Indian language machine translation performance is hampered due to the lack of large scale multi-lingual sentence aligned corpora and robust benchmarks. Through this paper, we provide and analyse an automated framework to obtain such a corpus for Indian language neural machine translation (NMT) systems. Our pipeline consists of a baseline NMT system, a retrieval module, and an alignment module that is used to work with publicly available websites such as press releases by the government. The main contribution towards this effort is to obtain an incremental method that uses the above pipeline to iteratively improve the size of the corpus as well as improve each of the components of our system. Through our work, we also evaluate the design choices such as the choice of pivoting language and the effect of iterative incremental increase in corpus size. Our work in addition to providing an automated framework also results in generating a relatively larger corpus as compared to existing corpora that are available for Indian languages. This corpus helps us obtain substantially improved results on the publicly available WAT evaluation benchmark and other standard evaluation benchmarks.

本文提供并分析了一个用于印度语神经机器翻译系统的大规模多语言句子对齐语料库和强大基准的自动化框架，其中包括基线NMT系统，检索模块和用于公共网站的对齐模块，通过迭代增加语料库来改进系统。我们的工作还评估了设计选择，例如枢轴语言的选择和迭代式增量语料库增加的影响。与现有的印度语语料库相比，本工作不仅提供了自动化框架，还产生了一个相对较大的语料库。这个语料库使我们能够在公开的WAT评估基准和其他标准评估基准上获得明显改善的结果。

机器翻译中印度语言的低资源状态再探讨