tf.nn.collapse_repeated

tf.nn.collapse_repeated(
    labels,
    seq_length,
    name=None
)

Defined in tensorflow/python/ops/ctc_ops.py.

Merge repeated labels into single labels.

Args:

• labels: Tensor of shape (batch, max value in seq_length)
• seq_length: Tensor of shape (batch), sequence length of each batch element.
• name: A name for this Op. Defaults to "collapse_repeated_labels".

Returns:

tuple of Tensor of shape (batch, max_seq_length) with repeated labels collapsed and padded to max_seq_length, eg: [[A, A, B, B, A], [A, B, C, D, E]] => [[A, B, A, 0, 0], [A, B, C, D, E]] and int tensor of shape [batch] with new sequence lengths.