list))
else:
# Supervised 학습의 경우, 훈련 데이터 목록을 받아온다.
train_list, label_list, _ = get_wav_list(words=label_to_int.keys())
if pretraining:
traindataset = PreDataset(label_words_dict=label_to_int,
add_noise=True, preprocess_fun=preprocess_fun, preprocess_param=preprocess_param,
resize_shape=reshape_size, is_1d=is_1d)
else:
traindataset = SpeechDataset(mode='train', label_words_dict=label_to_int, wav_list=(train_list, label_list),
add_noise=True, preprocess_fun=preprocess_fun, preprocess_param=preprocess_param,
resize_shape=reshape_size, is_1d=is_1d)
# Dataloader를 통해 Data Queue를 생성한다. Shuffle=True 설정을 통하여 매 epoch마다 읽어오는 데이터를 랜덤하게 선정한다.
trainloader = DataLoader(traindataset, BATCH_SIZE, shuffle=True)
# trainloader를 통해 batch_size 만큼의 훈련 데이터를 읽어온다
for batch_idx, batch_data in enumerate(trainloader):
# spec은 스펙트로그램의 약자로 음성 데이터를 의미하고, label은 정답값을 의미한다
spec = batch_data['spec']
label = batch_data['label']
spec, label = Variable(spec.cuda()), Variable(label.cuda())
# 현재 모델(speechmodel)에 데이터(spec)을 입력하여, 예측 결과물(y_pred)을 얻는다
y_pred = speechmodel(spec)
# 예측 결과물과 정답값으로 현재 모델의 Loss값을 구한다
loss = loss_fn(y_pred, label)
optimizer.zero_grad()
# backpropagation을 수행하여, Loss 값을 개선하기 위해 모델 파라미터를 수정해야하는 방향을 얻는다.
loss.backward()
# optimizer.step() 함수를 통해 모델 파라미터를 업데이트한다. 이전보다 loss 값이 줄어들도록 하는 방향으로 모델 파라미터가 업데이트 되었다.
optimizer.step()
# 확률값인 y_pred에서 max값을 구하여 현재 모델의 정확률(correct)을 구한다
_, pred_labels = torch.max(y_pred.data, 1)
correct = (pred_labels == label.data).sum()
total_correct += correct
num_labels += len(label)
# 훈련 데이터에 대한 정확률을 중간마다 출력해준다.
print("training loss:", 100. * total_correct / num_labels, time()-start_time)
# 학습이 완료된 모델 파라미터를 저장한다
create_directory("model")
torch.save(speechmodel.state_dict(), "model/model_%s_%s.pth" % (CODER, b))
if not pretraining:
print("doing prediction...")
softmax = Softmax()
# 저장된 학습 모델 경로를 지정한다. Bagging_num 개수만큼의 모델을 읽어온다
trained_models = ["model/model_%s_%s.pth" % (CODER, b) for b in range(bagging_num)]
# 테스트 데이터에 대한 Dataset을 생성하고, DataLoader를 통해 Data Queue를 생성한다.
_, _, test_list = get_wav_list(words=label_to_int.keys())
testdataset = SpeechDataset(mode='test', label_words_dict=label_to_int, wav_list=(test_list, []),
add_noise=False, preprocess_fun=preprocess_fun, preprocess_param=preprocess_param,
resize_shape=reshape_size, is_1d=is_1d)
testloader = DataLoader(testdataset, BATCH_SIZE, shuffle=False)
for e, m in enumerate(trained_models):
print("predicting ", m)
speechmodel = get_model(m=MGPU)
# torch.load() 함수를 통해 학습이 완료된 모델을 읽어온다.
speechmodel.load_state_dict(torch.load(m))
# 모델을 cuda와 연동하고, evaluation 모드로 지정한다.
speechmodel = speechmodel.cuda()
speechmodel.eval()
test_fnames, test_labels = [], []
pred_scores = []
# 테스트 데이터를 batch_size 만큼 받아와 예측 결과물을 생성한다.
for batch_idx, batch_data in enumerate(testloader):
spec = Variable(batch_data['spec'].cuda())
fname = batch_data['id']
# y_pred는 테스트 데이터에 대한 모델의 예측값이다.
y_pred = softmax(speechmodel(spec))
pred_scores.append(y_pred.data.cpu().numpy())
test_fnames += fname
# bagging_num 개의 모델이 출력한 확률값 y_pred를 더하여 앙상블 예측값을 구한다.
if e == 0:
final_pred = np.vstack(pred_scores)
final_test_fnames = test_fnames
else:
final_pred += np.vstack(pred_scores)
assert final_test_fnames == test_fnames
# bagging_num 개수로 나누어, 최종 예측 확률값(final_pred)을 기반으로 최종 예측값(final_labels)를 생성한다.
final_pred /= len(trained_models)
final_labels = [int_to_label[x] for x in np.argmax(final_pred, 1)]
