Author

Boran Wang

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Preprint Aug 2026

Hierarchical Graph Memory for LLM Agents with Path-level Localization and Rewrite

This work proposes HiGram, an evolving hierarchical graph memory framework with path-level localization and rewriting, which organizes the memory into coarse-to-fine architecture composed of upper-level nodes and MemoryUnits, thereby reducing the amount of irrelevant information during retrieval.

Xiawei Yue, Boran Wang, Xiaoqing Zhang et al. · 0 citations