I am building a seq2seq model with tensorflow. Can you explain the details of the two beam search functions? Thank you.
tf.nn.ctc.beam_search_decoder https://www.tensorflow.org/api_docs/python/tf/nn/ctc_beam_search_decoder
tf.contrib.seq2seq.BeamSearchDecoder https://www.tensorflow.org/api_docs/python/tf/contrib/seq2seq/BeamSearchDecoder