arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.00308cs.CL
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从多个源中选择回译数据用于改进的神经机器翻译

Selecting Backtranslated Data from Multiple Sources for Improved Neural Machine Translation

University of the Basque Country (UPV/EHU)(巴斯克大学(UPV/EHU));Dublin City University(都柏林城市大学)

Xabier Soto, Dimitar Shterionov, Alberto Poncelas, Andy Way

摘要:

机器翻译(MT)已经受益于使用源自翻译单语语料库的合成训练数据,这是一种被称为回译的技术。将来自不同来源的反向翻译数据组合在一起,比单独使用这些数据会产生更好的结果。在这项工作中,我们分析了基于规则,基于短语的统计和神经MT系统翻译的数据对新的MT系统的影响。我们使用一个真实世界的低资源用例(巴斯克语到西班牙语在临床领域)以及高资源语言对(德语到英语)来测试不同的场景与回译,并采用数据选择来优化合成语料库。我们采用不同的数据选择策略,以减少使用的数据量,同时保持高质量的MT系统。我们进一步调整的数据选择方法,考虑到质量的MT系统用于回译和词汇多样性的语料库。我们的实验表明,将来自不同来源的反向翻译数据合并可能是有益的,并且利用数据选择可以提高性能。

英文摘要:

Machine translation (MT) has benefited from using synthetic training data originating from translating monolingual corpora, a technique known as backtranslation. Combining backtranslated data from different sources has led to better results than when using such data in isolation. In this work we analyse the impact that data translated with rule-based, phrase-based statistical and neural MT systems has on new MT systems. We use a real-world low-resource use-case (Basque-to-Spanish in the clinical domain) as well as a high-resource language pair (German-to-English) to test different scenarios with backtranslation and employ data selection to optimise the synthetic corpora. We exploit different data selection strategies in order to reduce the amount of data used, while at the same time maintaining high-quality MT systems. We further tune the data selection method by taking into account the quality of the MT systems used for backtranslation and lexical diversity of the resulting corpora. Our experiments show that incorporating backtranslated data from different sources can be beneficial, and that availing of data selection can yield improved performance.

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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