Equivalence of weighted and partial optimality of experimental designs

Samuel Rosa ()
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Samuel Rosa: Comenius University in Bratislava

Metrika: International Journal for Theoretical and Applied Statistics, 2019, vol. 82, issue 6, No 5, 719-732

Abstract: Abstract The recently introduced weighted optimality criteria for experimental designs allow one to place various emphasis on different parameters or functions of parameters of interest. However, various emphasis on parameter functions can also be expressed by considering the well-developed optimality criteria for estimating a parameter system of interest (the partial optimality criteria). We prove that the approaches of weighted optimality and of partial optimality are in fact equivalent for any eigenvalue-based optimality criterion. This opens up the possibility to use the large body of existing theoretical and computational results for the partial optimality to derive theorems and numerical algorithms for the weighted optimality of experimental designs. We demonstrate the applicability of the proven equivalence on a few examples. We also propose a slight generalization of the weighted optimality so that it can represent the experimental objective consisting of any system of linear estimable functions.

Keywords: Optimal design; Weighted optimality; Partial optimality; Treatment contrast (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s00184-019-00706-9

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