多语言机器翻译使用一个翻译模型来处理多种语言。

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机器翻译是指通过计算机将源语言句子翻译到与之语义等价的目标语言句子的过程,是自然语言处理领域的一个重要研究方向。神经机器翻译仅需使用神经网络就能实现从源语言到目标语言的端到端翻译,目前已成为机器翻译研究的主流方向。该文选取了近期神经机器翻译的几个主要研究领域,包括同声传译、多模态机器翻译、非自回归模型、篇章翻译、领域自适应、多语言翻译和模型训练,并对这些领域的前沿研究进展做简要介绍。

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We present Samanantar, the largest publicly available parallel corpora collection for Indic languages. The collection contains a total of 46.9 million sentence pairs between English and 11 Indic languages (from two language families). In particular, we compile 12.4 million sentence pairs from existing, publicly-available parallel corpora, and we additionally mine 34.6 million sentence pairs from the web, resulting in a 2.8X increase in publicly available sentence pairs. We mine the parallel sentences from the web by combining many corpora, tools, and methods. In particular, we use (a) web-crawled monolingual corpora, (b) document OCR for extracting sentences from scanned documents (c) multilingual representation models for aligning sentences, and (d) approximate nearest neighbor search for searching in a large collection of sentences. Human evaluation of samples from the newly mined corpora validate the high quality of the parallel sentences across 11 language pairs. Further, we extracted 82.7 million sentence pairs between all 55 Indic language pairs from the English-centric parallel corpus using English as the pivot language. We trained multilingual NMT models spanning all these languages on Samanantar and compared with other baselines and previously reported results on publicly available benchmarks. Our models outperform existing models on these benchmarks, establishing the utility of Samanantar. Our data (https://indicnlp.ai4bharat.org/samanantar) and models (https://github.com/AI4Bharat/IndicTrans) will be available publicly and we hope they will help advance research in Indic NMT and multilingual NLP for Indic languages.

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We present Samanantar, the largest publicly available parallel corpora collection for Indic languages. The collection contains a total of 46.9 million sentence pairs between English and 11 Indic languages (from two language families). In particular, we compile 12.4 million sentence pairs from existing, publicly-available parallel corpora, and we additionally mine 34.6 million sentence pairs from the web, resulting in a 2.8X increase in publicly available sentence pairs. We mine the parallel sentences from the web by combining many corpora, tools, and methods. In particular, we use (a) web-crawled monolingual corpora, (b) document OCR for extracting sentences from scanned documents (c) multilingual representation models for aligning sentences, and (d) approximate nearest neighbor search for searching in a large collection of sentences. Human evaluation of samples from the newly mined corpora validate the high quality of the parallel sentences across 11 language pairs. Further, we extracted 82.7 million sentence pairs between all 55 Indic language pairs from the English-centric parallel corpus using English as the pivot language. We trained multilingual NMT models spanning all these languages on Samanantar and compared with other baselines and previously reported results on publicly available benchmarks. Our models outperform existing models on these benchmarks, establishing the utility of Samanantar. Our data (https://indicnlp.ai4bharat.org/samanantar) and models (https://github.com/AI4Bharat/IndicTrans) will be available publicly and we hope they will help advance research in Indic NMT and multilingual NLP for Indic languages.

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