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| 一种考虑对齐不一致的短语翻译概率估计方法 | |
| 引用本文： | 苏劲松,刘群,吕雅娟. 一种考虑对齐不一致的短语翻译概率估计方法[J]. 中文信息学报, 2011, 25(3): 118-123 |
| 作者姓名： | 苏劲松 刘群 吕雅娟 |
| 作者单位： | 1. 中国科学院 计算技术研究所 智能信息处理重点实验室,北京 100190; 2. 中国科学院 研究生院,北京 100190 |
| 基金项目： | 国家自然科学基金重点资助项目 |
| 摘 要： | 在统计机器翻译中,短语翻译概率特征对最终的翻译结果有着重大的影响。传统的估计方法只考虑了双语短语同时出现,满足对齐一致性的情况,而没有对其他情况进行统计,因而短语翻译概率的估计不够准确。该文中,我们修改了传统的短语概率计算公式,在估计概率的过程中充分地考虑短语的各种出现情况。多个测试集上的实验结果证明了我们方法的有效性。 |
| 关 键 词： | 统计机器翻译 对齐不一致 短语翻译概率 |
A Phrase Translation Probability Estimation Method Considering Alignment Unconsistency |
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| SU Jinsong,LIU Qun,LV Yajuan. A Phrase Translation Probability Estimation Method Considering Alignment Unconsistency[J]. Journal of Chinese Information Processing, 2011, 25(3): 118-123 | |
| Authors: | SU Jinsong LIU Qun LV Yajuan |
| Affiliation: | 1. Key Laboratory of Intelligent Information Processing, Institute of Computing Technology, Beijing 100190, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100190, China |
| Abstract: | The phrase translation probability features have great effect on the statistical machine translation. The traditional method has a deficiency in the estimation of phrase translation probability by just dealing with the phrases with consistent word alignments. In this paper, we modify the traditional formula to consider all occurrences of phrases in the corpus. The experimental results on the various test sets demonstrate the effectiveness of our method. Key wordsstatistical machine translation; alignment unconsistency; phrase translation probability |
| Keywords: | statistical machine translation alignment unconsistency phrase translation probability |
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