
Memora:平衡抽象与特异性,为人工智能代理记忆系统带来新突破
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发布于 2026 年 6 月 29 日
作者:[张旭超 ](https://www.microsoft.com/en-us/research/people/xuchaozhang/),首席研究经理;[夏茉莉 ](https://www.microsoft.com/en-us/research/people/mollyxia/),高级研究员;[马尤克·达斯 ](https://www.microsoft.com/en-us/research/people/mayukhdas/),高级研究员;[安森·巴斯托斯 ](https://www.microsoft.com/en-us/research/people/ansonbastos/),高级研究员;[王汝佳 ](https://www.microsoft.com/en-us/research/people/rujiawang/),首席研究产品经理;[切坦·班萨尔 ](https://www.microsoft.com/en-us/research/people/chetanb/),高级首席研究经理;[萨拉万·拉杰莫汉 ](https://www.microsoft.com/en-us/research/people/saravar/),人工智能与应用研究副总裁兼杰出工程师
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概览
如今的人工智能代理存在记忆短板,无法记住过去交互内容,只能反复获取或从外部源检索信息。随着任务变长变复杂,这种方式效率愈发低下。为提升代理能力,急需更高效的信息长期保留和访问方法。
**Memora** 作为可扩展记忆系统,通过解耦存储内容与检索方式,平衡抽象性和特异性,显著提升代理在长期任务中的生产力。它在 LoCoMo 和 LongMemEval 上创造新技术水平,使用上下文令牌最多减少 98% 的情况下,性能超越 Mem0、RAG 和全上下文推理。
[Memora 论文(在新标签页打开)](https://arxiv.org/abs/2602.03315) 已在 2026 年的 ICML 会议上发表。Memora 代码可在 [(在新标签页打开)](https://github.com/microsoft/Memora) 查看。
想象一个职场人工智能助手参与数月项目,在数周对话中,你分享项目限制条件、确定里程碑、修改截止日期、了解利益相关者偏好。之后让它起草项目更新,它应记住决策过程。但如今人工智能代理表现不佳,现代大语言模型虽推理能力强,却无状态,会话从头开始,长对话迫使重读历史记录,新信息存储方式要么碎片化嘈杂,要么模糊丢失细节。随着人工智能用于长期任务,缺乏原则性记忆系统成关键瓶颈。
越来越多研究填补这一空白,如 Mem0 提取原子事实,检索增强(RAG)方法索引文本片段,基于图的记忆系统(如 Zep 和 GraphRAG)构建实体关系结构。但这些设计都要在特异性和抽象性之间权衡,而 Memora 旨在让代理兼具两者能力。
什么是 Memora
[**Memora**](https://www.microsoft.com/en-us/research/publication/memora-a-harmonic-memory-representation-balancing-abstraction-and-specificity/) 是为长期人工智能代理设计的智能记忆框架。其核心是将存储内容与检索方式解耦,记忆内容可丰富有表现力,独立轻量级“结构”层负责索引和检索。这种设计使记忆系统可扩展,整合相关信息为稳定单元,呈现细粒度细节,让代理无需重读所有内容浏览历史记录。在标准长对话基准测试中,Memora 创造性能记录,与完整历史记录放入上下文相比,最多减少 98% 的令牌使用量。
为何这很困难:抽象性与特异性的矛盾
现有记忆系统走向极端。**内容碎片化系统**(如 RAG 和 Mem0)直接嵌入提取的事实或文本片段,保留细节但条目脆弱孤立,失去叙事连贯性。**粗粒度抽象系统**将经验压缩为紧凑摘要,效率高但摘要过程去除有用的限制条件、边缘情况和数值细节。基于图的系统虽添加结构,但仍依赖内容检索,且需严格本体论,通用性差。这些方法无法解决 **抽象性**(保持记忆高效)和 **特异性**(使记忆实用)的根本矛盾。
图 1:Memora 架构概述。
Memora 的工作原理
Memora 以和谐组织方式解决矛盾。每个记忆条目有两部分:一个 **主要抽象**,即 6 - 8 个单词的简短短语,概括记忆核心内容;一个 **记忆值**,保存丰富内容。关键是只有主要抽象部分用于相似度搜索,记忆值不通过自身内容直接检索。这意味着新信息会合并到同一主要抽象下的现有记忆条目,而非碎片化形成重复条目。除主要抽象,提示锚点是从每个记忆值中提取的简短、上下文感知标签,为记忆提供替代访问路径,类似灵活自然生成的元数据。
