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
复制标题
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
复制
发表时间:
1992
影响因子:
1.6
通讯作者:
A. Takemura
中科院分区:
文献类型:
--
作者:
Y. Sheena;A. Takemura
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.