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arXiv 2104.08259cs.CL
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上下文自适应文档级神经机器翻译

Context-Adaptive Document-Level Neural Machine Translation

Zhejiang University(浙江大学)

Linlin Zhang

摘要:

大多数现有的文档级神经机器翻译(NMT)模型利用固定数量的先前或所有全局源句子来处理标准NMT中的上下文无关问题。然而,每一个源句的翻译都得益于不同大小的语境,不恰当的语境可能会损害翻译效果。在这项工作中,我们引入了一种数据自适应方法,使模型能够采用必要的和有用的上下文。具体来说,我们引入了一个轻预测两个文档级的翻译模型来选择显式的上下文。实验结果表明,该方法可以显着提高性能比以前的方法与增益高达1.99 BLEU点。

英文摘要:

Most existing document-level neural machine translation (NMT) models leverage a fixed number of the previous or all global source sentences to handle the context-independent problem in standard NMT. However, the translating of each source sentence benefits from various sizes of context, and inappropriate context may harm the translation performance. In this work, we introduce a data-adaptive method that enables the model to adopt the necessary and useful context. Specifically, we introduce a light predictor into two document-level translation models to select the explicit context. Experiments demonstrate the proposed approach can significantly improve the performance over the previous methods with a gain up to 1.99 BLEU points.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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