crf_decode_backward: CRF decode backward
Description
Computes backward decoding in a linear-chain CRF.
Usage
crf_decode_backward(inputs, state)
Arguments
inputs
A [batch_size, num_tags] matrix of backpointer of next step (in time order).
state
A [batch_size, 1] matrix of tag index of next step.
Value
new_tags: A [batch_size, num_tags] tensor containing the new tag indices.