Ehime-U System with Judge and Refinement, Specialized Prompting, and Few-shot for the Patent Claim Translation Task at WAT 2025

Taishi Edamatsu, Isao Goto, Takashi Ninomiya


Abstract
The Ehime University team participated inthe Japanese-to-English Patent Claim Trans-lation Task at WAT 2025. We experimentedwith (i) Judge and Refinement, (ii) SpecializedPrompting, and (iii) Few-Shot approaches, us-ing GPT-5 as the underlying LLM. Evaluationbased on the LLM-as-a-Judge framework con-firmed improvements for (i), while (ii) and (iii)showed no significant effects.
Anthology ID:
2025.wat-1.2
Volume:
Proceedings of the Twelfth Workshop on Asian Translation (WAT 2025)
Month:
December
Year:
2025
Address:
Mumbai, India
Editors:
Toshiaki Nakazawa, Isao Goto
Venues:
WAT | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
16–29
Language:
URL:
https://preview.aclanthology.org/ingest-ijcnlp-aacl/2025.wat-1.2/
DOI:
Bibkey:
Cite (ACL):
Taishi Edamatsu, Isao Goto, and Takashi Ninomiya. 2025. Ehime-U System with Judge and Refinement, Specialized Prompting, and Few-shot for the Patent Claim Translation Task at WAT 2025. In Proceedings of the Twelfth Workshop on Asian Translation (WAT 2025), pages 16–29, Mumbai, India. Association for Computational Linguistics.
Cite (Informal):
Ehime-U System with Judge and Refinement, Specialized Prompting, and Few-shot for the Patent Claim Translation Task at WAT 2025 (Edamatsu et al., WAT 2025)
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PDF:
https://preview.aclanthology.org/ingest-ijcnlp-aacl/2025.wat-1.2.pdf