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Quality Estimation for Machine Translation Using the Joint Method of Evaluation Criteria and Statistical Modeling
Han, Aaron Li-Feng; Yi Lu; Derek F. Wong; Lidia S. Chao; Liangye He; Junwen Xing
2013
Conference Namethe Eighth Workshop on Statistical Machine Translation
Source PublicationProceedings of the Eighth Workshop on Statistical Machine Translation
Pages365–372
Conference DateAugust 8-9, 2013
Conference PlaceSofia, Bulgaria
Abstract

This paper is to introduce our participation in the WMT13 shared tasks on Quality Estimation for machine translation without using reference translations. We submitted the results for Task 1.1 (sentence-level quality estimation), Task 1.2 (system selection) and Task 2 (word-level quality estimation). In Task 1.1, we used an enhanced version of BLEU metric without using reference translations to evaluate the translation quality. In Task 1.2, we utilized a probability model Naïve Bayes (NB) as a classification algorithm with the features borrowed from the traditional evaluation metrics. In Task 2, to take the contextual information into account, we employed a discriminative undirected probabilistic graphical model Conditional random field (CRF), in addition to the NB algorithm. The training experiments on the past WMT corpora showed that the designed methods of this paper yielded promising results especially the statistical models of CRF and NB. The official results show that our CRF model achieved the highest F-score 0.8297 in binary classification of Task 2.

Language英語English
Fulltext Access
Document TypeConference paper
CollectionFaculty of Science and Technology
DEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
AffiliationNatural Language Processing & Portuguese-Chinese Machine Translation Laboratory Department of Computer and Information Science University of Macau, Macau S.A.R. China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Han, Aaron Li-Feng,Yi Lu,Derek F. Wong,et al. Quality Estimation for Machine Translation Using the Joint Method of Evaluation Criteria and Statistical Modeling[C],2013:365–372.
APA Han, Aaron Li-Feng,Yi Lu,Derek F. Wong,Lidia S. Chao,Liangye He,&Junwen Xing.(2013).Quality Estimation for Machine Translation Using the Joint Method of Evaluation Criteria and Statistical Modeling.Proceedings of the Eighth Workshop on Statistical Machine Translation,365–372.
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