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arXiv · 2508.17330

Omne-R1: Learning to Reason with Memory for Multi-hop Question Answering

Boyuan Liu·Feng Ji·Jiayan Nan·Han Zhao·Weiling Chen·Shihao Xu·Xing Zhou
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Abstract

This paper introduces Omne-R1, a novel approach designed to enhance multi-hop question answering capabilities on schema-free knowledge graphs by integrating advanced reasoning models. Our method employs a multi-stage training workflow, including two reinforcement learning phases and one supervised fine-tuning phase. We address the challenge of limited suitable knowledge graphs and QA data by constructing domain-independent knowledge graphs and auto-generating QA pairs. Experimental results show significant improvements in answering multi-hop questions, with notable performance gains on more complex 3+ hop questions. Our proposed training framework demonstrates strong generalization abilities across diverse knowledge domains.

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Boyuan Liu, Feng Ji, Jiayan Nan, Han Zhao, Weiling Chen, Shihao Xu, Xing Zhou. 2025-08-24. Omne-R1: Learning to Reason with Memory for Multi-hop Question Answering. https://arxiv.org/abs/2508.17330

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