Abstract
Let A be a set of actions evaluated by a set of attributes. Two kinds of evaluations will be considered in this paper: determinist or stochastic in relation to each attribute. The Multi-Attribute Stochastic Dominance (MSDr) for a reduced number of attributes will be suggested to model the preferences in this kind of problem. To apply the MSDr the subset R of attributes from which approximation of the global preference is valid should be known. The theory of Rough Sets gives us an answer on this issue allowing us to determine a minimal subset of attributes that enables the same classification of objects as the whole set of attributes. In our approach these objects are pairs of actions. In order to represent preferential information we shall use a pairwise comparison table (PCT). This table is built for subset B⊂ A described by Stochastic Dominance relations for particular attributes and a total order for the decision attribute given by the decision maker (DM). Using a Rough Sets approach for the analysis of the subset of preference relations, a set of decision rules is obtained, and these are applied to a set A\B of potential actions. The Rough Sets approach of looking for the reduction of the set of attributes gives us the possibility of operating on Multi-Attribute Stochastic Dominance for a reduced number of attributes.
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Zaras, K. (2000). Rough Approximation of a Preference Relation by a Multi-Attribute Stochastic Dominance for a Reduced Number of Attributes. In: Haimes, Y.Y., Steuer, R.E. (eds) Research and Practice in Multiple Criteria Decision Making. Lecture Notes in Economics and Mathematical Systems, vol 487. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-57311-8_18
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DOI: https://doi.org/10.1007/978-3-642-57311-8_18
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