# 캐글 제출용 파일 생성을 위한 파일 이름(test_fnames)를 정의한다.
test_fnames = [x.split("/")[-1] for x in final_test_fnames]
labels = ['yes', 'no', 'up', 'down', 'left', 'right', 'on', 'off', 'stop', 'go', 'unknown', 'silence']
# 캐글 제출용 파일을 저장한다. (파일명과 최종 예측값이 기록된다)
create_directory("sub")
pd.DataFrame({'fname': test_fnames,
'label': final_labels}).to_csv("sub/%s.csv" % CODER, index=False)
# 서로 다른 모델의 앙상블, 학습 성능 향상을 목적으로 bagging 앙상블 모델의 예측 확률값을 별도 파일로 저장한다.
pred_scores = pd.DataFrame(np.vstack(final_pred), columns=labels)
pred_scores['fname'] = test_fnames
create_directory("pred_scores")
pred_scores.to_csv("pred_scores/%s.csv" % CODER, index=False)
def main():
args = parser.parse_args()
cf = ConfigParser.ConfigParser()
try:
cf.read(args.conf)
except:
print("conf file not exists")
sys.exit(1)
USE_CUDA = cf.getboolean('Training', 'use_cuda')
try:
seed = long(cf.get('Training', 'seed'))
except:
seed = torch.cuda.initial_seed()
cf.set('Training', 'seed', seed)
cf.write(open(args.conf, 'w'))
torch.manual_seed(seed)
if USE_CUDA:
torch.cuda.manual_seed(seed)
log_dir = cf.get('Data', 'log_dir')
log_file = os.path.join(log_dir, cf.get('Data', 'log_file'))
logger = init_logger(log_file)
# Define Model
rnn_input_size = cf.getint('Model', 'rnn_input_size')
rnn_hidden_size = cf.getint('Model', 'rnn_hidden_size')
rnn_layers = cf.getint('Model', 'rnn_layers')
rnn_type = RNN[cf.get('Model', 'rnn_type')]
bidirectional = cf.getboolean('Model', 'bidirectional')
batch_norm = cf.getboolean('Model', 'batch_norm')
rnn_param = {
"rnn_input_size": rnn_input_size,
"rnn_hidden_size": rnn_hidden_size,
"rnn_layers": rnn_layers,
"rnn_type": rnn_type,
"bidirectional": bidirectional,
"batch_norm": batch_norm
}
num_class = cf.getint('Model', 'num_class')
drop_out = cf.getfloat('Model', 'drop_out')
model = CTC_Model(rnn_param=rnn_param,
num_class=num_class,
drop_out=drop_out)
print("Model Structure:")
logger.info("Model Structure:")
for idx, m in enumerate(model.children()):
print(idx, m)
logger.info(str(idx) + "->" + str(m))
data_dir = cf.get('Data', 'data_dir')
batch_size = cf.getint("Training", 'batch_size')
# Data Loader
train_dataset = SpeechDataset(data_dir, data_set='train')
dev_dataset = SpeechDataset(data_dir, data_set="dev")
train_loader = SpeechDataLoader(train_dataset,
batch_size=batch_size,
shuffle=True,
num_workers=4,
pin_memory=False)
dev_loader = SpeechDataLoader(dev_dataset,
batch_size=batch_size,
shuffle=False,
num_workers=4,
pin_memory=False)
# ensure the feats is equal to the rnn_input_Size
assert train_dataset.n_feats == rnn_input_size
# decoder for dev set
decoder = GreedyDecoder(int2char,
space_idx=len(int2char) - 1,
blank_index=0)
# Training
init_lr = cf.getfloat('Training', 'init_lr')
num_epoches = cf.getint('Training', 'num_epoches')
end_adjust_acc = cf.getfloat('Training', 'end_adjust_acc')
decay = cf.getfloat("Training", 'lr_decay')
weight_decay = cf.getfloat("Training", 'weight_decay')
params = {
'num_epoches': num_epoches,
'end_adjust_acc': end_adjust_acc,
'seed': seed,
'decay': decay,
'learning_rate': init_lr,
'weight_decay': weight_decay,
'batch_size': batch_size,
'n_feats': train_dataset.n_feats
}
print(params)
if USE_CUDA:
model = model.cuda()
loss_fn = CTCLoss()
optimizer = torch.optim.Adam(model.parameters(),
lr=init_lr,
weight_decay=weight_decay)
# visualization for training
from visdom import Visdom
viz = Visdom()
title = 'TIMIT LSTM_CTC Acoustic Model'
opts = [
dict(title=title + " Loss", ylabel='Loss', xlabel='Epoch'),
dict(title=title + " Loss on Dev", ylabel='DEV Loss', xlabel='Epoch'),
dict(title=title + ' CER on DEV', ylabel='DEV CER', xlabel='Epoch')
]
viz_window = [None, None, None]
count = 0
learning_rate = init_lr
loss_best = 1000
