RISE: Reasoning Enhancement via Iterative Self-Exploration in Multi-hop Question Answering

Bolei He, Xinran He, Mengke Chen, Xianwei Xue, Ying Zhu, Zhen-Hua Ling


Abstract
Large Language Models (LLMs) excel in many areas but continue to face challenges with complex reasoning tasks, such as Multi-Hop Question Answering (MHQA). MHQA requires integrating evidence from diverse sources while managing intricate logical dependencies, often leads to errors in reasoning. Retrieval-Augmented Generation (RAG), widely employed in MHQA tasks, faces challenges in effectively filtering noisy data and retrieving all necessary evidence, thereby limiting its effectiveness in addressing MHQA challenges. To address these challenges, we propose RISE:Reasoning Enhancement via Iterative Self-Exploration, a novel framework designed to enhance models’ reasoning capability through iterative self-exploration. Specifically, RISE involves three key steps in addressing MHQA tasks: question decomposition, retrieve-then-read, and self-critique. By leveraging continuous self-exploration, RISE identifies accurate reasoning paths, iteratively self-improving the model’s capability to integrate evidence, maintain logical consistency, and enhance performance in MHQA tasks. Extensive experiments on multiple MHQA benchmarks demonstrate that RISE significantly improves reasoning accuracy and task performance.
Anthology ID:
2025.findings-acl.772
Volume:
Findings of the Association for Computational Linguistics: ACL 2025
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Wanxiang Che, Joyce Nabende, Ekaterina Shutova, Mohammad Taher Pilehvar
Venue:
Findings
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Publisher:
Association for Computational Linguistics
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Pages:
14925–14948
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URL:
https://preview.aclanthology.org/display_plenaries/2025.findings-acl.772/
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Cite (ACL):
Bolei He, Xinran He, Mengke Chen, Xianwei Xue, Ying Zhu, and Zhen-Hua Ling. 2025. RISE: Reasoning Enhancement via Iterative Self-Exploration in Multi-hop Question Answering. In Findings of the Association for Computational Linguistics: ACL 2025, pages 14925–14948, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
RISE: Reasoning Enhancement via Iterative Self-Exploration in Multi-hop Question Answering (He et al., Findings 2025)
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https://preview.aclanthology.org/display_plenaries/2025.findings-acl.772.pdf