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Value differences using second-order distributions
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DOI：10.1016/j.ijar.2004.04.002.png)
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Most decision models for handling vague and imprecise information are unnecessarily restrictive since they do not admit for discrimination between different beliefs in different values. This is true for classical utility theory as well as for the various interval methods that have prevailed. To allow for more refined estimates, we suggest a framework designed for evaluating decision situations considering beliefs in sets of epistemically possible utility and probability functions, as well as relations between them. The various beliefs are expressed using different kinds of belief distributions. We show that the use of such distributions allows for representation principles not requiring too hard data aggregation, but still admitting efficient evaluation of decision situations. (C) 2004 Elsevier Inc. All rights reserved.
Keyword:
decision analysis
decision theory
utility theory
uncertain reasoning
imprecise probabilities
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