Pairwise Comparison Matrices in Decision Making

Martin Gavalec, Jaroslav Ramík and Karel Zimmermann
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Martin Gavalec: University of Hradec Kralove
Jaroslav Ramík: Silesian University in Opava
Karel Zimmermann: Charles University in Prague

Chapter Chapter 2 in Decision Making and Optimization, 2015, pp 29-90 from Springer

Abstract: Abstract In multicriteria decision making context, a pairwise comparison matrix is a helpful tool to determine the weighted ranking of alternatives or criteria. The entry of the matrix can assume different meanings: it can be a preference ratio (multiplicative case) or a preference difference (additive case), or, it belongs to the unit interval and measures the distance from the indifference that is expressed by 0.5 (fuzzy case). When comparing two elements, the decision maker assigns the value from a scale to any pair of alternatives representing the element of the pairwise preference matrix. Here, we investigate particularly relations between transitivity and consistency of preference matrices being understood differently with respect to the type of preference matrix. By various methods for deriving priorities from various types of preference matrices we obtain the corresponding priority vectors for final ranking of alternatives. The obtained results are also applied to situations where some elements of the fuzzy preference matrix are missing. Finally, a unified framework for pairwise comparison matrices based on abelian linearly ordered groups is presented. Illustrative numerical examples are supplemented.

Keywords: Analytic Hierarchy Process; Consistency Index; Pairwise Comparison Matrix; Priority Vector; Fuzzy Preference Relation (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/978-3-319-08323-0_2

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