Unverified50% confidenceFactExact time
互信息定义为I(X;Y) = H(X) + H(Y) - H(X,Y)，度量两个变量间的总依赖关系（包括线性和非线性），为零当且仅当两变量统计独立
1
Sources
50%
Confidence
Long-term
Relevance
8/23/2026
First Seen
Sources
Entropic Scree：用信息熵替代方差重构PCA降维方法
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