title: What is the difference between Luong attention and Bahdanau attention?
body: <p>These two attentions are used in <strong>seq2seq</strong> modules. The two different attentions are introduced as multiplicative and additive attentions in <a href="https://www.tensorflow.org/versions/master/api_guides/python/contrib.seq2seq" rel="noreferrer">this</a> TensorFlow documentation. What is the difference?</p>