NTT Neural Machine Translation Systems at WAT 2019

Makoto Morishita; Jun Suzuki; Masaaki Nagata

doi:10.18653/v1/D19-5211

NTT Neural Machine Translation Systems at WAT 2019

Makoto Morishita, Jun Suzuki, Masaaki Nagata

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Abstract

In this paper, we describe our systems that were submitted to the translation shared tasks at WAT 2019. This year, we participated in two distinct types of subtasks, a scientific paper subtask and a timely disclosure subtask, where we only considered English-to-Japanese and Japanese-to-English translation directions. We submitted two systems (En-Ja and Ja-En) for the scientific paper subtask and two systems (Ja-En, texts, items) for the timely disclosure subtask. Three of our four systems obtained the best human evaluation performances. We also confirmed that our new additional web-crawled parallel corpus improves the performance in unconstrained settings.

Anthology ID:: D19-5211
Volume:: Proceedings of the 6th Workshop on Asian Translation
Month:: November
Year:: 2019
Address:: Hong Kong, China
Editors:: Toshiaki Nakazawa, Chenchen Ding, Raj Dabre, Anoop Kunchukuttan, Nobushige Doi, Yusuke Oda, Ondřej Bojar, Shantipriya Parida, Isao Goto, Hidaya Mino
Venue:: WAT
SIG:
Publisher:: Association for Computational Linguistics
Note:
Pages:: 99–105
Language:
URL:: https://aclanthology.org/D19-5211/
DOI:: 10.18653/v1/D19-5211
Bibkey:
Cite (ACL):: Makoto Morishita, Jun Suzuki, and Masaaki Nagata. 2019. NTT Neural Machine Translation Systems at WAT 2019. In Proceedings of the 6th Workshop on Asian Translation, pages 99–105, Hong Kong, China. Association for Computational Linguistics.
Cite (Informal):: NTT Neural Machine Translation Systems at WAT 2019 (Morishita et al., WAT 2019)
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PDF:: https://aclanthology.org/D19-5211.pdf

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@inproceedings{morishita-etal-2019-ntt,
    title = "{NTT} Neural Machine Translation Systems at {WAT} 2019",
    author = "Morishita, Makoto  and
      Suzuki, Jun  and
      Nagata, Masaaki",
    editor = "Nakazawa, Toshiaki  and
      Ding, Chenchen  and
      Dabre, Raj  and
      Kunchukuttan, Anoop  and
      Doi, Nobushige  and
      Oda, Yusuke  and
      Bojar, Ond{\v{r}}ej  and
      Parida, Shantipriya  and
      Goto, Isao  and
      Mino, Hidaya",
    booktitle = "Proceedings of the 6th Workshop on Asian Translation",
    month = nov,
    year = "2019",
    address = "Hong Kong, China",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/D19-5211/",
    doi = "10.18653/v1/D19-5211",
    pages = "99--105",
    abstract = "In this paper, we describe our systems that were submitted to the translation shared tasks at WAT 2019. This year, we participated in two distinct types of subtasks, a scientific paper subtask and a timely disclosure subtask, where we only considered English-to-Japanese and Japanese-to-English translation directions. We submitted two systems (En-Ja and Ja-En) for the scientific paper subtask and two systems (Ja-En, texts, items) for the timely disclosure subtask. Three of our four systems obtained the best human evaluation performances. We also confirmed that our new additional web-crawled parallel corpus improves the performance in unconstrained settings."
}

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%0 Conference Proceedings
%T NTT Neural Machine Translation Systems at WAT 2019
%A Morishita, Makoto
%A Suzuki, Jun
%A Nagata, Masaaki
%Y Nakazawa, Toshiaki
%Y Ding, Chenchen
%Y Dabre, Raj
%Y Kunchukuttan, Anoop
%Y Doi, Nobushige
%Y Oda, Yusuke
%Y Bojar, Ondřej
%Y Parida, Shantipriya
%Y Goto, Isao
%Y Mino, Hidaya
%S Proceedings of the 6th Workshop on Asian Translation
%D 2019
%8 November
%I Association for Computational Linguistics
%C Hong Kong, China
%F morishita-etal-2019-ntt
%X In this paper, we describe our systems that were submitted to the translation shared tasks at WAT 2019. This year, we participated in two distinct types of subtasks, a scientific paper subtask and a timely disclosure subtask, where we only considered English-to-Japanese and Japanese-to-English translation directions. We submitted two systems (En-Ja and Ja-En) for the scientific paper subtask and two systems (Ja-En, texts, items) for the timely disclosure subtask. Three of our four systems obtained the best human evaluation performances. We also confirmed that our new additional web-crawled parallel corpus improves the performance in unconstrained settings.
%R 10.18653/v1/D19-5211
%U https://aclanthology.org/D19-5211/
%U https://doi.org/10.18653/v1/D19-5211
%P 99-105

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Markdown (Informal)

[NTT Neural Machine Translation Systems at WAT 2019](https://aclanthology.org/D19-5211/) (Morishita et al., WAT 2019)

NTT Neural Machine Translation Systems at WAT 2019 (Morishita et al., WAT 2019)

ACL

Makoto Morishita, Jun Suzuki, and Masaaki Nagata. 2019. NTT Neural Machine Translation Systems at WAT 2019. In Proceedings of the 6th Workshop on Asian Translation, pages 99–105, Hong Kong, China. Association for Computational Linguistics.