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title: "Atlas Memory System"
created: 2026-06-24
updated: 2026-06-24
type: concept
tags: ["agent-memory", "elasticsearch", "architecture", "hybrid-retrieval"]
sources:
- "[[atlas-agent-memory-architecture-2026]]"
---
# Atlas Memory System
Atlasnoamschwartz/atlas-memory-demo是 Agent 记忆系统的工程实践架构核心理念Agent 记忆不是 KV 存储问题,而是多索引信息检索问题。
## 四索引架构
- **episodic**:原始消息 + 时间戳每回合写入timestamp 衰减
- **semantic**提炼后稳定事实consolidation 写入last_used_at 衰减use_count boost
- **procedural**多步操作流程衰减豁免1.0success/failure 计数器
- **catalog**:公共共享知识,无 user_id所有用户可见
## 检索管线
Verbatim Pre-Recall → BM25 + Dense 并行 → RRF 融合 → Cross-encoder 重排序
## 关键指标
R@10=0.89168 QA, 3 persona, ~250 docs/userCI gate: R@10≥0.85。
## 扩展:五类记忆模型
Atlas 的三索引覆盖了 sz 五类记忆模型中的第 1 类catalog和第 4 类episodic + semantic但第 5 类(计划/想法/洞察)需要一个额外的 [[prospective-memory-index|前瞻记忆索引]] ——不以时间为主导衰减信号,以语义关联为检索驱动力。详见 [[agent-memory-five-category-model]]。
## 参考
- [[atlas-agent-memory-architecture-2026]]
- [[agent-memory-taxonomy]]
- [[agent-memory-five-category-model]]
- [[prospective-memory-index]]
- [[hybrid-recall-pipeline]]
- [[memory-consolidation]]
- [[soft-supersession]]