Unverified50% confidenceFactExact time
Marchenko-Pastur定律描述了p>>n高维稀疏条件下随机矩阵特征值的分布规律，揭示许多看似显著的主成分可能仅反映噪声结构
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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