tf.contrib.crf.crf_unary_score( tag_indices, sequence_lengths, inputs )
See the guide: CRF (contrib)
Computes the unary 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.
inputs: A [batch_size, max_seq_len, num_tags] tensor of unary potentials.
unary_scores: A [batch_size] vector of unary scores.