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A three-pass system combination framework by combining multiple hypothesis alignment methods

Du, Jinhua and Way, Andy (2009) A three-pass system combination framework by combining multiple hypothesis alignment methods. In: IALP-09: International Conference on Asian Language Processing, 7-9 Dec. 2009, Singapore. ISBN 978-0-7695-3904-1

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Abstract

So far, many effective hypothesis alignment metrics have been proposed and applied to the system combination, such as TER, HMM, ITER and IHMM. In addition, the Minimum Bayes-risk (MBR) decoding and the confusion network (CN) have become the state-of-the art techniques in system combination. In this paper, we present a three-pass system combination strategy that can combine hypothesis alignment results derived from different alignment metrics to generate a better translation. Firstly the different alignment metrics are carried out to align the backbone and hypotheses, and the individual CN is built corresponding to each alignment results; then we construct a super network by merging the multiple metric-based CN and generate a consensus output. Finally a modified consensus network MBR (ConMBR) approach is employed to search a best translation. Our proposed strategy out performs the best single CN as well as the best single system in our experiments on NIST Chinese-to-English test set.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:Asian language translation
Subjects:Computer Science > Machine translating
DCU Faculties and Centres:Research Initiatives and Centres > Centre for Next Generation Localisation (CNGL)
DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
Published in:International Conference on Asian Language Processing. . ISBN 978-0-7695-3904-1
Official URL:http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5380760&isnumber=5380723
Copyright Information:© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:16011
Deposited On:16 May 2011 13:55 by Shane Harper. Last Modified 16 May 2011 13:55

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