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Yuhao Zhou

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#artificial intelligence Preprint Oct 2026

QREF: Improving DeepSearch Agents by Aligning Search with Reasoning via Query Refinement and Evidence Filtering

QREF, a plug-and-play Query Refiner and Evidence Filter that rewrites search queries according to the current reasoning intent while ensuring complementary coverage across each search batch, improves the performance of DeepSearch agents across four challenging benchmarks.

Yu-Jian Chen, Yu-Hui Wang, Jun-Zhe Wang et al. · 0 citations
Preprint Aug 2026

CAFE: Self-Improving Search Agents Need Co-Evolving Feedback

CAFE (Coupled Agent--Feedback Evolution), a framework in which a shared-parameter model alternates between search-agent and critic roles, is introduced, suggesting that a self-improving search agent needs feedback that co-evolves with the policy it guides.

Bo-Yang Liu, Sen-Jie Jin, Pei-Xin Wang et al. · 2 citations

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