摘要
利用多元正态分布以及Fisher信息阵的单调性和可加性,证明了几个常见的矩阵不等式和多参数Cramer-Rao不等式,而证明的过程没有使用矩阵理论。
We use multivariate normal distributions and basic properties of Fisher information matrix such as monotonicity, additivity to prove several common matrix inequalities and multi--parameter Cramer--Rao inequality. No matrix theory is used in the process of proof.
出处
《安庆师范学院学报(自然科学版)》
2010年第1期5-6,共2页
Journal of Anqing Teachers College(Natural Science Edition)
关键词
矩阵不等式
FISHER信息阵
线性模型
多元正态分布
matrix inequality, Fisher information matrix, linear model, multivariate normal distribution