loss_best_true = 1000
adjust_rate_flag = False
stop_train = False
adjust_time = 0
acc_best = 0
start_time = time.time()
loss_results = []
dev_loss_results = []
dev_cer_results = []
while not stop_train:
if count >= num_epoches:
break
count += 1
if adjust_rate_flag:
learning_rate *= decay
adjust_rate_flag = False
for param in optimizer.param_groups:
param['lr'] *= decay
print("Start training epoch: %d, learning_rate: %.5f" %
(count, learning_rate))
logger.info("Start training epoch: %d, learning_rate: %.5f" %
(count, learning_rate))
loss = train(model,
train_loader,
loss_fn,
optimizer,
logger,
print_every=20,
USE_CUDA=USE_CUDA)
loss_results.append(loss)
acc, dev_loss = dev(model,
dev_loader,
loss_fn,
decoder,
logger,
USE_CUDA=USE_CUDA)
print("loss on dev set is %.4f" % dev_loss)
logger.info("loss on dev set is %.4f" % dev_loss)
dev_loss_results.append(dev_loss)
dev_cer_results.append(acc)
# adjust learning rate by dev_loss
#adjust_rate_count : 表示连续超过count个epoch的loss在end_adjust_acc区间内认为稳定
if dev_loss < (loss_best - end_adjust_acc):
loss_best = dev_loss
loss_best_true = dev_loss
adjust_rate_count = 0
acc_best = acc
best_model_state = copy.deepcopy(model.state_dict())
best_op_state = copy.deepcopy(optimizer.state_dict())
elif (dev_loss < loss_best + end_adjust_acc):
adjust_rate_count += 1
if dev_loss < loss_best and dev_loss < loss_best_true:
loss_best_true = dev_loss
acc_best = acc
best_model_state = copy.deepcopy(model.state_dict())
best_op_state = copy.deepcopy(optimizer.state_dict())
else:
adjust_rate_count = 10
print("adjust_rate_count: %d" % adjust_rate_count)
print('adjust_time: %d' % adjust_time)
logger.info("adjust_rate_count: %d" % adjust_rate_count)
logger.info('adjust_time: %d' % adjust_time)
if adjust_rate_count == 10:
adjust_rate_flag = True
adjust_time += 1
adjust_rate_count = 0
if loss_best > loss_best_true:
loss_best = loss_best_true
model.load_state_dict(best_model_state)
optimizer.load_state_dict(best_op_state)
if adjust_time == 8:
stop_train = True
time_used = (time.time() - start_time) / 60
print("epoch %d done, dev acc is: %.4f, time_used: %.4f minutes" %
(count, acc, time_used))
logger.info(
"epoch %d done, dev acc is: %.4f, time_used: %.4f minutes" %
(count, acc, time_used))
x_axis = range(count)
y_axis = [
loss_results[0:count], dev_loss_results[0:count],
dev_cer_results[0:count]
]
for x in range(len(viz_window)):
if viz_window[x] is None:
viz_window[x] = viz.line(
X=np.array(x_axis),
Y=np.array(y_axis[x]),
opts=opts[x],
)
else:
viz.line(
X=np.array(x_axis),
Y=np.array(y_axis[x]),
win=viz_window[x],
update='replace',
)
print("End training, best dev loss is: %.4f, acc is: %.4f" %
(loss_best_true, acc_best))
logger.info("End training, best dev loss acc is: %.4f, acc is: %.4f" %
(loss_best_true, acc_best))
model.load_state_dict(best_model_state)
optimizer.load_state_dict(best_op_state)
best_path = os.path.join(log_dir,
'best_model' + '_dev' + str(acc_best) + '.pkl')
cf.set('Model', 'model_file', best_path)
cf.write(open(args.conf, 'w'))
params['epoch'] = count
torch.save(
CTC_Model.save_package(model,
optimizer=optimizer,
epoch=params,
loss_results=loss_results,
dev_loss_results=dev_loss_results,
dev_cer_results=dev_cer_results), best_path)
'yes', 'no', 'up', 'down', 'left', 'right', 'on', 'off', 'stop', 'go'
]
label_to_int = dict(zip(labels, range(len(labels))))
int_to_label = dict(zip(range(len(labels)), labels))
int_to_label.update({len(labels): 'unknown', len(labels) + 1: 'silence'})
# 모드에 따라 학습 및 검증에 사용할 파일을 선택한다
trn = 'input/trn.txt' if mode == 'cv' else 'input/trn_all.txt'
tst = 'input/val.txt' if mode == 'cv' else 'input/tst.txt'
trn = [line.strip() for line in open(trn, 'r').readlines()]
