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An exploratory study on multilingual quality estimation
Sun, Shuo Fomicheva, Marina Blain, Frederic Chaudhary, Vishrav El-Kishky, Ahmed Renduchintala, Adithya Guzman, Francisco Specia, Lucia
Sun, Shuo
Fomicheva, Marina
Blain, Frederic
Chaudhary, Vishrav
El-Kishky, Ahmed
Renduchintala, Adithya
Guzman, Francisco
Specia, Lucia
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2020-12-31
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Abstract
Predicting the quality of machine translation has traditionally been addressed with language-specific models, under the assumption that the quality label distribution or linguistic features exhibit traits that are not shared across languages. An obvious disadvantage of this approach is the need for labelled data for each given language pair. We challenge this assumption by exploring different approaches to multilingual Quality Estimation (QE), including using scores from translation models. We show that these outperform singlelanguage models, particularly in less balanced quality label distributions and low-resource settings. In the extreme case of zero-shot QE, we show that it is possible to accurately predict quality for any given new language from models trained on other languages. Our findings indicate that state-of-the-art neural QE models based on powerful pre-trained representations generalise well across languages, making them more applicable in real-world settings.
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Sun, S., Fomicheva, M., Blain, F., Chaudhary, V., El-Kishky, A., Renduchintala, A., Guzman, F. and Specia, L. (2020) An exploratory study on multilingual quality estimation, Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing, pp. 366-377. https://www.aclweb.org/anthology/2020.aacl-main.39
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en
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This is an accepted manuscript of an article published by ACL, available online at: https://www.aclweb.org/anthology/2020.aacl-main.39
The accepted version of the publication may differ from the final published version.