CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT

Petr Gebauer; Ondřej Bojar; Vojtěch Švandelík; Martin Popel

CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT

Petr Gebauer, Ondřej Bojar, Vojtěch Švandelík, Martin Popel

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Abstract

We describe our two NMT systems submitted to the WMT2021 shared task in English-Czech news translation: CUNI-DocTransformer (document-level CUBBITT) and CUNI-Marian-Baselines. We improve the former with a better sentence-segmentation pre-processing and a post-processing for fixing errors in numbers and units. We use the latter for experiments with various backtranslation techniques.

Anthology ID:: 2021.wmt-1.7
Volume:: Proceedings of the Sixth Conference on Machine Translation
Month:: November
Year:: 2021
Address:: Online
Editors:: Loic Barrault, Ondrej Bojar, Fethi Bougares, Rajen Chatterjee, Marta R. Costa-jussa, Christian Federmann, Mark Fishel, Alexander Fraser, Markus Freitag, Yvette Graham, Roman Grundkiewicz, Paco Guzman, Barry Haddow, Matthias Huck, Antonio Jimeno Yepes, Philipp Koehn, Tom Kocmi, Andre Martins, Makoto Morishita, Christof Monz
Venue:: WMT
SIG:: SIGMT
Publisher:: Association for Computational Linguistics
Note:
Pages:: 123–129
Language:
URL:: https://aclanthology.org/2021.wmt-1.7/
DOI:
Bibkey:
Cite (ACL):: Petr Gebauer, Ondřej Bojar, Vojtěch Švandelík, and Martin Popel. 2021. CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT. In Proceedings of the Sixth Conference on Machine Translation, pages 123–129, Online. Association for Computational Linguistics.
Cite (Informal):: CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT (Gebauer et al., WMT 2021)
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PDF:: https://aclanthology.org/2021.wmt-1.7.pdf

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@inproceedings{gebauer-etal-2021-cuni,
    title = "{CUNI} Systems in {WMT}21: Revisiting Backtranslation Techniques for {E}nglish-{C}zech {NMT}",
    author = "Gebauer, Petr  and
      Bojar, Ond{\v{r}}ej  and
      {\v{S}}vandel{\'i}k, Vojt{\v{e}}ch  and
      Popel, Martin",
    editor = "Barrault, Loic  and
      Bojar, Ondrej  and
      Bougares, Fethi  and
      Chatterjee, Rajen  and
      Costa-jussa, Marta R.  and
      Federmann, Christian  and
      Fishel, Mark  and
      Fraser, Alexander  and
      Freitag, Markus  and
      Graham, Yvette  and
      Grundkiewicz, Roman  and
      Guzman, Paco  and
      Haddow, Barry  and
      Huck, Matthias  and
      Yepes, Antonio Jimeno  and
      Koehn, Philipp  and
      Kocmi, Tom  and
      Martins, Andre  and
      Morishita, Makoto  and
      Monz, Christof",
    booktitle = "Proceedings of the Sixth Conference on Machine Translation",
    month = nov,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2021.wmt-1.7/",
    pages = "123--129",
    abstract = "We describe our two NMT systems submitted to the WMT2021 shared task in English-Czech news translation: CUNI-DocTransformer (document-level CUBBITT) and CUNI-Marian-Baselines. We improve the former with a better sentence-segmentation pre-processing and a post-processing for fixing errors in numbers and units. We use the latter for experiments with various backtranslation techniques."
}

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%0 Conference Proceedings
%T CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT
%A Gebauer, Petr
%A Bojar, Ondřej
%A Švandelík, Vojtěch
%A Popel, Martin
%Y Barrault, Loic
%Y Bojar, Ondrej
%Y Bougares, Fethi
%Y Chatterjee, Rajen
%Y Costa-jussa, Marta R.
%Y Federmann, Christian
%Y Fishel, Mark
%Y Fraser, Alexander
%Y Freitag, Markus
%Y Graham, Yvette
%Y Grundkiewicz, Roman
%Y Guzman, Paco
%Y Haddow, Barry
%Y Huck, Matthias
%Y Yepes, Antonio Jimeno
%Y Koehn, Philipp
%Y Kocmi, Tom
%Y Martins, Andre
%Y Morishita, Makoto
%Y Monz, Christof
%S Proceedings of the Sixth Conference on Machine Translation
%D 2021
%8 November
%I Association for Computational Linguistics
%C Online
%F gebauer-etal-2021-cuni
%X We describe our two NMT systems submitted to the WMT2021 shared task in English-Czech news translation: CUNI-DocTransformer (document-level CUBBITT) and CUNI-Marian-Baselines. We improve the former with a better sentence-segmentation pre-processing and a post-processing for fixing errors in numbers and units. We use the latter for experiments with various backtranslation techniques.
%U https://aclanthology.org/2021.wmt-1.7/
%P 123-129

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Markdown (Informal)

[CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT](https://aclanthology.org/2021.wmt-1.7/) (Gebauer et al., WMT 2021)

CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT (Gebauer et al., WMT 2021)

ACL

Petr Gebauer, Ondřej Bojar, Vojtěch Švandelík, and Martin Popel. 2021. CUNI Systems in WMT21: Revisiting Backtranslation Techniques for English-Czech NMT. In Proceedings of the Sixth Conference on Machine Translation, pages 123–129, Online. Association for Computational Linguistics.