EdgeMem：基于证据保留多锚点超图的无LLM智能体记忆构建与检索
EdgeMem: LLM-Free Agent Memory Construction and Retrieval via Evidence-Preserving Multi-Anchor Hypergraph
- The Hong Kong Polytechnic University（香港理工大学）
- JIUTIAN Research, China Mobile（中国移动九天研究院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
EdgeMem通过保留原始交互并利用多锚点超图组织证据，实现无生成式LLM调用的高效智能体记忆构建与检索，在LoCoMo上取得最优严格评判分数。
AI中文摘要：
智能体记忆使LLM智能体在回答新查询时能够利用早期交互。现有方法通常将交互历史压缩为摘要或其他由LLM生成的表示。重复生成会增加成本，并可能在系统知道未来查询需要什么之前丢弃包含答案的细节。我们提出EdgeMem，一种基于简单原则构建的智能体记忆方法：保留原始交互轮次，并通过互补的内容、时间和情节线索对其进行组织。EdgeMem通过轻量级本地处理构建的多锚点超图实现这一原则。检索直接返回源证据，并将LLM的使用保留给最终答案生成，将多会话历史的结构化访问与原始对话的忠实保留相结合。在LoCoMo和LongMemEval-S上的实验显示了强大的检索和基于记忆的问答性能；在LoCoMo上，EdgeMem在共享提示下七个复现系统中获得了最高的严格评判分数（61.01对比58.70），而构建和检索不需要生成式LLM调用。总体而言，EdgeMem表明，保留和组织源证据为智能体记忆提供了有效且高效的基础，而无需生成式记忆管理。
英文摘要：
Agent memory allows LLM agents to use earlier interactions when answering new queries. Existing methods often compress interaction histories into summaries or other LLM-generated representations. Repeated generation adds cost and can discard answer-bearing details before the system knows what a future query will require. We propose EdgeMem, an agent-memory method built around a simple principle: preserve original interaction turns and organize them through complementary content, temporal, and episodic cues. EdgeMem realizes this principle with a multi-anchor hypergraph constructed by lightweight local processing. Retrieval directly returns source evidence and reserves LLM use for final answer generation, combining structured access to multi-session histories with faithful retention of the original conversation. Experiments on LoCoMo and LongMemEval-S show strong retrieval and memory-grounded question answering; on LoCoMo, EdgeMem achieves the highest strict-judge score among seven reproduced systems under a shared prompt (61.01 versus 58.70), while construction and retrieval require no generative-LLM calls. Overall, EdgeMem shows that preserving and organizing source evidence provides an effective and efficient foundation for agent memory without generative memory management.
