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Xiaoxi Li

Gaoling School of Artificial Intelligence, Renmin University of China, Beijing, China

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Book Open access Jul 2026

HiRA: Decoupling Planning and Execution with Hierarchical Reasoning in Deep Search

Experiments show that HiRA significantly outperforms state-of-the-art RAG and agent-based systems, highlighting the effectiveness of decoupled planning and execution for multi-step information seeking tasks.

Jiajie Jin, Xiaoxi Li, Yuyao Zhang et al. · Annual International ACM SIG... · 0 citations