举个例子,用户说“戴夫和莎拉同意将原型推迟到 4 月 1 日,试点推迟到 5 月 2 日,最小可行产品(MVP)推迟到 5 月 30 日。”知识图谱系统需预定义实体类型和关系模式,新关系类型还需扩展模式。而在 Memora 中,主要抽象“戴夫和莎拉同意更新猎户座项目时间表”是标准访问点,“戴夫更新猎户座项目”“猎户座项目原型时间表”和“猎户座项目试点时间表”等提示锚点提供替代检索路径,且无需依赖本体论。之后关于戴夫贡献、原型或试点时间的查询,可通过不同提示锚点指向同一底层记忆,完整细节保留在记忆值中。
在此基础上,Memora 引入 **策略引导的检索器**,将记忆访问视为主动推理过程。策略检索器不一次性返回前 k 个语义相似项目,而是迭代优化查询,通过提示锚点扩展找到相关但不相似的记忆,决定何时停止检索。这使代理能访问纯语义搜索遗漏的相关非局部上下文,如同人类回忆事件追踪多跳依赖关系。检索策略可通过大语言模型手动提示,也可通过强化学习提炼成小模型。
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研究结果
图 2:Memora 在 LoCoMo 数据集上的性能表现。
在 LoCoMo(对话平均 600 轮)和 LongMemEval(上下文 115,000 个令牌)两个长上下文基准测试中,Memora 创造新技术水平。在 LoCoMo 上大语言模型评判准确率达 86.3%,在 LongMemEval 上达 87.4%,超越 RAG、Mem0、Nemori、Zep、LangMem 和全上下文推理。多跳推理方面,差距明显,Memora 通过提示锚点遍历的能力发挥重要作用。效率上也很出色,与 Mem0 相比,每次对话存储记忆条目约减少一半(344 个 vs. 651 个),与全上下文推理相比,令牌消耗最多减少 98%。读取和存储内容少,却能得到更好答案。
未来展望
Memora 的设计意义不止于基准测试性能。这项工作迈向能与用户长期协作、积累组织知识的人工智能代理,而非仅在单个会话内发挥作用。基于此,正在探索几个互补研究方向。MemLoop 研究记忆系统从检索和任务失败中学习,将错误归因于记忆流程特定阶段并自我改进。延迟记忆(Deferred Memory)研究何时推迟记忆构建,等有足够上下文、证据或未来效用,而非过早确定存储内容。群体记忆(Group Memory)研究团队和代理间共享知识,同时保留来源、访问边界、所有权和敏感上下文。随论文发布代码,邀请社区开发,探索人工智能代理不再无状态时的新功能。
致谢
感谢尚塔努·迪克西特(研究助理)、帕拉马古鲁·哈里穆鲁根(研究助理)、[王汝佳](https://www.microsoft.com/en-us/research/people/rujiawang/)、[维克多·吕勒](https://www.microsoft.com/en-us/research/people/virueh/) 和 [罗伯特·西姆](https://www.microsoft.com/en-us/research/people/rsim/) 对该项目的贡献。
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相关出版物
[Memora:一种平衡抽象性与特异性的和谐记忆表示法 ](https://www.microsoft.com/en-us/research/publication/memora-a-harmonic-memory-representation-balancing-abstraction-and-specificity/)
认识作者

张旭超
首席研究经理
[了解更多](https://www.microsoft.com/en-us/research/people/xuchaozhang/)

夏茉莉
高级研究员
[了解更多](https://www.microsoft.com/en-us/research/people/mollyxia/)

马尤克·达斯
高级研究员
[了解更多](https://www.microsoft.com/en-us/research/people/mayukhdas/)

安森·巴斯托斯
高级研究员
[了解更多](https://www.microsoft.com/en-us/research/people/ansonbastos/)

王汝佳
首席研究产品经理
[了解更多](https://www.microsoft.com/en-us/research/people/rujiawang/)
![]()
切坦·班萨尔
高级首席研究经理
[了解更多](https://www.microsoft.com/en-us/research/people/chetanb/)

萨拉万·拉杰莫汉
人工智能与应用研究副总裁兼杰出工程师
[了解更多](https://www.microsoft.com/en-us/research/people/saravar/)
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