Bayesian multivariate normal analysis under the extended reflected normal loss function
Mina Towhidi, Javad Behboodian
Abstract
Mina Towhidi, Javad Behboodian
Abstract
This paper considers the Bayesian analysis of the multivariate normal distribution under a new and bounded loss function, based on a reflection of the multivariate normal density function. The Bayes estimators of the mean vector can be derived for an arbitrary prior distribution of [d]. When the covariance matrix has an inverted Wishart prior density, a Bayes estimator of[d] is obtained under a bounded loss function, based on the entropy loss. Finally the admissibility of all linear estimators c[d]+ d for the mean vector is considered
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This paper considers the Bayesian analysis of the multivariate normal distribution under a new and bounded loss function, based on a reflection of the multivariate normal density function. The Bayes estimators of the mean vector can be derived for an arbitrary prior distribution of [d]. When the covariance matrix has an inverted Wishart prior density, a Bayes estimator of[d] is obtained under a bounded loss function, based on the entropy loss. Finally the admissibility of all linear estimators c[d]+ d for the mean vector is considered
Key concepts: Wishart distribution, Mathematics, Matrix t-distribution, Multivariate normal distribution, Inverse-Wishart distribution, Matrix normal distribution, Normal-Wishart distribution, Estimator