wav_list = [line.split(',')[-1] for line in trn]
label_list = [line.split(',')[0] for line in trn]
# 학습용 SpeechDataset을 불러온다
traindataset = SpeechDataset(mode='train',
label_to_int=label_to_int,
wav_list=wav_list,
label_list=label_list)
start_time = time()
for e in range(epochs):
print("training epoch ", e)
# learning_rate를 epoch마다 다르게 지정한다
learning_rate = 0.01 if e < 10 else 0.001
optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad,
speechmodel.parameters()),
lr=learning_rate,
momentum=0.9,
weight_decay=0.00001)
# 모델을 학습하기 위하여 .train() 함수를 실행한다
speechmodel.train()
if utils.TENSORBOARD_LOGGING == 1:
utils.visulizer.set_writer(
os.path.join(trainer_config["exp_dir"], 'log'))
collate = Collate(model_config["left_context"],
model_config["right_context"],
model_config["skip_frame"], model_config["norm_mean"],
model_config["norm_var"])
batch_frames = trainer_config["batch_frames"]
valid_batch_size = 20
if "multi_gpu" in trainer_config and trainer_config["multi_gpu"] == True:
batch_frames *= torch.cuda.device_count()
valid_batch_size *= torch.cuda.device_count()
trainset = SpeechDataset(os.path.join(args.data_dir, "train.json"))
validset = SpeechDataset(os.path.join(args.data_dir, "dev.json"))
logger.info("Loaded {} utterances for training.".format(len(trainset)))
logger.info("Loaded {} utterances for validation.".format(len(validset)))
trainsampler = FrameBasedSampler(trainset, frame_num=batch_frames)
tr_loader = torch.utils.data.DataLoader(trainset,
batch_sampler=trainsampler,
collate_fn=collate,
shuffle=False,
num_workers=16,
pin_memory=True)
cv_loader = torch.utils.data.DataLoader(validset,
collate_fn=collate,
batch_size=valid_batch_size,
num_workers=16,
lengths=output_lengths,
batch_first=True)
output_padded = nn.utils.rnn.pad_packed_sequence(output,
batch_first=True)
output, output_lengths = output_padded
output = output.index_select(0, idx_unsort.to(output.device))
output_lengths = output_lengths.index_select(
0, idx_unsort.to(output_lengths.device))
return output, output_lengths
if __name__ == "__main__":
from data import FrameBasedSampler, Collate, SpeechDataset
fn = "/home/baiye/Speech/las/egs/timit/data/test.json"
dataset = SpeechDataset(fn)
sampler = FrameBasedSampler(dataset)
collate = Collate(left=0, right=0)
dataloader = torch.utils.data.DataLoader(dataset,
batch_sampler=sampler,
collate_fn=collate,
shuffle=False)
dataiter = iter(dataloader)
feats, feat_lengths, targets, target_lengths = next(dataiter)
config = {
"input_dim": 40,
"hidden_size": 256,
"num_layers": 3,
}
rnn = PyramidBiRNN(config)
output, output_lengths = rnn(feats, feat_lengths)
def train_model(model_class,
preprocess_fun,
is_1d,
reshape_size,
BATCH_SIZE,
epochs,
CODER,
preprocess_param={},
bagging_num=1,
semi_train_path=None,
pretrained=None,
pretraining=False,
MGPU=False):
"""
:param model_class: model class. e.g. vgg, resnet, senet
:param preprocess_fun: preprocess function. e.g. mel, mfcc, raw wave
:param is_1d: boolean. True for conv1d models and false for conv2d
:param reshape_size: int. only for conv2d, reshape the image size
:param BATCH_SIZE: batch size.
:param epochs: number of epochs
:param CODER: string for saving and loading model/files
:param preprocess_param: parameters for preprocessing function
:param bagging_num: number of training per model, aka bagging models
:param semi_train_path: path to semi supervised learning file.
:param pretrained: path to pretrained model
:param pretraining: boolean. if this is pretraining
:param MGPU: whether using multiple gpus
"""
def get_model(model=model_class, m=MGPU, pretrained=pretrained):
mdl = torch.nn.DataParallel(model()) if m else model()
if not pretrained:
return mdl
else:
print("load pretrained model here...")
