Inadmissability of non-order-preserving orthogonally invariant estimators of the covariance matrix in the case of Stein's loss

Inadmissability of non-order-preserving orthogonally invariant estimators of the covariance matrix in the case of Stein's loss
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Stein 损失情况下协方差矩阵的非保序正交不变估计量的不可接受性

DOI:
10.1016/0047-259x(92)90061-j
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发表时间:
1992
影响因子:
1.6
通讯作者:
A. Takemura
A. Takemura
中科院分区:
数学2区
文献类型:
--
作者:
Y. Sheena;A. Takemura

文献摘要

被引文献

相似文献

对于使用 Stein 损失对 Wishart 分布 Σ 进行正交不变估计,任何不保留样本特征值顺序的估计器都由保留顺序的修改估计器主导。
For orthogonally invariant estimation of Σ of Wishart distribution using Stein's loss, any estimator which does not preserve the order of the sample eigenvalues is dominated by a modified estimator preserving the order.