| | |
| | | "inf" |
| | | ) # min_value = float(np.finfo(torch.tensor(0, dtype=qk.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) |
| | |
| | | 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,) |
| | |
| | | if chunk_mask is not None: |
| | | mask = chunk_mask.unsqueeze(0).unsqueeze(1) | mask |
| | | scores = scores.masked_fill(mask, float("-inf")) |
| | | self.attn = torch.softmax(scores, dim=-1).masked_fill(mask, 0.0) |
| | | attn = torch.softmax(scores, dim=-1).masked_fill(mask, 0.0) |
| | | |
| | | attn_output = self.dropout(self.attn) |
| | | attn_output = self.dropout(attn) |
| | | attn_output = torch.matmul(attn_output, value) |
| | | |
| | | attn_output = self.linear_out( |