mdl.load_state_dict(torch.load(pretrained))
if 'vgg' in pretrained:
fixed_layers = list(mdl.features)
for l in fixed_layers:
for p in l.parameters():
p.requires_grad = False
return mdl
label_to_int, int_to_label = get_label_dict()
for b in range(bagging_num):
print("training model # ", b)
loss_fn = torch.nn.CrossEntropyLoss()
speechmodel = get_model()
speechmodel = speechmodel.cuda()
total_correct = 0
num_labels = 0
start_time = time()
for e in range(epochs):
print("training epoch ", e)
learning_rate = 0.01 if e < 10 else 0.001
optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad,
speechmodel.parameters()),
lr=learning_rate,
momentum=0.9,
weight_decay=0.00001)
speechmodel.train()
if semi_train_path:
train_list = get_semi_list(words=label_to_int.keys(),
sub_path=semi_train_path,
test_ratio=choice(
[0.2, 0.25, 0.3, 0.35]))
print("semi training list length: ", len(train_list))
else:
train_list, _ = get_wav_list(words=label_to_int.keys())
if pretraining:
traindataset = PreDataset(label_words_dict=label_to_int,
add_noise=True,
preprocess_fun=preprocess_fun,
preprocess_param=preprocess_param,
resize_shape=reshape_size,
is_1d=is_1d)
else:
traindataset = SpeechDataset(mode='train',
label_words_dict=label_to_int,
wav_list=train_list,
add_noise=True,
preprocess_fun=preprocess_fun,
preprocess_param=preprocess_param,
resize_shape=reshape_size,
is_1d=is_1d)
trainloader = DataLoader(traindataset, BATCH_SIZE, shuffle=True)
for batch_idx, batch_data in enumerate(trainloader):
spec = batch_data['spec']
label = batch_data['label']
spec, label = Variable(spec.cuda()), Variable(label.cuda())
y_pred = speechmodel(spec)
_, pred_labels = torch.max(y_pred.data, 1)
correct = (pred_labels == label.data).sum()
loss = loss_fn(y_pred, label)
total_correct += correct
num_labels += len(label)
optimizer.zero_grad()
loss.backward()
optimizer.step()
print("training loss:", 100. * total_correct / num_labels,
time() - start_time)
# save model
create_directory("model")
torch.save(speechmodel.state_dict(),
"model/model_%s_%s.pth" % (CODER, b))
if not pretraining:
print("doing prediction...")
softmax = Softmax()
trained_models = [
"model/model_%s_%s.pth" % (CODER, b) for b in range(bagging_num)
]
# prediction
_, test_list = get_wav_list(words=label_to_int.keys())
testdataset = SpeechDataset(mode='test',
label_words_dict=label_to_int,
wav_list=test_list,
add_noise=False,
preprocess_fun=preprocess_fun,
preprocess_param=preprocess_param,
resize_shape=reshape_size,
is_1d=is_1d)
testloader = DataLoader(testdataset, BATCH_SIZE, shuffle=False)
for e, m in enumerate(trained_models):
print("predicting ", m)
speechmodel = get_model(m=MGPU)
speechmodel.load_state_dict(torch.load(m))
speechmodel = speechmodel.cuda()
speechmodel.eval()
test_fnames, test_labels = [], []
pred_scores = []
# do prediction and make a submission file
for batch_idx, batch_data in enumerate(testloader):
spec = Variable(batch_data['spec'].cuda())
fname = batch_data['id']
y_pred = softmax(speechmodel(spec))
pred_scores.append(y_pred.data.cpu().numpy())
test_fnames += fname
if e == 0:
final_pred = np.vstack(pred_scores)
final_test_fnames = test_fnames
else:
final_pred += np.vstack(pred_scores)
assert final_test_fnames == test_fnames
final_pred /= len(trained_models)
final_labels = [int_to_label[x] for x in np.argmax(final_pred, 1)]
test_fnames = [x.split("/")[-1] for x in final_test_fnames]
labels = [
'yes', 'no', 'up', 'down', 'left', 'right', 'on', 'off', 'stop',
'go', 'unknown', 'silence'
]
pred_scores = pd.DataFrame(np.vstack(final_pred), columns=labels)
pred_scores['fname'] = test_fnames
create_directory("pred_scores")
pred_scores.to_csv("pred_scores/%s.csv" % CODER, index=False)
create_directory("sub")
pd.DataFrame({
'fname': test_fnames,
'label': final_labels
}).to_csv("sub/%s.csv" % CODER, index=False)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-config")
parser.add_argument("-data", help="data yaml file")
parser.add_argument("-data_path",
default='',
type=str,
help="path of data files")
parser.add_argument("-seed_model", help="the seed nerual network model")
parser.add_argument("-exp_dir", help="the directory to save the outputs")
parser.add_argument("-transform",
help="feature transformation matrix or mvn statistics")
parser.add_argument("-criterion",
type=str,
choices=["mmi", "mpfe", "smbr"],
help="set the sequence training crtierion")
parser.add_argument(
"-trans_model",
help="the HMM transistion model, used for lattice generation")
parser.add_argument(
"-prior_path",
help="the prior for decoder, usually named as final.occs in kaldi setup"
)
parser.add_argument(
"-den_dir",
help="the decoding graph directory to find HCLG and words.txt files")
parser.add_argument("-lr", type=float, help="set the learning rate")
parser.add_argument("-ce_ratio",
default=0.1,
type=float,
help="the ratio for ce regularization")
parser.add_argument("-momentum",
default=0,
type=float,
help="set the momentum")
parser.add_argument("-batch_size",
default=32,
type=int,
help="Override the batch size in the config")
parser.add_argument("-data_loader_threads",
default=0,
type=int,
help="number of workers for data loading")
parser.add_argument("-max_grad_norm",
default=5,
type=float,
help="max_grad_norm for gradient clipping")
parser.add_argument("-sweep_size",
default=100,
type=float,
help="process n hours of data per sweep (default:60)")
parser.add_argument("-num_epochs",
default=1,
type=int,
help="number of training epochs (default:1)")
parser.add_argument('-print_freq',
default=10,
type=int,
metavar='N',
help='print frequency (default: 10)')
parser.add_argument('-save_freq',
default=1000,
type=int,
metavar='N',
help='save model frequency (default: 1000)')
args = parser.parse_args()
with open(args.config) as f:
config = yaml.safe_load(f)
config['data_path'] = args.data_path
config["sweep_size"] = args.sweep_size
print("pytorch version:{}".format(th.__version__))
with open(args.data) as f:
data = yaml.safe_load(f)
config["source_paths"] = [j for i, j in data['clean_source'].items()]
print("Experiment starts with config {}".format(
json.dumps(config, sort_keys=True, indent=4)))
# Initialize Horovod
hvd.init()
th.cuda.set_device(hvd.local_rank())
print("Run experiments with world size {}".format(hvd.size()))
dataset = SpeechDataset(config)
transform = None
if args.transform is not None and os.path.isfile(args.transform):
with open(args.transform, 'rb') as f:
transform = pickle.load(f)
dataset.transform = transform
train_dataloader = SeqDataloader(dataset,
batch_size=args.batch_size,
num_workers=args.data_loader_threads,
distributed=True,
test_only=False)
print("Data loader set up successfully!")
