def __init__(self, config):
super(TransformerTransducer, self).__init__()
self.vocab_size = config.joint.vocab_size
self.sos = self.vocab_size - 1
self.eos = self.vocab_size - 1
self.ignore_id = -1
self.encoder_left_mask = config.mask.encoder_left_mask
self.encoder_right_mask = config.mask.encoder_right_mask
self.decoder_left_mask = config.mask.decoder_left_mask
self.encoder = TransformerEncoder(**config.enc)
self.decoder = TransformerEncoder(**config.dec)
self.joint = JointNetwork(**config.joint)
self.loss = TransLoss(trans_type="warp-transducer",
blank_id=0) # todo: check blank id
def __init__(self, idim, odim, args, ignore_id=-1, blank_id=0):
"""Construct an E2E object for transducer model.
Args:
idim (int): dimension of inputs
odim (int): dimension of outputs
args (Namespace): argument Namespace containing options
"""
torch.nn.Module.__init__(self)
if args.etype == 'transformer':
self.encoder = Encoder(idim=idim,
attention_dim=args.adim,
attention_heads=args.aheads,
linear_units=args.eunits,
num_blocks=args.elayers,
input_layer=args.transformer_input_layer,
dropout_rate=args.dropout_rate,
positional_dropout_rate=args.dropout_rate,
attention_dropout_rate=args.
transformer_attn_dropout_rate_encoder)
self.subsample = [1]
else:
self.subsample = get_subsample(args, mode='asr', arch='rnn-t')
self.encoder = encoder_for(args, idim, self.subsample)
if args.dtype == 'transformer':
self.decoder = Decoder(
odim=odim,
jdim=args.joint_dim,
attention_dim=args.adim,
attention_heads=args.aheads,
linear_units=args.dunits,
num_blocks=args.dlayers,
input_layer=args.transformer_dec_input_layer,
dropout_rate=args.dropout_rate_decoder,
positional_dropout_rate=args.dropout_rate_decoder,
attention_dropout_rate=args.
transformer_attn_dropout_rate_decoder)
else:
if args.etype == 'transformer':
args.eprojs = args.adim
if args.rnnt_mode == 'rnnt-att':
self.att = att_for(args)
self.decoder = decoder_for(args, odim, self.att)
else:
self.decoder = decoder_for(args, odim)
self.etype = args.etype
self.dtype = args.dtype
self.rnnt_mode = args.rnnt_mode
self.sos = odim - 1
self.eos = odim - 1
self.blank_id = blank_id
self.ignore_id = ignore_id
self.space = args.sym_space
self.blank = args.sym_blank
self.odim = odim
self.adim = args.adim
self.reporter = Reporter()
self.criterion = TransLoss(args.trans_type, self.blank_id)
self.default_parameters(args)
if args.report_cer or args.report_wer:
from espnet.nets.e2e_asr_common import ErrorCalculatorTrans
self.error_calculator = ErrorCalculatorTrans(self.decoder, args)
else:
self.error_calculator = None
self.logzero = -10000000000.0
self.loss = None
self.rnnlm = None
def __init__(self,
idim,
odim,
args,
ignore_id=-1,
blank_id=0,
training=True):
"""Construct an E2E object for transducer model."""
torch.nn.Module.__init__(self)
if "transformer" in args.etype:
if args.enc_block_arch is None:
raise ValueError(
"Transformer-based blocks in transducer mode should be"
"defined individually in the YAML file."
"See egs/vivos/asr1/conf/transducer/* for more info.")
self.subsample = get_subsample(args,
mode="asr",
arch="transformer")
self.encoder = Encoder(
idim,
args.enc_block_arch,
input_layer=args.transformer_enc_input_layer,
repeat_block=args.enc_block_repeat,
self_attn_type=args.transformer_enc_self_attn_type,
positional_encoding_type=args.
transformer_enc_positional_encoding_type,
positionwise_activation_type=args.
transformer_enc_pw_activation_type,
conv_mod_activation_type=args.
transformer_enc_conv_mod_activation_type,
)
encoder_out = self.encoder.enc_out
args.eprojs = self.encoder.enc_out
self.most_dom_list = args.enc_block_arch[:]
else:
self.subsample = get_subsample(args, mode="asr", arch="rnn-t")
self.enc = encoder_for(args, idim, self.subsample)
encoder_out = args.eprojs
if "transformer" in args.dtype:
if args.dec_block_arch is None:
raise ValueError(
"Transformer-based blocks in transducer mode should be"
"defined individually in the YAML file."
