[KongchangAI]
Unverified50% confidenceFactExact time

余弦相似度起源于信息检索领域的向量空间模型(VSM),最早由 Gerard Salton 等人在 1970 年代提出

1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen

Sources

余弦相似度-1代表语义相反?机器学习面试高频陷阱解析

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https://kongchang.com/claim/507861
API
curl https://kongchang.com/api/v1/knowledge/claims/507861
MCP
get_claim(id=507861)