| | |
| | | "inf" |
| | | ) # float(numpy.finfo(torch.tensor(0, dtype=scores.dtype).numpy().dtype).min) |
| | | scores = scores.masked_fill(mask, min_value) |
| | | self.attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | mask, 0.0 |
| | | ) # (batch, head, time1, time2) |
| | | else: |
| | | self.attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | |
| | | p_attn = self.dropout(self.attn) |
| | | p_attn = self.dropout(attn) |
| | | x = torch.matmul(p_attn, value) # (batch, head, time1, d_k) |
| | | x = ( |
| | | x.transpose(1, 2).contiguous().view(n_batch, -1, self.h * self.d_k) |
| | |
| | | n_feat, |
| | | dropout_rate, |
| | | kernel_size, |
| | | sanm_shfit=0, |
| | | sanm_shift=0, |
| | | lora_list=None, |
| | | lora_rank=8, |
| | | lora_alpha=16, |
| | |
| | | else: |
| | | self.linear_out = nn.Linear(n_feat, n_feat) |
| | | self.linear_q_k_v = nn.Linear(in_feat, n_feat * 3) |
| | | self.attn = None |
| | | attn = None |
| | | self.dropout = nn.Dropout(p=dropout_rate) |
| | | |
| | | self.fsmn_block = nn.Conv1d( |
| | |
| | | ) |
| | | # padding |
| | | left_padding = (kernel_size - 1) // 2 |
| | | if sanm_shfit > 0: |
| | | left_padding = left_padding + sanm_shfit |
| | | if sanm_shift > 0: |
| | | left_padding = left_padding + sanm_shift |
| | | right_padding = kernel_size - 1 - left_padding |
| | | self.pad_fn = nn.ConstantPad1d((left_padding, right_padding), 0.0) |
| | | |
| | | def forward_fsmn(self, inputs, mask, mask_shfit_chunk=None): |
| | | def forward_fsmn(self, inputs, mask, mask_shift_chunk=None): |
| | | b, t, d = inputs.size() |
| | | if mask is not None: |
| | | mask = torch.reshape(mask, (b, -1, 1)) |
| | | if mask_shfit_chunk is not None: |
| | | mask = mask * mask_shfit_chunk |
| | | if mask_shift_chunk is not None: |
| | | mask = mask * mask_shift_chunk |
| | | inputs = inputs * mask |
| | | |
| | | x = inputs.transpose(1, 2) |
| | |
| | | "inf" |
| | | ) # float(numpy.finfo(torch.tensor(0, dtype=scores.dtype).numpy().dtype).min) |
| | | scores = scores.masked_fill(mask, min_value) |
| | | self.attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | mask, 0.0 |
| | | ) # (batch, head, time1, time2) |
| | | else: |
| | | self.attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | |
| | | p_attn = self.dropout(self.attn) |
| | | p_attn = self.dropout(attn) |
| | | x = torch.matmul(p_attn, value) # (batch, head, time1, d_k) |
| | | x = ( |
| | | x.transpose(1, 2).contiguous().view(n_batch, -1, self.h * self.d_k) |
| | |
| | | |
| | | return self.linear_out(x) # (batch, time1, d_model) |
| | | |
| | | def forward(self, x, mask, mask_shfit_chunk=None, mask_att_chunk_encoder=None): |
| | | def forward(self, x, mask, mask_shift_chunk=None, mask_att_chunk_encoder=None): |
| | | """Compute scaled dot product attention. |
| | | |
| | | Args: |
| | |
| | | |
| | | """ |
| | | q_h, k_h, v_h, v = self.forward_qkv(x) |
| | | fsmn_memory = self.forward_fsmn(v, mask, mask_shfit_chunk) |
| | | fsmn_memory = self.forward_fsmn(v, mask, mask_shift_chunk) |
| | | q_h = q_h * self.d_k ** (-0.5) |
| | | scores = torch.matmul(q_h, k_h.transpose(-2, -1)) |
| | | att_outs = self.forward_attention(v_h, scores, mask, mask_att_chunk_encoder) |
| | |
| | | def forward_attention(self, value, scores, mask): |
| | | scores = scores + mask |
| | | |
| | | self.attn = torch.softmax(scores, dim=-1) |
| | | context_layer = torch.matmul(self.attn, value) # (batch, head, time1, d_k) |
| | | attn = torch.softmax(scores, dim=-1) |
| | | context_layer = torch.matmul(attn, value) # (batch, head, time1, d_k) |
| | | |
| | | context_layer = context_layer.permute(0, 2, 1, 3).contiguous() |
| | | new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) |
| | |
| | | def forward_attention(self, value, scores, mask): |
| | | scores = scores + mask |
| | | |
| | | self.attn = torch.softmax(scores, dim=-1) |
| | | context_layer = torch.matmul(self.attn, value) # (batch, head, time1, d_k) |
| | | attn = torch.softmax(scores, dim=-1) |
| | | context_layer = torch.matmul(attn, value) # (batch, head, time1, d_k) |
| | | |
| | | context_layer = context_layer.permute(0, 2, 1, 3).contiguous() |
| | | new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) |
| | |
