98-19

Numerical Methods for Linear Minimax Estimation

by Gaffke, Norbert; Heiligers, Berthold

 

Preprint series: 98-19, Preprints

MSC:
62F10 Point estimation
62J05 Linear regression

 

Abstract: We discuss two numerical approaches to linear minimax estimation in linear models under ellipsoidal parameter restrictions. The first attacks the problem directly, by minimizing the maximum risk among the estimators. The second method is based on the duality between minimax and Bayes estimation, and aims at finding a least favorable prior distribution.

Keywords: Bayes estimation, duality, linear model, L-optimality, mean squared error, minimax estimation, non-smooth optimization, parameter restrictions, p-mean, quasi Newton method


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