"See egs/vivos/asr1/conf/transducer/* for more info.")
self.decoder = DecoderTT(
odim,
encoder_out,
args.joint_dim,
args.dec_block_arch,
input_layer=args.transformer_dec_input_layer,
repeat_block=args.dec_block_repeat,
joint_activation_type=args.joint_activation_type,
positionwise_activation_type=args.
transformer_dec_pw_activation_type,
dropout_rate_embed=args.dropout_rate_embed_decoder,
)
if "transformer" in args.etype:
self.most_dom_list += args.dec_block_arch[:]
else:
self.most_dom_list = args.dec_block_arch[:]
else:
if args.rnnt_mode == "rnnt-att":
self.att = att_for(args)
self.dec = DecoderRNNTAtt(
args.eprojs,
odim,
args.dtype,
args.dlayers,
args.dunits,
blank_id,
self.att,
args.dec_embed_dim,
args.joint_dim,
args.joint_activation_type,
args.dropout_rate_decoder,
args.dropout_rate_embed_decoder,
)
else:
self.dec = DecoderRNNT(
args.eprojs,
odim,
args.dtype,
args.dlayers,
args.dunits,
blank_id,
args.dec_embed_dim,
args.joint_dim,
args.joint_activation_type,
args.dropout_rate_decoder,
args.dropout_rate_embed_decoder,
)
if hasattr(self, "most_dom_list"):
self.most_dom_dim = sorted(
Counter(d["d_hidden"] for d in self.most_dom_list
if "d_hidden" in d).most_common(),
key=lambda x: x[0],
reverse=True,
)[0][0]
self.etype = args.etype
self.dtype = args.dtype
self.rnnt_mode = args.rnnt_mode
self.sos = odim - 1
self.eos = odim - 1
self.blank_id = blank_id
self.ignore_id = ignore_id
self.space = args.sym_space
self.blank = args.sym_blank
self.odim = odim
self.reporter = Reporter()
if training:
self.criterion = TransLoss(args.trans_type, self.blank_id)
self.default_parameters(args)
if args.report_cer or args.report_wer:
from espnet.nets.e2e_asr_common import ErrorCalculatorTransducer
if self.dtype == "transformer":
decoder = self.decoder
else:
decoder = self.dec
self.error_calculator = ErrorCalculatorTransducer(
decoder,
args.char_list,
args.sym_space,
args.sym_blank,
args.report_cer,
args.report_wer,
)
else:
self.error_calculator = None
self.loss = None
self.rnnlm = None
def __init__(self,
idim,
odim,
args,
ignore_id=-1,
blank_id=0,
training=True):
"""Construct an E2E object for transducer model."""
torch.nn.Module.__init__(self)
args = fill_missing_args(args, self.add_arguments)
self.is_rnnt = True
self.transducer_weight = args.transducer_weight
self.use_aux_task = (True if (args.aux_task_type is not None
and training) else False)
self.use_aux_ctc = args.aux_ctc and training
self.aux_ctc_weight = args.aux_ctc_weight
self.use_aux_cross_entropy = args.aux_cross_entropy and training
self.aux_cross_entropy_weight = args.aux_cross_entropy_weight
if self.use_aux_task:
n_layers = ((len(args.enc_block_arch) * args.enc_block_repeat -
1) if args.enc_block_arch is not None else
(args.elayers - 1))
aux_task_layer_list = valid_aux_task_layer_list(
args.aux_task_layer_list,
n_layers,
)
else:
aux_task_layer_list = []
if "custom" in args.etype:
if args.enc_block_arch is None:
raise ValueError(
"When specifying custom encoder type, --enc-block-arch"
"should also be specified in training config. See"
"egs/vivos/asr1/conf/transducer/train_*.yaml for more info."
