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arXiv 0902.1033cs.CL
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统计机器翻译的新置信度

New Confidence Measures for Statistical Machine Translation

LORIA(洛里亚实验室)

Sylvain Raybaud, Caroline Lavecchia, David Langlois, Kamel Smaïli

摘要:

置信度度量能够估计由机器翻译系统提供的假设的可靠性。置信度的问题可以看作是一个测试的过程:我们要决定由机器翻译系统提供的最可能的单词序列是否正确。在下文中,我们描述了几个原始的词级置信度的机器翻译,基于互信息,n-gram语言模型和词汇特征语言模型。我们评估他们如何单独或一起执行,并表明,使用基于互信息的置信度测量的组合产生的分类出错率低至25.1%,F-测量值为0.708。

英文摘要:

A confidence measure is able to estimate the reliability of an hypothesis provided by a machine translation system. The problem of confidence measure can be seen as a process of testing : we want to decide whether the most probable sequence of words provided by the machine translation system is correct or not. In the following we describe several original word-level confidence measures for machine translation, based on mutual information, n-gram language model and lexical features language model. We evaluate how well they perform individually or together, and show that using a combination of confidence measures based on mutual information yields a classification error rate as low as 25.1% with an F-measure of 0.708.

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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