Computes the unary scores of tag sequences.
crf_unary_score(tag_indices, sequence_lengths, inputs)
| tag_indices | A [batch_size, max_seq_len] matrix of tag indices. |
|---|---|
| sequence_lengths | A [batch_size] vector of true sequence lengths. |
| inputs | A [batch_size, max_seq_len, num_tags] tensor of unary potentials. |
unary_scores: A [batch_size] vector of unary scores.