Author

Lian Liu

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#artificial intelligence Preprint Oct 2026

HHR: Hierarchical Hash Retrieval for Efficient LLM Generation

H Hierarchical Hash Retrieval (HHR) is proposed, a coarse-to-fine framework that progressively improves retrieval accuracy through Geometry-Aware Key Routing and Learned Hash Projection, substantially improving the fidelity of hash-based sparse attention.

Lian Liu, Tian-Tian Zheng, You Huang et al. · 0 citations