摘要
在二次损失函数下,研究了线性模型中具有均匀协方差结构的误差方差非负二次估计的可容许性,给出了设计矩阵为1向量时,估计可容许的充要条件。
Under the quadratic loss function, the admissibility of nonnegative quadratic estimate of error variance in a linear model with uniform covariance structure is studied, some sufficient and necessary con- ditions of admissibility of an estimator are gained when the designed matrix is an n×1 vector with only 1 element.
出处
《中国海洋大学学报(自然科学版)》
CAS
CSCD
北大核心
2010年第2期122-126,共5页
Periodical of Ocean University of China
基金
国家高技术研究发展计划项目(2006AA09Z339)资助
关键词
线性模型
均匀协方差结构
误差方差
二次估计
可容许性
linear model
uniform covariance structure
error variance
quadratic estimate
admissibility AMS Subject Classifications: 62C15