tf.contrib.crf.crf_binary_score(tag_indices, sequence_lengths, transition_params)
See the guide: CRF (contrib)
Computes the binary scores of tag sequences.
tag_indices: A [batch_size, max_seq_len] matrix of tag indices.
sequence_lengths: A [batch_size] vector of true sequence lengths.
transition_params: A [num_tags, num_tags] matrix of binary potentials. Returns:
binary_scores: A [batch_size] vector of binary scores.