Document-level Neural Machine Translation with Inter-Sentence Attention
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Standard neural machine translation (NMT) is on the assumption of document-level context independent. Most existing document-level NMT methods only focus on briefly introducing document-level information but fail to concern about selecting the most related part inside document context. The capacity of memory network for detecting the most relevant part of the current sentence from the memory provides a natural solution for the requirement of modeling document-level context by document-level NMT. In this work, we propose a Transformer NMT system with associated memory network (AMN) to both capture the document-level context and select the most salient part related to the concerned translation from the memory. Experiments on several tasks show that the proposed method significantly improves the NMT performance over strong Transformer baselines and other related studies.
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