sequence#
- sequence_mask(seq_ids, valid_lengths)[source]#
To boost the performance, this sequence_mask is different with paddle.nn.functional.sequence_mask
- Parameters:
seq_ids (Tensor) – The whole sequence index, a tensor with a shape of [batch_size, sequence_length].
valid_lengths (Tensor) – The valid length of every sequence, a tensor with a shape of [batch_size].
- Returns:
Returns the output sequence mask
mask
. Its dtype isbool
and has a shape of [batch_size, sequence_length].- Return type:
Tensor