Unverified50% confidenceFactExact time
ChromaDB检索时采用近似最近邻（ANN）算法，常见实现包括HNSW算法
1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
从零构建离线RAG应用：PDF文档本地问答完整指南
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