RAGthoven at SemEval 2025 - Task 2: Enhancing Entity-Aware Machine Translation with Large Language Models, Retrieval Augmented Generation and Function Calling

Demetris Skottis, Gregor Karetka, Marek Suppa


Abstract
This paper presents a system for SemEval 2025 Task 2 on entity-aware machine translation, integrating GPT-4o with Wikidata-based translations, retrieval augmented generation (RAG), and function calling. Implemented in RAGthoven, a lightweight yet powerful toolkit, our approach enriches source sentences with real-time external knowledge to address challenging or culturally specific named entities. Experiments on English-to-ten target languages show notable gains in translation quality, illustrating how LLM-based translation pipelines can leverage knowledge sources with minimal overhead. Its simplicity makes it a strong baseline for future research in entity-focused machine translation.
Anthology ID:
2025.semeval-1.305
Volume:
Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025)
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Sara Rosenthal, Aiala Rosá, Debanjan Ghosh, Marcos Zampieri
Venues:
SemEval | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2342–2351
Language:
URL:
https://preview.aclanthology.org/corrections-2025-08/2025.semeval-1.305/
DOI:
Bibkey:
Cite (ACL):
Demetris Skottis, Gregor Karetka, and Marek Suppa. 2025. RAGthoven at SemEval 2025 - Task 2: Enhancing Entity-Aware Machine Translation with Large Language Models, Retrieval Augmented Generation and Function Calling. In Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025), pages 2342–2351, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
RAGthoven at SemEval 2025 - Task 2: Enhancing Entity-Aware Machine Translation with Large Language Models, Retrieval Augmented Generation and Function Calling (Skottis et al., SemEval 2025)
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PDF:
https://preview.aclanthology.org/corrections-2025-08/2025.semeval-1.305.pdf