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Covariance matrix estimation under data-based loss
Statistics & Probability Letters ( IF 0.8 ) Pub Date : 2021-05-26 , DOI: 10.1016/j.spl.2021.109160 Dominique Fourdrinier , Anis M. Haddouche , Fatiha Mezoued
中文翻译:
基于数据的损失下的协方差矩阵估计
更新日期:2021-06-11
Statistics & Probability Letters ( IF 0.8 ) Pub Date : 2021-05-26 , DOI: 10.1016/j.spl.2021.109160 Dominique Fourdrinier , Anis M. Haddouche , Fatiha Mezoued
We consider here the problem of estimating the scale matrix of a multivariate linear regression model when the distribution of the observed matrix belongs to a large class of elliptically symmetric distributions. Any estimator of is assessed through the data-based loss where is the sample covariance matrix and is its Moore–Penrose inverse.
中文翻译:
基于数据的损失下的协方差矩阵估计
我们在这里考虑估计 尺度矩阵 当观测矩阵的分布属于一大类椭圆对称分布时,多元线性回归模型的 任何估算器 的 通过基于数据的损失评估 在哪里 是样本协方差矩阵和 是它的摩尔-彭罗斯逆。