TransBERT: A Framework for Synthetic Translation in Domain-Specific Language Modeling

Julien Knafou, Luc Mottin, Anaïs Mottaz, Alexandre Flament, Patrick Ruch


Abstract
The scarcity of non-English language data in specialized domains significantly limits the development of effective Natural Language Processing (NLP) tools. We present TransBERT, a novel framework for pre-training language models using exclusively synthetically translated text, and introduce TransCorpus, a scalable translation toolkit. Focusing on the life sciences domain in French, our approach demonstrates that state-of-the-art performance on various downstream tasks can be achieved solely by leveraging synthetically translated data. We release the TransCorpus toolkit, the TransCorpus-bio-fr corpus (36.4GB of French life sciences text), TransBERT-bio-fr, its associated pre-trained language model and reproducible code for both pre-training and fine-tuning. Our results highlight the viability of synthetic translation in a high-resource translation direction for building high-quality NLP resources in low-resource language/domain pairs.
Anthology ID:
2025.findings-emnlp.1053
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2025
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Christos Christodoulopoulos, Tanmoy Chakraborty, Carolyn Rose, Violet Peng
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
19338–19354
Language:
URL:
https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.findings-emnlp.1053/
DOI:
10.18653/v1/2025.findings-emnlp.1053
Bibkey:
Cite (ACL):
Julien Knafou, Luc Mottin, Anaïs Mottaz, Alexandre Flament, and Patrick Ruch. 2025. TransBERT: A Framework for Synthetic Translation in Domain-Specific Language Modeling. In Findings of the Association for Computational Linguistics: EMNLP 2025, pages 19338–19354, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
TransBERT: A Framework for Synthetic Translation in Domain-Specific Language Modeling (Knafou et al., Findings 2025)
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PDF:
https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.findings-emnlp.1053.pdf
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