20260625:很多新内容
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concepts/agent-memory-lifecycle.md
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concepts/agent-memory-lifecycle.md
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title: "Agent 记忆生命周期"
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created: 2026-06-19
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updated: 2026-06-19
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type: concept
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tags: [agent-memory, lifecycle, pipeline, memos]
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sources:
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- https://mp.weixin.qq.com/s/5Wo91nzstNtCIV9chnuQmw
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---
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# Agent 记忆生命周期
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## 五阶段管线
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一个完整的记忆系统可拆解为五个核心环节:
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```
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抽取 → 组织 → 检索 → 更新 → 共享
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↑ |
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└──────────────────────────────┘
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(闭环反馈)
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```
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### 1. 抽取(Extraction)
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- 从对话流、交互轨迹中识别和提取关键信息
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- **关键风险**:记忆是对知识的高度总结,幻觉在此阶段引入后会在后续环节累积
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- MemOS 使用自研记忆原生模型自主决定何时抽取
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### 2. 组织(Organization)
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- 结构化存储、去重、归纳合并
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- [[memory-dedup-pipeline|三级去重漏斗]]:SHA-256 → 向量余弦 → LLM Judge
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- 平均压缩比 75%+
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### 3. 检索(Retrieval)
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- 多路召回、时间衰减、多样性处理
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- 不同于文档检索——记忆检索需考虑时效性、相关性、可信度
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### 4. 更新(Update)
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- 增量合并、矛盾检测
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- 记忆不是只增不减——需要合并重复、解决冲突、过期退役
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### 5. 共享(Sharing)
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- 跨 Agent/用户/会话传递记忆
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- Hub 机制解决知识孤岛和经验蒸发问题
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## 对应关系
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这与 [[agent-skill|Agent Skill]] 的生命周期(Representation → Acquisition → Retrieval → Evolution)形成有趣的平行结构——两者共享"存储→检索→演化"的核心模式,但记忆更侧重事实性上下文,skill 更侧重过程性 know-how。
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## 参考
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- [[agent-memory-system|Agent 记忆系统]]
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- [[layered-memory-architecture|三层记忆架构]]
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- [[memory-dedup-pipeline|记忆去重管线]]
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- [[agent-skill|Agent Skill]]
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