print("Number of minibatches: {}".format(len(train_dataloader)))
if not os.path.isdir(args.exp_dir):
os.makedirs(args.exp_dir)
# ceate model
model_config = config["model_config"]
lstm = LSTMStack(model_config["feat_dim"], model_config["hidden_size"],
model_config["num_layers"], model_config["dropout"], True)
model = NnetAM(lstm, model_config["hidden_size"] * 2,
model_config["label_size"])
model.cuda()
# setup the optimizer
optimizer = th.optim.SGD(model.parameters(),
lr=args.lr,
momentum=args.momentum)
# Broadcast parameters and opterimizer state from rank 0 to all other processes.
hvd.broadcast_parameters(model.state_dict(), root_rank=0)
hvd.broadcast_optimizer_state(optimizer, root_rank=0)
# Add Horovod Distributed Optimizer
optimizer = hvd.DistributedOptimizer(
optimizer, named_parameters=model.named_parameters())
if os.path.isfile(args.seed_model):
checkpoint = th.load(args.seed_model)
state_dict = checkpoint['model']
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
name = k[7:] # remove 'module.' of dataparallel
new_state_dict[name] = v
model.load_state_dict(new_state_dict)
print("=> loaded checkpoint '{}' ".format(args.seed_model))
else:
sys.stderr.write('ERROR: The model file %s does not exist!\n' %
(model_file))
sys.exit(0)
HCLG = args.den_dir + "/HCLG.fst"
words_txt = args.den_dir + "/words.txt"
silence_phones = args.den_dir + "/phones/silence.csl"
if not os.path.isfile(HCLG):
sys.stderr.write('ERROR: The HCLG file %s does not exist!\n' % (HCLG))
sys.exit(0)
if not os.path.isfile(words_txt):
sys.stderr.write('ERROR: The words.txt file %s does not exist!\n' %
(words_txt))
sys.exit(0)
if not os.path.isfile(silence_phones):
sys.stderr.write('ERROR: The silence phone file %s does not exist!\n' %
(silence_phones))
sys.exit(0)
with open(silence_phones) as f:
silence_ids = [int(i) for i in f.readline().strip().split(':')]
f.close()
if os.path.isfile(args.trans_model):
trans_model = kaldi_hmm.TransitionModel()
with kaldi_util.io.xopen(args.trans_model) as ki:
trans_model.read(ki.stream(), ki.binary)
else:
sys.stderr.write('ERROR: The trans_model %s does not exist!\n' %
(args.trans_model))
sys.exit(0)
# now we can setup the decoder
decoder_opts = LatticeFasterDecoderOptions()
decoder_opts.beam = config["decoder_config"]["beam"]
decoder_opts.lattice_beam = config["decoder_config"]["lattice_beam"]
decoder_opts.max_active = config["decoder_config"]["max_active"]
acoustic_scale = config["decoder_config"]["acoustic_scale"]
decoder_opts.determinize_lattice = False #To produce raw state-level lattice instead of compact lattice
asr_decoder = MappedLatticeFasterRecognizer.from_files(
args.trans_model,
HCLG,
words_txt,
acoustic_scale=acoustic_scale,
decoder_opts=decoder_opts)
prior = kaldi_util.io.read_matrix(args.prior_path).numpy()
log_prior = th.tensor(np.log(prior[0] / np.sum(prior[0])), dtype=th.float)
model.train()
for epoch in range(args.num_epochs):
run_train_epoch(model, optimizer, log_prior.cuda(), train_dataloader,
epoch, asr_decoder, trans_model, silence_ids, args)
# save model
if hvd.rank() == 0:
checkpoint = {}
checkpoint['model'] = model.state_dict()
checkpoint['optimizer'] = optimizer.state_dict()
checkpoint['epoch'] = epoch
output_file = args.exp_dir + '/model.se.' + str(epoch) + '.tar'
th.save(checkpoint, output_file)
train_df = pd.read_csv(os.path.join(dataset_dir, 'train_df.csv'),
names=['path', 'sent'])
train_df = train_df.dropna(how='any')
print(train_df.head())
# test_df = pd.read_csv('test_df.csv', names=['id', 'sent'])
save_file = os.path.join('save', 'chars')
chars = get_chars('chinese', save_file, train_df)
char_to_token = {c: i for i, c in enumerate(chars)}
token_to_char = {i: c for c, i in char_to_token.items()}
