摘要
考虑了线性回归模型中,在Fisherian和Mahalanobis损失函数下,几乎无偏刘估计对于最小二乘估计的不可容许性;结论表明:几乎无偏刘估计在Mahalanobis损失函数下是不可容的;最后进行了数值模拟来表明结果.
This paper considers the admissibility of the almost unbiased Liu estimator to the ordinary least squares estimator of linear regression model in the Fisherian and Mahalanobis loss functions. The results show that the almost unbiased Liu estimator is inadmissible under Mahalanobis loss function. Finally,a simulation study is given to show the theoretical results.
出处
《重庆工商大学学报(自然科学版)》
2015年第9期26-30,共5页
Journal of Chongqing Technology and Business University:Natural Science Edition