有随机约束的混合回归模型的一类有偏估计

The biased estimators of the mixed model with stochastic restriction

提出了有随机约束的混合回归模型在椭球约束下的一类有偏估计,并给出了在均方误差矩阵和PC准则下此估计类优于一般线性模型在椭球约束下的有偏估计类的条件.

In this paper,we propose the biased estimators for the mixed model with stochastic restriction under ellipsoidal restriction,and obtain the conditions for the superiorities of these biased estimators over the biased estimators of the general model under ellipsoidal restriction in the mean square error matrix and Pitman Closeness criterion senses.