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2018 | OriginalPaper | Chapter

A Comparable Study on Model Averaging, Ensembling and Reranking in NMT

Authors : Yuchen Liu, Long Zhou, Yining Wang, Yang Zhao, Jiajun Zhang, Chengqing Zong

Published in: Natural Language Processing and Chinese Computing

Publisher: Springer International Publishing

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Abstract

Neural machine translation has become a benchmark method in machine translation. Many novel structures and methods have been proposed to improve the translation quality. However, it is difficult to train and turn parameters. In this paper, we focus on decoding techniques that boost translation performance by utilizing existing models. We address the problem from three aspects—parameter, word and sentence level, corresponding to checkpoint averaging, model ensembling and candidates reranking which all do not need to retrain the model. Experimental results have shown that the proposed decoding approaches can significantly improve the performance over baseline model.

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Footnotes
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Metadata
Title
A Comparable Study on Model Averaging, Ensembling and Reranking in NMT
Authors
Yuchen Liu
Long Zhou
Yining Wang
Yang Zhao
Jiajun Zhang
Chengqing Zong
Copyright Year
2018
Book
Natural Language Processing and Chinese Computing

Print ISBN: 978-3-319-99500-7

Electronic ISBN: 978-3-319-99501-4

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-99501-4_26

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