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Unverified50% confidenceFactExact time

James和Stein在1961年证明在估计维度≥3的正态均值向量时,向原点收缩的有偏估计量在MSE意义下严格优于无偏的极大似然估计(Stein悖论)

1
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50%
Confidence
Long-term
Relevance
9/11/2026
First Seen

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