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Meteor++: Incorporating Copy Knowledge into Machine Translation Evaluation

Yinuo Guo, Chong Ruan, Junfeng Hu


Abstract
In machine translation evaluation, a good candidate translation can be regarded as a paraphrase of the reference. We notice that some words are always copied during paraphrasing, which we call copy knowledge. Considering the stability of such knowledge, a good candidate translation should contain all these words appeared in the reference sentence. Therefore, in this participation of the WMT’2018 metrics shared task we introduce a simple statistical method for copy knowledge extraction, and incorporate it into Meteor metric, resulting in a new machine translation metric Meteor++. Our experiments show that Meteor++ can nicely integrate copy knowledge and improve the performance significantly on WMT17 and WMT15 evaluation sets.
Anthology ID:
W18-6454
Volume:
Proceedings of the Third Conference on Machine Translation: Shared Task Papers
Month:
October
Year:
2018
Address:
Belgium, Brussels
Editors:
Ondřej Bojar, Rajen Chatterjee, Christian Federmann, Mark Fishel, Yvette Graham, Barry Haddow, Matthias Huck, Antonio Jimeno Yepes, Philipp Koehn, Christof Monz, Matteo Negri, Aurélie Névéol, Mariana Neves, Matt Post, Lucia Specia, Marco Turchi, Karin Verspoor
Venue:
WMT
SIG:
SIGMT
Publisher:
Association for Computational Linguistics
Note:
Pages:
740–745
Language:
URL:
https://aclanthology.org/W18-6454
DOI:
10.18653/v1/W18-6454
Bibkey:
Cite (ACL):
Yinuo Guo, Chong Ruan, and Junfeng Hu. 2018. Meteor++: Incorporating Copy Knowledge into Machine Translation Evaluation. In Proceedings of the Third Conference on Machine Translation: Shared Task Papers, pages 740–745, Belgium, Brussels. Association for Computational Linguistics.
Cite (Informal):
Meteor++: Incorporating Copy Knowledge into Machine Translation Evaluation (Guo et al., WMT 2018)
Copy Citation:
PDF:
https://aclanthology.org/W18-6454.pdf