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Finite approximations to coherent choice.

Troffaes, Matthias (2009) 'Finite approximations to coherent choice.', International journal of approximate reasoning., 50 (4). pp. 655-665.

Abstract

This paper studies and bounds the effects of approximating loss functions and credal sets on choice functions, under very weak assumptions. In particular, the credal set is assumed to be neither convex nor closed. The main result is that the effects of approximation can be bounded, although in general, approximation of the credal set may not always be practically possible. In case of pairwise choice, I demonstrate how the situation can be improved by showing that only approximations of the extreme points of the closure of the convex hull of the credal set need to be taken into account, as expected.

Item Type:Article
Keywords:Decision making, E-admissibility, Maximality, Numerical analysis, Lower prevision, Sensitivity analysis.
Full text:PDF - Accepted Version (297Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1016/j.ijar.2008.07.001
Publisher statement:NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Approximate Reasoning. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Approximate Reasoning, 50, 4, 2009, 10.1016/j.ijar.2008.07.001.
Record Created:19 Jun 2009 09:20
Last Modified:17 Oct 2014 09:16

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