)
self.subsample = get_subsample(args,
mode="asr",
arch="transformer")
self.encoder = CustomEncoder(
idim,
args.enc_block_arch,
input_layer=args.custom_enc_input_layer,
repeat_block=args.enc_block_repeat,
self_attn_type=args.custom_enc_self_attn_type,
positional_encoding_type=args.
custom_enc_positional_encoding_type,
positionwise_activation_type=args.
custom_enc_pw_activation_type,
conv_mod_activation_type=args.
custom_enc_conv_mod_activation_type,
aux_task_layer_list=aux_task_layer_list,
)
encoder_out = self.encoder.enc_out
self.most_dom_list = args.enc_block_arch[:]
else:
self.subsample = get_subsample(args, mode="asr", arch="rnn-t")
self.enc = encoder_for(
args,
idim,
self.subsample,
aux_task_layer_list=aux_task_layer_list,
)
encoder_out = args.eprojs
if "custom" in args.dtype:
if args.dec_block_arch is None:
raise ValueError(
"When specifying custom decoder type, --dec-block-arch"
"should also be specified in training config. See"
"egs/vivos/asr1/conf/transducer/train_*.yaml for more info."
)
self.decoder = CustomDecoder(
odim,
args.dec_block_arch,
input_layer=args.custom_dec_input_layer,
repeat_block=args.dec_block_repeat,
positionwise_activation_type=args.
custom_dec_pw_activation_type,
dropout_rate_embed=args.dropout_rate_embed_decoder,
)
decoder_out = self.decoder.dunits
if "custom" in args.etype:
self.most_dom_list += args.dec_block_arch[:]
else:
self.most_dom_list = args.dec_block_arch[:]
else:
self.dec = DecoderRNNT(
odim,
args.dtype,
args.dlayers,
args.dunits,
blank_id,
args.dec_embed_dim,
args.dropout_rate_decoder,
args.dropout_rate_embed_decoder,
)
decoder_out = args.dunits
self.joint_network = JointNetwork(odim, encoder_out, decoder_out,
args.joint_dim,
args.joint_activation_type)
if hasattr(self, "most_dom_list"):
self.most_dom_dim = sorted(
Counter(d["d_hidden"] for d in self.most_dom_list
if "d_hidden" in d).most_common(),
key=lambda x: x[0],
reverse=True,
)[0][0]
self.etype = args.etype
self.dtype = args.dtype
self.sos = odim - 1
self.eos = odim - 1
self.blank_id = blank_id
self.ignore_id = ignore_id
self.space = args.sym_space
self.blank = args.sym_blank
self.odim = odim
self.reporter = Reporter()
self.error_calculator = None
self.default_parameters(args)
if training:
self.criterion = TransLoss(args.trans_type, self.blank_id)
decoder = self.decoder if self.dtype == "custom" else self.dec
if args.report_cer or args.report_wer:
self.error_calculator = ErrorCalculator(
decoder,
self.joint_network,
args.char_list,
args.sym_space,
args.sym_blank,
args.report_cer,
args.report_wer,
)
if self.use_aux_task:
self.auxiliary_task = AuxiliaryTask(
decoder,
self.joint_network,
self.criterion,
args.aux_task_type,
args.aux_task_weight,
encoder_out,
args.joint_dim,
)
if self.use_aux_ctc:
self.aux_ctc = ctc_for(
Namespace(
num_encs=1,
eprojs=encoder_out,
dropout_rate=args.aux_ctc_dropout_rate,
ctc_type="warpctc",
),
odim,
)
if self.use_aux_cross_entropy:
self.aux_decoder_output = torch.nn.Linear(decoder_out, odim)
self.aux_cross_entropy = LabelSmoothingLoss(
odim, ignore_id, args.aux_cross_entropy_smoothing)
self.loss = None
self.rnnlm = None
def __init__(self, idim, odim, args, ignore_id=-1, blank_id=0):
"""Construct an E2E object for transducer model."""
torch.nn.Module.__init__(self)
if "transformer" in args.etype:
if args.enc_block_arch is None:
raise ValueError(
"Transformer-based blocks in transducer mode should be"
"defined individually in the YAML file."
