Minimax estimation of multivariate normalmean under balanced loss function 1

نویسنده

  • Younshik Chung
چکیده

This paper considers simultaneous estimation of multivariate normal mean vector using Zellner's(1994) balanced loss function when 2 is known and unknown. We show that the usual estimator X is minimax and obtain a class of minimax estimators which have uniformly smaller risk than the usual estimator X. Also, we obtain the proper Bayes estimator relative to balanced loss function and nd the minimax condition of hyperparameter to be minimax.

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تاریخ انتشار 2007