zhuyongxin
584639fa2a
Relocate RAG and diagnosis decision/E2E writeups from docs/ root into mvp/engineering so architecture, issues, and engineering narrative stay together. Update indexes and cross-links; leave docs/learning as legacy.
30 lines
723 B
Markdown
30 lines
723 B
Markdown
# Brief: rag-chunk-evidence-identity-dedup
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## 背景
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lookup_knowledge 同文档多 chunk 在后处理与投影阶段被 source 级去重吞掉。Hybrid 多路召回前必须先修证据身份与裁剪契约。
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## 目标
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- chunk 级 evidenceKey 身份
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- 按 evidenceKey 去重 + 每文档 chunk 上限
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- retrieve-k / return-n 分离
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- Projector 保留同 source 不同 chunk
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- 薄 KnowledgeSearchPort，为 Delivery 2 hybrid 铺路
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## 范围
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Delivery 1 only（见 `mvp/engineering/rag/Milvus-Hybrid接入清单.md` §1.1）。
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## 非目标
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hybrid schema、BM25、删 SDK、session dedup、邻块重建、模型 rerank。
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## 分档
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standard
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## 关联 OpenSpec
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`openspec/changes/rag-chunk-evidence-identity-dedup`
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