Discriminative Word Alignment by Linear Modeling
文献类型：期刊论文
| 作者 | Liu, Yang; Liu, Qun; Lin, Shouxun |
| 刊名 | COMPUTATIONAL LINGUISTICS
 |
| 出版日期 | 2010-09-01 |
| 卷号 | 36期号:3页码:303-339 |
| ISSN号 | 0891-2017 |
| 英文摘要 | Word alignment plays an important role in many NLP tasks as it indicates the correspondence between words in a parallel text. Although widely used to align large bilingual corpora, generative models are hard to extend to incorporate arbitrary useful linguistic information. This article presents a discriminative framework for word alignment based on a linear model. Within this framework, all knowledge sources are treated as feature functions, which depend on a source language sentence, a target language sentence, and the alignment between them. We describe a number of features that could produce symmetric alignments. Our model is easy to extend and can be optimized with respect to evaluation metrics directly. The model achieves state-of-the-art alignment quality on three word alignment shared tasks for five language pairs with varying divergence and richness of resources. We further show that our approach improves translation performance for various statistical machine translation systems. |
| 资助项目 | National Natural Science Foundation of China[60603095] ; National Natural Science Foundation of China[60573188] |
| WOS研究方向 | Computer Science ; Linguistics |
| 语种 | 英语 |
| WOS记录号 | WOS:000281744900002 |
| 出版者 | M I T PRESS |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/12328]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Liu, Yang |
| 作者单位 | Chinese Acad Sci, Inst Comp Technol, Key Lab Intelligent Informat Proc, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yang,Liu, Qun,Lin, Shouxun. Discriminative Word Alignment by Linear Modeling[J]. COMPUTATIONAL LINGUISTICS,2010,36(3):303-339. |
| APA | Liu, Yang,Liu, Qun,&Lin, Shouxun.(2010).Discriminative Word Alignment by Linear Modeling.COMPUTATIONAL LINGUISTICS,36(3),303-339. |
| MLA | Liu, Yang,et al."Discriminative Word Alignment by Linear Modeling".COMPUTATIONAL LINGUISTICS 36.3(2010):303-339. |
入库方式： OAI收割
来源：计算技术研究所
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