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+from typing import Tuple
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+
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+import torch
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+import torch.nn as nn
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+
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+from funasr.models.encoder.sanm_encoder import SANMEncoder
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+from funasr.export.models.encoder.sanm_encoder import SANMEncoder as SANMEncoder_export
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+from funasr.models.encoder.sanm_encoder import SANMVadEncoder
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+from funasr.export.models.encoder.sanm_encoder import SANMVadEncoder as SANMVadEncoder_export
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+
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+class CT_Transformer(nn.Module):
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+ """
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+ Author: Speech Lab, Alibaba Group, China
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+ CT-Transformer: Controllable time-delay transformer for real-time punctuation prediction and disfluency detection
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+ https://arxiv.org/pdf/2003.01309.pdf
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+ """
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+ def __init__(
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+ self,
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+ model,
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+ max_seq_len=512,
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+ model_name='punc_model',
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+ **kwargs,
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+ ):
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+ super().__init__()
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+ onnx = False
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+ if "onnx" in kwargs:
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+ onnx = kwargs["onnx"]
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+ self.embed = model.embed
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+ self.decoder = model.decoder
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+ # self.model = model
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+ self.feats_dim = self.embed.embedding_dim
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+ self.num_embeddings = self.embed.num_embeddings
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+ self.model_name = model_name
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+
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+ if isinstance(model.encoder, SANMEncoder):
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+ self.encoder = SANMEncoder_export(model.encoder, onnx=onnx)
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+ else:
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+ assert False, "Only support samn encode."
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+
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+ def forward(self, inputs: torch.Tensor, text_lengths: torch.Tensor) -> Tuple[torch.Tensor, None]:
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+ """Compute loss value from buffer sequences.
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+
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+ Args:
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+ input (torch.Tensor): Input ids. (batch, len)
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+ hidden (torch.Tensor): Target ids. (batch, len)
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+
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+ """
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+ x = self.embed(inputs)
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+ # mask = self._target_mask(input)
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+ h, _ = self.encoder(x, text_lengths)
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+ y = self.decoder(h)
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+ return y
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+
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+ def get_dummy_inputs(self):
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+ length = 120
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+ text_indexes = torch.randint(0, self.embed.num_embeddings, (2, length))
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+ text_lengths = torch.tensor([length-20, length], dtype=torch.int32)
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+ return (text_indexes, text_lengths)
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+
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+ def get_input_names(self):
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+ return ['inputs', 'text_lengths']
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+
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+ def get_output_names(self):
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+ return ['logits']
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+
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+ def get_dynamic_axes(self):
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+ return {
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+ 'inputs': {
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+ 0: 'batch_size',
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+ 1: 'feats_length'
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+ },
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+ 'text_lengths': {
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+ 0: 'batch_size',
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+ },
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+ 'logits': {
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+ 0: 'batch_size',
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+ 1: 'logits_length'
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+ },
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+ }
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+
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+
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+class CT_Transformer_VadRealtime(nn.Module):
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+ """
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+ Author: Speech Lab, Alibaba Group, China
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+ CT-Transformer: Controllable time-delay transformer for real-time punctuation prediction and disfluency detection
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+ https://arxiv.org/pdf/2003.01309.pdf
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+ """
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+ def __init__(
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+ self,
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+ model,
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+ max_seq_len=512,
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+ model_name='punc_model',
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+ **kwargs,
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+ ):
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+ super().__init__()
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+ onnx = False
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+ if "onnx" in kwargs:
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+ onnx = kwargs["onnx"]
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+
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+ self.embed = model.embed
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+ if isinstance(model.encoder, SANMVadEncoder):
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+ self.encoder = SANMVadEncoder_export(model.encoder, onnx=onnx)
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+ else:
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+ assert False, "Only support samn encode."
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+ self.decoder = model.decoder
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+ self.model_name = model_name
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+
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+
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+
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+ def forward(self, inputs: torch.Tensor,
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+ text_lengths: torch.Tensor,
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+ vad_indexes: torch.Tensor,
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+ sub_masks: torch.Tensor,
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+ ) -> Tuple[torch.Tensor, None]:
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+ """Compute loss value from buffer sequences.
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+
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+ Args:
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+ input (torch.Tensor): Input ids. (batch, len)
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+ hidden (torch.Tensor): Target ids. (batch, len)
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+
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+ """
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+ x = self.embed(inputs)
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+ # mask = self._target_mask(input)
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+ h, _ = self.encoder(x, text_lengths, vad_indexes, sub_masks)
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+ y = self.decoder(h)
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+ return y
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+
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+ def with_vad(self):
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+ return True
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+
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+ def get_dummy_inputs(self):
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+ length = 120
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+ text_indexes = torch.randint(0, self.embed.num_embeddings, (1, length))
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+ text_lengths = torch.tensor([length], dtype=torch.int32)
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+ vad_mask = torch.ones(length, length, dtype=torch.float32)[None, None, :, :]
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+ sub_masks = torch.ones(length, length, dtype=torch.float32)
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+ sub_masks = torch.tril(sub_masks).type(torch.float32)
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+ return (text_indexes, text_lengths, vad_mask, sub_masks[None, None, :, :])
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+
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+ def get_input_names(self):
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+ return ['inputs', 'text_lengths', 'vad_masks', 'sub_masks']
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+
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+ def get_output_names(self):
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+ return ['logits']
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+
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+ def get_dynamic_axes(self):
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+ return {
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+ 'inputs': {
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+ 1: 'feats_length'
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+ },
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+ 'vad_masks': {
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+ 2: 'feats_length1',
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+ 3: 'feats_length2'
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+ },
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+ 'sub_masks': {
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+ 2: 'feats_length1',
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+ 3: 'feats_length2'
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+ },
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+ 'logits': {
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+ 1: 'logits_length'
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+ },
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+ }
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