| | | |
| | | """ |
| | | |
| | | def __init__(self, n_feat, dropout_rate, kernel_size, sanm_shfit=0): |
| | | def __init__(self, n_feat, dropout_rate, kernel_size, sanm_shift=0): |
| | | """Construct an MultiHeadedAttention object.""" |
| | | super().__init__() |
| | | |
| | |
| | | # padding |
| | | # padding |
| | | left_padding = (kernel_size - 1) // 2 |
| | | if sanm_shfit > 0: |
| | | left_padding = left_padding + sanm_shfit |
| | | if sanm_shift > 0: |
| | | left_padding = left_padding + sanm_shift |
| | | right_padding = kernel_size - 1 - left_padding |
| | | self.pad_fn = nn.ConstantPad1d((left_padding, right_padding), 0.0) |
| | | self.kernel_size = kernel_size |
| | | |
| | | def forward(self, inputs, mask, cache=None, mask_shfit_chunk=None): |
| | | def forward(self, inputs, mask, cache=None, mask_shift_chunk=None): |
| | | """ |
| | | :param x: (#batch, time1, size). |
| | | :param mask: Mask tensor (#batch, 1, time) |
| | |
| | | if mask is not None: |
| | | mask = torch.reshape(mask, (b, -1, 1)) |
| | | # logging.info("in fsmn, mask: {}, {}".format(mask.size(), mask[0:100:50, :, :])) |
| | | if mask_shfit_chunk is not None: |
| | | # logging.info("in fsmn, mask_fsmn: {}, {}".format(mask_shfit_chunk.size(), mask_shfit_chunk[0:100:50, :, :])) |
| | | mask = mask * mask_shfit_chunk |
| | | if mask_shift_chunk is not None: |
| | | # logging.info("in fsmn, mask_fsmn: {}, {}".format(mask_shift_chunk.size(), mask_shift_chunk[0:100:50, :, :])) |
| | | mask = mask * mask_shift_chunk |
| | | # logging.info("in fsmn, mask_after_fsmn: {}, {}".format(mask.size(), mask[0:100:50, :, :])) |
| | | # print("in fsmn, mask", mask.size()) |
| | | # print("in fsmn, inputs", inputs.size()) |
| | |
| | | # logging.info( |
| | | # "scores: {}, mask_size: {}".format(scores.size(), mask.size())) |
| | | scores = scores.masked_fill(mask, min_value) |
| | | self.attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | mask, 0.0 |
| | | ) # (batch, head, time1, time2) |
| | | else: |
| | | self.attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | p_attn = self.dropout(self.attn) |
| | | attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | p_attn = self.dropout(attn) |
| | | x = torch.matmul(p_attn, value) # (batch, head, time1, d_k) |
| | | x = ( |
| | | x.transpose(1, 2).contiguous().view(n_batch, -1, self.h * self.d_k) |
| | | ) # (batch, time1, d_model) |
| | | if ret_attn: |
| | | return self.linear_out(x), self.attn # (batch, time1, d_model) |
| | | return self.linear_out(x), attn # (batch, time1, d_model) |
| | | return self.linear_out(x) # (batch, time1, d_model) |
| | | |
| | | def forward(self, x, memory, memory_mask, ret_attn=False): |
| | |
| | | return q, k, v |
| | | |
| | | def forward_attention(self, value, scores, mask, ret_attn): |
| | | scores = scores + mask |
| | | scores = scores + mask.to(scores.device) |
| | | |
| | | self.attn = torch.softmax(scores, dim=-1) |
| | | context_layer = torch.matmul(self.attn, value) # (batch, head, time1, d_k) |
| | | attn = torch.softmax(scores, dim=-1) |
| | | context_layer = torch.matmul(attn, value) # (batch, head, time1, d_k) |
| | | |
| | | context_layer = context_layer.permute(0, 2, 1, 3).contiguous() |
| | | new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) |
| | | context_layer = context_layer.view(new_context_layer_shape) |
| | | if ret_attn: |
| | | return self.linear_out(context_layer), self.attn |
| | | return self.linear_out(context_layer), attn |
| | | return self.linear_out(context_layer) # (batch, time1, d_model) |
| | | |
| | | |
| | |
| | | "inf" |
| | | ) # float(numpy.finfo(torch.tensor(0, dtype=scores.dtype).numpy().dtype).min) |
| | | scores = scores.masked_fill(mask, min_value) |
| | | self.attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | attn = torch.softmax(scores, dim=-1).masked_fill( |
| | | mask, 0.0 |
| | | ) # (batch, head, time1, time2) |
| | | else: |
| | | self.attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2) |
| | | |
| | | p_attn = self.dropout(self.attn) |
| | | p_attn = self.dropout(attn) |
| | | x = torch.matmul(p_attn, value) # (batch, head, time1, d_k) |
| | | x = ( |
| | | x.transpose(1, 2).contiguous().view(n_batch, -1, self.h * self.d_k) |