sos_token = char_to_token['<sos>']
eos_token = char_to_token['<eos>']
pad_token = char_to_token['<pad>']
train_dataset = SpeechDataset(train_df, dataset_dir, char_to_token)
train_loader = AudioDataLoader(pad_token,
train_dataset,
batch_size=32,
shuffle=True,
drop_last=True)
# #test_dataset = SpeechDataset(test_df, dataset_dir)
# #test_loader = DataLoader(test_dataset, batch_size=32, shuffle=True, collate_fn=collate_fn)
input_size = 128 # num rows in instagram
hidden_dim = 64 # 256*2 nodes in each LSTM
num_layers = 3
dropout = 0.1
layer_norm = False
encoder = Listener(input_size,
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-exp_dir")
parser.add_argument("-dataPath",
default='',
type=str,
help="path of data files")
parser.add_argument("-train_config")
parser.add_argument("-data_config")
parser.add_argument("-lr",
default=0.0001,
type=float,
help="Override the LR in the config")
parser.add_argument("-batch_size",
default=32,
type=int,
help="Override the batch size in the config")
parser.add_argument("-data_loader_threads",
default=0,
type=int,
help="number of workers for data loading")
parser.add_argument("-max_grad_norm",
default=5,
type=float,
help="max_grad_norm for gradient clipping")
parser.add_argument("-sweep_size",
default=200,
type=float,
help="process n hours of data per sweep (default:200)")
parser.add_argument("-num_epochs",
default=1,
type=int,
help="number of training epochs (default:1)")
parser.add_argument("-global_mvn",
default=False,
type=bool,
help="if apply global mean and variance normalization")
parser.add_argument(
"-resume_from_model",
type=str,
help="the model from which you want to resume training")
parser.add_argument("-dropout", type=float, help="set the dropout ratio")
parser.add_argument("-aneal_lr_epoch",
default=2,
type=int,
help="start to aneal the learning rate from this epoch"
) # aneal -> anneal?
parser.add_argument("-aneal_lr_ratio",
default=0.5,
type=float,
help="the ratio to aneal the learning rate")
parser.add_argument('-p',
'--print-freq',
default=100,
type=int,
metavar='N',
help='print frequency (default: 100)')
parser.add_argument('-hvd',
default=False,
type=bool,
help="whether to use horovod for training")
args = parser.parse_args()
with open(args.train_config) as f:
config = yaml.safe_load(f)
config["sweep_size"] = args.sweep_size
with open(args.data_config) as f:
data = yaml.safe_load(f)
config["source_paths"] = [j for i, j in data['clean_source'].items()]
if 'dir_noise' in data:
config["dir_noise_paths"] = [
j for i, j in data['dir_noise'].items()
]
if 'rir' in data:
config["rir_paths"] = [j for i, j in data['rir'].items()]
config['data_path'] = args.dataPath
print("Experiment starts with config {}".format(
json.dumps(config, sort_keys=True, indent=4)))
# Initialize Horovod
if args.hvd:
import horovod.torch as hvd
hvd.init()
th.cuda.set_device(hvd.local_rank())
print("Run experiments with world size {}".format(hvd.size()))
if not os.path.isdir(args.exp_dir):
os.makedirs(args.exp_dir)
trainset = SpeechDataset(config)
train_dataloader = ChunkDataloader(trainset,
batch_size=args.batch_size,
distributed=args.multi_gpu,
num_workers=args.data_loader_threads)
if args.global_mvn:
transform = GlobalMeanVarianceNormalization()
print("Estimating global mean and variance of feature vectors...")
transform.learn_mean_and_variance_from_train_loader(
trainset, trainset.stream_idx_for_transform, n_sample_to_use=2000)
trainset.transform = transform
print("Global mean and variance transform trained successfully!")
with open(args.exp_dir + "/transform.pkl", 'wb') as f:
pickle.dump(transform, f, pickle.HIGHEST_PROTOCOL)
print("Data loader set up successfully!")
