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Bagging and Boosting statistical machine translation systems
Xiao, Tong1; Zhu, Jingbo1; Liu, Tongran2; Liu, TR (reprint author), Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, 10A Datun Rd, Beijing 100101, Peoples R China.
2013
发表期刊ARTIFICIAL INTELLIGENCE
ISSN0197-4556
文章类型期刊论文
卷号195页码:496-527
产权排序2
摘要In this article we address the issue of generating diversified translation systems from a single Statistical Machine Translation (SMT) engine for system combination. Unlike traditional approaches, we do not resort to multiple structurally different SMT systems, but instead directly learn a strong SMT system from a single translation engine in a principled way. Our approach is based on Bagging and Boosting which are two instances of the general framework of ensemble learning. The basic idea is that we first generate an ensemble of weak translation systems using a base learning algorithm, and then learn a strong translation system from the ensemble. One of the advantages of our approach is that it can work with any of current SMT systems and make them stronger almost "for free". Beyond this, most system combination methods are directly applicable to the proposed framework for generating the final translation system from the ensemble of weak systems. We evaluate our approach on Chinese-English translation in three state-of-the-art SMT systems, including a phrase-based system, a hierarchical phrase-based system and a syntax-based system. Experimental results on the NIST MT evaluation corpora show that our approach leads to significant improvements in translation accuracy over the baselines. More interestingly, it is observed that our approach is able to improve the existing system combination systems. The biggest improvements are obtained by generating weak systems using Bagging/Boosting, and learning the strong system using a state-of-the-art system combination method. (C) 2012 Elsevier B.V. All rights reserved.
关键词Statistical machine translation Ensemble learning System combination
学科领域Other Applied Psychology
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收录类别SCI
语种英语
项目资助者National Science Foundation of China [61073140, 61272376] ; Natural Science Foundation for the Youth of China [31000468] ; Specialized Research Fund for the Doctoral Program of Higher Education [20100042110031] ; Fundamental Research Funds for the Central Universities
项目简介This work was supported in part by the National Science Foundation of China (Grant Nos.: 61073140, 61272376), the Natural Science Foundation for the Youth of China (Grant No.: 31000468), Specialized Research Fund for the Doctoral Program of Higher Education (Grant No.: 20100042110031) and the Fundamental Research Funds for the Central Universities. The authors would like to thank the anonymous reviewers of ACL 2010 and the AI journal for their pertinent comments, Chunliang Zhang and Shujie Yao for their valuable suggestions for improving this article, and Tianning Li and Rushan Chen for developing parts of the baseline systems.
WOS研究方向Computer Science
WOS类目Computer Science, Artificial Intelligence
WOS记录号WOS:000315839600019
WOS标题词Science & Technology ; Technology
关键词[WOS]RECOGNITION ; COMBINATION ; ALGORITHMS ; LANGUAGE
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/10737
专题中国科学院行为科学重点实验室
通讯作者Liu, TR (reprint author), Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, 10A Datun Rd, Beijing 100101, Peoples R China.
作者单位1.Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China
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Xiao, Tong,Zhu, Jingbo,Liu, Tongran,et al. Bagging and Boosting statistical machine translation systems[J]. ARTIFICIAL INTELLIGENCE,2013,195:496-527.
APA Xiao, Tong,Zhu, Jingbo,Liu, Tongran,&Liu, TR .(2013).Bagging and Boosting statistical machine translation systems.ARTIFICIAL INTELLIGENCE,195,496-527.
MLA Xiao, Tong,et al."Bagging and Boosting statistical machine translation systems".ARTIFICIAL INTELLIGENCE 195(2013):496-527.
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