Unverified50% confidenceFactExact time
DPR的核心创新是用双塔神经网络分别编码问题和文档，使语义相近内容在向量空间中聚拢
1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
零基础理解RAG：检索增强生成原理与应用场景详解
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