Verified65% confidenceFactTime unknown
语义相近的文本在向量空间中距离也相近，这是向量检索的数学基础
3
Sources
65%
Confidence
Long-term
Relevance
6/3/2026
First Seen
Sources
RAG系统全流程解析：从向量索引到生产优化
bilibili大模型本地部署
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