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Process."],"published-print":{"date-parts":[[2022,5,31]]},"abstract":"<jats:p>Document-level neural machine translation (DocNMT) has yielded attractive improvements. In this article, we systematically analyze the discourse phenomena in Chinese-to-English translation, and focus on the most obvious ones, namely lexical translation consistency. To alleviate the lexical inconsistency, we propose an effective approach that is aware of the words which need to be translated consistently and constrains the model to produce more consistent translations. Specifically, we first introduce a global context extractor to extract the document context and consistency context, respectively. Then, the two types of global context are integrated into a encoder enhancer and a decoder enhancer to improve the lexical translation consistency. We create a test set to evaluate the lexical consistency automatically. Experiments demonstrate that our approach can significantly alleviate the lexical translation inconsistency. In addition, our approach can also substantially improve the translation quality compared to sentence-level Transformer.<\/jats:p>","DOI":"10.1145\/3485469","type":"journal-article","created":{"date-parts":[[2021,12,13]],"date-time":"2021-12-13T14:36:25Z","timestamp":1639406185000},"page":"1-21","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":5,"title":["Enhancing Lexical Translation Consistency for Document-Level Neural Machine Translation"],"prefix":"10.1145","volume":"21","author":[{"given":"Xiaomian","family":"Kang","sequence":"first","affiliation":[{"name":"National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences and School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, P. R. 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