GenAIus at SemEval-2026 Task 8: Beyond Retrieval with Relevance-Aware RAG for Faithful Multi-Turn Generation

Suveyda Yeniterzi, Reyyan Yeniterzi


Abstract
This paper describes our submission to SemEval-2026 Task 8 on multi-turn retrieval-augmented generation (RAG). We propose a hybrid multi-stage pipeline that combines high-recall lexical retrieval, dual-embedding dense re-ranking with reciprocal rank fusion, LLM-based relevance judging, and strictly constrained evidence-grounded generation. Our design emphasizes robustness and faithfulness across the full retrieval-to-generation pipeline. Our results suggest that relevance-aware filtering and constrained generation are important for improving faithfulness and overall RAG performance.
Anthology ID:
2026.semeval-1.328
Volume:
Proceedings of the 20th International Workshop on Semantic Evaluation (2026)
Month:
July
Year:
2026
Address:
San Diego, California, USA
Editors:
Ekaterina Kochmar, Debanjan Ghosh, Kai North, Mamoru Komachi
Venues:
SemEval | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2603–2610
Language:
URL:
https://aclanthology.org/2026.semeval-1.328/
DOI:
Bibkey:
Cite (ACL):
Suveyda Yeniterzi and Reyyan Yeniterzi. 2026. GenAIus at SemEval-2026 Task 8: Beyond Retrieval with Relevance-Aware RAG for Faithful Multi-Turn Generation. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 2603–2610, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):
GenAIus at SemEval-2026 Task 8: Beyond Retrieval with Relevance-Aware RAG for Faithful Multi-Turn Generation (Yeniterzi & Yeniterzi, SemEval 2026)
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PDF:
https://aclanthology.org/2026.semeval-1.328.pdf