一种用于机器翻译的相似句对检索方法

在基于语料库的机器翻译系统中，相似句对的检索对于翻译的质量具有非常重要的作用。本文提出一种新颖的方法，可以利用双语例句来帮助度量待翻译句子与例句的相似度。为了提高检索的效率，我们还提供了一个双层的语料库索引方法。由于我们的相似度度量在计算相似度时考虑了例句对最终翻译结果的影响，因此在翻译实验中取得了较好好的效果。

A Similar Sentence Pair Retrieval Approach to Machine Translation

The retrieval of similar sentence pairs is very important in the corpus-based machine translation for the translation quality. In this paper, we present a novel approach, which makes use of the bilingual examples to measure the similarity of the source input sentence and the examples. In order to raise the retrieval efficiency, we provide a two-level corpus indexing method. Because our metric considers the effects of the example on the final translation, it will help to improve the translation results.