"See egs/vivos/asr1/conf/transducer/* for more info.")
self.subsample = get_subsample(args,
mode="asr",
arch="transformer")
# 2. use transformer to joint feature maps
# transformer without positional encoding
self.clayers = repeat(
2,
lambda lnum: EncoderLayer(
16,
MultiHeadedAttention(4, 16, 0.1),
PositionwiseFeedForward(16, 2048, 0.1),
dropout_rate=0.1,
normalize_before=True,
concat_after=False,
),
)
self.conv = torch.nn.Sequential(
torch.nn.Conv2d(1, 32, kernel_size=(3, 5), stride=(1, 2)),
torch.nn.ReLU(),
torch.nn.Conv2d(32, 32, kernel_size=(3, 7), stride=(2, 2)),
torch.nn.ReLU())
self.encoder = Encoder(
idim,
args.enc_block_arch,
input_layer=args.transformer_enc_input_layer,
repeat_block=args.enc_block_repeat,
self_attn_type=args.transformer_enc_self_attn_type,
positional_encoding_type=args.
transformer_enc_positional_encoding_type,
positionwise_activation_type=args.
transformer_enc_pw_activation_type,
conv_mod_activation_type=args.
transformer_enc_conv_mod_activation_type,
)
encoder_out = self.encoder.enc_out
args.eprojs = self.encoder.enc_out
self.most_dom_list = args.enc_block_arch[:]
else:
self.subsample = get_subsample(args, mode="asr", arch="rnn-t")
self.enc = encoder_for(args, idim, self.subsample)
encoder_out = args.eprojs
if "transformer" in args.dtype:
if args.dec_block_arch is None:
raise ValueError(
"Transformer-based blocks in transducer mode should be"
"defined individually in the YAML file."
"See egs/vivos/asr1/conf/transducer/* for more info.")
self.decoder = DecoderTT(
odim,
encoder_out,
args.joint_dim,
args.dec_block_arch,
input_layer=args.transformer_dec_input_layer,
repeat_block=args.dec_block_repeat,
joint_activation_type=args.joint_activation_type,
positionwise_activation_type=args.
transformer_dec_pw_activation_type,
dropout_rate_embed=args.dropout_rate_embed_decoder,
)
if "transformer" in args.etype:
self.most_dom_list += args.dec_block_arch[:]
else:
self.most_dom_list = args.dec_block_arch[:]
else:
if args.rnnt_mode == "rnnt-att":
self.att = att_for(args)
self.dec = DecoderRNNTAtt(
args.eprojs,
odim,
args.dtype,
args.dlayers,
args.dunits,
blank_id,
self.att,
args.dec_embed_dim,
args.joint_dim,
args.joint_activation_type,
args.dropout_rate_decoder,
args.dropout_rate_embed_decoder,
)
else:
self.dec = DecoderRNNT(
args.eprojs,
odim,
args.dtype,
args.dlayers,
args.dunits,
blank_id,
args.dec_embed_dim,
args.joint_dim,
args.joint_activation_type,
args.dropout_rate_decoder,
args.dropout_rate_embed_decoder,
)
if hasattr(self, "most_dom_list"):
self.most_dom_dim = sorted(
Counter(d["d_hidden"] for d in self.most_dom_list
if "d_hidden" in d).most_common(),
key=lambda x: x[0],
reverse=True,
)[0][0]
self.etype = args.etype
self.dtype = args.dtype
self.rnnt_mode = args.rnnt_mode
self.sos = odim - 1
self.eos = odim - 1
self.blank_id = blank_id
self.ignore_id = ignore_id
self.space = args.sym_space
self.blank = args.sym_blank
self.odim = odim
self.reporter = Reporter()
self.criterion = TransLoss(args.trans_type, self.blank_id)
self.default_parameters(args)
if args.report_cer or args.report_wer:
from espnet.nets.e2e_asr_common import ErrorCalculatorTransducer
if self.dtype == "transformer":
decoder = self.decoder
else:
decoder = self.dec
self.error_calculator = ErrorCalculatorTransducer(
decoder,
args.char_list,
args.sym_space,
args.sym_blank,
args.report_cer,
args.report_wer,
)
else:
self.error_calculator = None
self.loss = None
self.rnnlm = None
def __init__(self,
idim,
odim,
args,
ignore_id=-1,
blank_id=0,
training=True):
"""Construct an E2E object for transducer model."""
