arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.07907cs.CL
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神经机器翻译中基于指针的双语词汇融合

Pointer-based Fusion of Bilingual Lexicons into Neural Machine Translation

Simon Fraser University(西蒙弗雷泽大学)

Jetic Gū, Hassan S. Shavarani, Anoop Sarkar

摘要:

神经机器翻译(NMT)系统需要大量高质量的域内并行语料库进行训练。最先进的NMT系统仍然面临着与词汇表外单词和处理低资源语言对相关的挑战。在本文中,我们提出并比较了几种模型的融合双语词典的端到端训练序列到序列模型的机器翻译。其结果是一个融合模型与两个信息源的解码器:神经条件语言模型和双语词典。该融合模型学习如何结合两种信息源,以产生更高质量的翻译输出。我们的实验表明,我们提出的模型在相对低资源的情况下工作得很好,也有效地减少了NMT的参数大小和训练成本,而不牺牲性能。

英文摘要:

Neural machine translation (NMT) systems require large amounts of high quality in-domain parallel corpora for training. State-of-the-art NMT systems still face challenges related to out-of-vocabulary words and dealing with low-resource language pairs. In this paper, we propose and compare several models for fusion of bilingual lexicons with an end-to-end trained sequence-to-sequence model for machine translation. The result is a fusion model with two information sources for the decoder: a neural conditional language model and a bilingual lexicon. This fusion model learns how to combine both sources of information in order to produce higher quality translation output. Our experiments show that our proposed models work well in relatively low-resource scenarios, and also effectively reduce the parameter size and training cost for NMT without sacrificing 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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