E-mem: Multi-agent based Episodic Context Reconstruction for LLM Agent Memory

• URL: http://arxiv.org/abs/2601.21714v1
• Date: Thu, 29 Jan 2026 13:42:42 GMT
• Title: E-mem: Multi-agent based Episodic Context Reconstruction for LLM Agent Memory
• Authors: Kaixiang Wang, Yidan Lin, Jiong Lou, Zhaojiacheng Zhou, Bunyod Suvonov, Jie Li,
• Abstract summary: E-mem is a framework shifting from Memory Preprocessing to Episodic Context Reconstruction.<n>E-mem achieves over 54% F1, surpassing the state-of-the-art GAM by 7.75%, while reducing token cost by over 70%.
• Score: 4.8183840404266185
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The evolution of Large Language Model (LLM) agents towards System~2 reasoning, characterized by deliberative, high-precision problem-solving, requires maintaining rigorous logical integrity over extended horizons. However, prevalent memory preprocessing paradigms suffer from destructive de-contextualization. By compressing complex sequential dependencies into pre-defined structures (e.g., embeddings or graphs), these methods sever the contextual integrity essential for deep reasoning. To address this, we propose E-mem, a framework shifting from Memory Preprocessing to Episodic Context Reconstruction. Inspired by biological engrams, E-mem employs a heterogeneous hierarchical architecture where multiple assistant agents maintain uncompressed memory contexts, while a central master agent orchestrates global planning. Unlike passive retrieval, our mechanism empowers assistants to locally reason within activated segments, extracting context-aware evidence before aggregation. Evaluations on the LoCoMo benchmark demonstrate that E-mem achieves over 54\% F1, surpassing the state-of-the-art GAM by 7.75\%, while reducing token cost by over 70\%.

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