For each token w i , after obtaining its translation candidates list T (w i ) and contextual representation c i , we impose a selective attention mechanism to automatically weigh each candidate.
the weight of the jth candidate T is computed as: where m j measures the semantic relatedness of c i and T , which is computed by: where [;] indicates the concatenation operations; y denotes the Chinese word embedding of ; W r ∈ R d×1 and b r ∈ R are parameter matrix and bias respectively.