NRC Systems for the WMT2025-LRSL Shared Task

Samuel Larkin, Chi-Kiu Lo, Rebecca Knowles


Abstract
We describe the NRC team systems for the WMT25 Shared Tasks on Large Language Models (LLMs) with Limited Resources for Slavic Languages. We participate in the Lower Sorbian and Upper Sorbian Machine Translation and Question Answering tasks. On the machine translation tasks, our primary focus, our systems rank first according to the automatic MT evaluation metric (chrF). Our systems underperform on the QA tasks.
Anthology ID:
2025.wmt-1.87
Volume:
Proceedings of the Tenth Conference on Machine Translation
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Barry Haddow, Tom Kocmi, Philipp Koehn, Christof Monz
Venue:
WMT
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1133–1142
Language:
URL:
https://preview.aclanthology.org/ingest-emnlp/2025.wmt-1.87/
DOI:
Bibkey:
Cite (ACL):
Samuel Larkin, Chi-Kiu Lo, and Rebecca Knowles. 2025. NRC Systems for the WMT2025-LRSL Shared Task. In Proceedings of the Tenth Conference on Machine Translation, pages 1133–1142, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
NRC Systems for the WMT2025-LRSL Shared Task (Larkin et al., WMT 2025)
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PDF:
https://preview.aclanthology.org/ingest-emnlp/2025.wmt-1.87.pdf