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PreQuEL: Quality Estimation of Machine Translation Outputs in Advance

Shachar Don-Yehiya, Leshem Choshen, Omri Abend


Abstract
We present the task of PreQuEL, Pre-(Quality-Estimation) Learning. A PreQuEL system predicts how well a given sentence will be translated, without recourse to the actual translation, thus eschewing unnecessary resource allocation when translation quality is bound to be low. PreQuEL can be defined relative to a given MT system (e.g., some industry service) or generally relative to the state-of-the-art.From a theoretical perspective, PreQuEL places the focus on the source text, tracing properties, possibly linguistic features, that make a sentence harder to machine translate.We develop a baseline model for the task and analyze its performance. We also develop a data augmentation method (from parallel corpora), that improves results substantially. We show that this augmentation method can improve the performance of the Quality-Estimation task as well.We investigate the properties of the input text that our model is sensitive to, by testing it on challenge sets and different languages. We conclude that it is aware of syntactic and semantic distinctions, and correlates and even over-emphasizes the importance of standard NLP features.
Anthology ID:
2022.emnlp-main.767
Volume:
Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates
Editors:
Yoav Goldberg, Zornitsa Kozareva, Yue Zhang
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
11170–11183
Language:
URL:
https://aclanthology.org/2022.emnlp-main.767
DOI:
10.18653/v1/2022.emnlp-main.767
Bibkey:
Cite (ACL):
Shachar Don-Yehiya, Leshem Choshen, and Omri Abend. 2022. PreQuEL: Quality Estimation of Machine Translation Outputs in Advance. In Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, pages 11170–11183, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
Cite (Informal):
PreQuEL: Quality Estimation of Machine Translation Outputs in Advance (Don-Yehiya et al., EMNLP 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.emnlp-main.767.pdf