Transition based Graph Decoder for Neural Machine Translation

Leshem Choshen, Omri Abend

While a number of works showed gains from incorporating source-side symbolic syntactic and semantic structure into neural machine translation (NMT), much fewer works addressed the decoding of such structure. We propose a general Transformer-based approach for tree and graph decoding based on generating a sequence of transitions, inspired by a similar approach that uses RNNs by Dyer (2016). Experiments with using the proposed decoder with Universal Dependencies syntax on English-German, German-English and English-Russian show improved performance over the standard Transformer decoder, as well as over ablated versions of the model.\tacltxt{\footnote{All code implementing the presented models will be released upon acceptance.

Knowledge Graph



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