zhuyongxin
376ad0c241
Add configurable hybrid mode on KnowledgeSearchPort that fuses dense unfiltered, dense filtered, and lexical ranks via RRF while preserving dense-compatible threshold scores. Archives Delivery 2 OpenSpec change.
24 lines
580 B
Markdown
24 lines
580 B
Markdown
# Acceptance: rag-hybrid-search-rrf
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## Result
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Hybrid mode implemented on KnowledgeSearchPort:
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- dense unfiltered + dense filtered + lexical rank over union
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- RRF fusion by evidenceKey
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- dense-compatible score preserved for thresholds
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- default mode remains dense
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## Verification
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```text
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mvn -q "-Dtest=RrfFusionTest,VectorKnowledgeSearchAdapterHybridTest,LookupKnowledgeToolTest" test
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```
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Pass.
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## Residual
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- True Milvus BM25/sparse schema + reindex still follow-up
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- Lexical path only ranks dense-recalled candidates (does not expand pure-term misses outside dense topK)
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