print("Number of minibatches: {}".format(len(train_dataloader)))
# ceate model
model_config = config["model_config"]
lstm = LSTMStack(model_config["feat_dim"], model_config["hidden_size"],
model_config["num_layers"], model_config["dropout"], True)
model = NnetAM(lstm, model_config["hidden_size"] * 2,
model_config["label_size"])
# Start training
th.backends.cudnn.enabled = True
if th.cuda.is_available():
model.cuda()
# optimizer
optimizer = th.optim.Adam(model.parameters(), lr=args.lr, amsgrad=True)
if args.hvd:
# Broadcast parameters and opterimizer state from rank 0 to all other processes.
hvd.broadcast_parameters(model.state_dict(), root_rank=0)
hvd.broadcast_optimizer_state(optimizer, root_rank=0)
# Add Horovod Distributed Optimizer
optimizer = hvd.DistributedOptimizer(
optimizer, named_parameters=model.named_parameters())
# criterion
criterion = nn.CrossEntropyLoss(ignore_index=-100)
start_epoch = 0
if args.resume_from_model:
assert os.path.isfile(args.resume_from_model
), "ERROR: model file {} does not exit!".format(
args.resume_from_model)
checkpoint = th.load(args.resume_from_model)
state_dict = checkpoint['model']
start_epoch = checkpoint['epoch']
model.load_state_dict(state_dict)
optimizer.load_state_dict(checkpoint['optimizer'])
print("=> loaded checkpoint '{}' ".format(args.resume_from_model))
model.train()
for epoch in range(start_epoch, args.num_epochs):
# aneal learning rate
if epoch > args.aneal_lr_epoch:
for param_group in optimizer.param_groups:
param_group['lr'] *= args.aneal_lr_ratio
run_train_epoch(model, optimizer, criterion, train_dataloader, epoch,
args)
# save model
if not args.hvd or hvd.rank() == 0:
checkpoint = {}
checkpoint['model'] = model.state_dict()
checkpoint['optimizer'] = optimizer.state_dict()
checkpoint['epoch'] = epoch
output_file = args.exp_dir + '/model.' + str(epoch) + '.tar'
th.save(checkpoint, output_file)
def test():
args = parser.parse_args()
cf = ConfigParser.ConfigParser()
cf.read(args.conf)
USE_CUDA = cf.getboolean('Training', 'USE_CUDA')
model_path = cf.get('Model', 'model_file')
data_dir = cf.get('Data', 'data_dir')
beam_width = cf.getint('Decode', 'beam_width')
package = torch.load(model_path)
rnn_param = package["rnn_param"]
num_class = package["num_class"]
n_feats = package['epoch']['n_feats']
drop_out = package['_drop_out']
decoder_type = cf.get('Decode', 'decoder_type')
data_set = cf.get('Decode', 'eval_dataset')
test_dataset = SpeechDataset(data_dir, data_set=data_set)
model = CTC_Model(rnn_param=rnn_param, num_class=num_class, drop_out=drop_out)
test_loader = SpeechDataLoader(test_dataset, batch_size=8, shuffle=False, num_workers=4, pin_memory=False)
model.load_state_dict(package['state_dict'])
model.eval()
if USE_CUDA:
model = model.cuda()
if decoder_type == 'Greedy':
decoder = GreedyDecoder(int2char, space_idx=len(int2char) - 1, blank_index = 0)
else:
decoder = BeamDecoder(int2char, beam_width=beam_width, blank_index = 0, space_idx = len(int2char) - 1)
total_wer = 0
total_cer = 0
start = time.time()
for data in test_loader:
inputs, target, input_sizes, input_size_list, target_sizes = data
inputs = inputs.transpose(0,1)
inputs = Variable(inputs, volatile=True, requires_grad=False)
if USE_CUDA:
inputs = inputs.cuda()
inputs = nn.utils.rnn.pack_padded_sequence(inputs, input_size_list)
probs = model(inputs)
probs = probs.data.cpu()
decoded = decoder.decode(probs, input_size_list)
targets = decoder._unflatten_targets(target, target_sizes)
labels = decoder._process_strings(decoder._convert_to_strings(targets))
for x in range(len(labels)):
print("origin : " + labels[x])
print("decoded: " + decoded[x])
cer = 0
wer = 0
for x in range(len(labels)):
cer += decoder.cer(decoded[x], labels[x])
wer += decoder.wer(decoded[x], labels[x])
decoder.num_word += len(labels[x].split())
decoder.num_char += len(labels[x])
total_cer += cer
total_wer += wer
CER = (1 - float(total_cer) / decoder.num_char)*100
WER = (1 - float(total_wer) / decoder.num_word)*100
print("Character error rate on test set: %.4f" % CER)
print("Word error rate on test set: %.4f" % WER)
end = time.time()
time_used = (end - start) / 60.0
print("time used for decode %d sentences: %.4f minutes." % (len(test_dataset), time_used))
