Unverified90% confidenceFactTime unknown
AI Search使用两阶段检索架构：第一阶段基于向量相似度粗筛，第二阶段使用Reranker模型精排
1
Sources
90%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
Cloudflare AI Search实战：零基础搭建智能知识库问答系统
bilibiliCloudflare中国官方
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