Query Variant Detection Using Retriever as Environment

Minji Seo, Youngwon Lee, Seung-won Hwang, Seoho Song, Hee-Cheol Seo, Young-In Song


Abstract
This paper addresses the challenge of detecting query variants—pairs of queries with identical intents. One application in commercial search engines is reformulating user queries with its variant online. While measuring pairwise query similarity has been an established standard, it often falls short of capturing semantic equivalence when word forms or order differ. We propose leveraging the retrieval as an environment feedback (EF), based on the premise that desirable retrieval outcomes from equivalent queries should be interchangeable. Experimental results on both proprietary and public datasets demonstrate the efficacy of the proposed method, both with and without LLM calls.
Anthology ID:
2025.naacl-industry.54
Volume:
Proceedings of the 2025 Conference of the Nations of the Americas Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 3: Industry Track)
Month:
April
Year:
2025
Address:
Albuquerque, New Mexico
Editors:
Weizhu Chen, Yi Yang, Mohammad Kachuee, Xue-Yong Fu
Venue:
NAACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
662–671
Language:
URL:
https://preview.aclanthology.org/fix-sig-urls/2025.naacl-industry.54/
DOI:
Bibkey:
Cite (ACL):
Minji Seo, Youngwon Lee, Seung-won Hwang, Seoho Song, Hee-Cheol Seo, and Young-In Song. 2025. Query Variant Detection Using Retriever as Environment. In Proceedings of the 2025 Conference of the Nations of the Americas Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 3: Industry Track), pages 662–671, Albuquerque, New Mexico. Association for Computational Linguistics.
Cite (Informal):
Query Variant Detection Using Retriever as Environment (Seo et al., NAACL 2025)
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PDF:
https://preview.aclanthology.org/fix-sig-urls/2025.naacl-industry.54.pdf