torch.nn.Module.__init__(self)
self.is_rnnt = True
if "custom" in args.etype:
if args.enc_block_arch is None:
raise ValueError(
"When specifying custom encoder type, --enc-block-arch"
"should also be specified in training config. See"
"egs/vivos/asr1/conf/transducer/train_*.yaml for more info."
)
self.subsample = get_subsample(args,
mode="asr",
arch="transformer")
self.encoder = CustomEncoder(
idim,
args.enc_block_arch,
input_layer=args.custom_enc_input_layer,
repeat_block=args.enc_block_repeat,
self_attn_type=args.custom_enc_self_attn_type,
positional_encoding_type=args.
custom_enc_positional_encoding_type,
positionwise_activation_type=args.
custom_enc_pw_activation_type,
conv_mod_activation_type=args.
custom_enc_conv_mod_activation_type,
)
encoder_out = self.encoder.enc_out
self.most_dom_list = args.enc_block_arch[:]
else:
self.subsample = get_subsample(args, mode="asr", arch="rnn-t")
self.enc = encoder_for(args, idim, self.subsample)
encoder_out = args.eprojs
if "custom" in args.dtype:
if args.dec_block_arch is None:
raise ValueError(
"When specifying custom decoder type, --dec-block-arch"
"should also be specified in training config. See"
"egs/vivos/asr1/conf/transducer/train_*.yaml for more info."
)
self.decoder = CustomDecoder(
odim,
args.dec_block_arch,
input_layer=args.custom_dec_input_layer,
repeat_block=args.dec_block_repeat,
positionwise_activation_type=args.
custom_dec_pw_activation_type,
dropout_rate_embed=args.dropout_rate_embed_decoder,
)
decoder_out = self.decoder.dunits
if "custom" in args.etype:
self.most_dom_list += args.dec_block_arch[:]
else:
self.most_dom_list = args.dec_block_arch[:]
else:
self.dec = DecoderRNNT(
odim,
args.dtype,
args.dlayers,
args.dunits,
blank_id,
args.dec_embed_dim,
args.dropout_rate_decoder,
args.dropout_rate_embed_decoder,
)
decoder_out = args.dunits
self.joint_network = JointNetwork(odim, encoder_out, decoder_out,
args.joint_dim,
args.joint_activation_type)
if hasattr(self, "most_dom_list"):
self.most_dom_dim = sorted(
Counter(d["d_hidden"] for d in self.most_dom_list
if "d_hidden" in d).most_common(),
key=lambda x: x[0],
reverse=True,
)[0][0]
self.etype = args.etype
self.dtype = args.dtype
self.sos = odim - 1
self.eos = odim - 1
self.blank_id = blank_id
self.ignore_id = ignore_id
self.space = args.sym_space
self.blank = args.sym_blank
self.odim = odim
self.reporter = Reporter()
if training:
self.criterion = TransLoss(args.trans_type, self.blank_id)
self.default_parameters(args)
if training and (args.report_cer or args.report_wer):
self.error_calculator = ErrorCalculator(
self.decoder if self.dtype == "custom" else self.dec,
self.joint_network,
args.char_list,
args.sym_space,
args.sym_blank,
args.report_cer,
args.report_wer,
)
else:
self.error_calculator = None
self.loss = None
self.rnnlm = None