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Mathematical Methods of Operations Research

, Volume 64, Issue 2, pp 271–284 | Cite as

Inferring Efficient Weights from Pairwise Comparison Matrices

  • R. Blanquero
  • E. Carrizosa
  • E. CondeEmail author
Original Article

Abstract

Several multi-criteria-decision-making methodologies assume the existence of weights associated with the different criteria, reflecting their relative importance.One of the most popular ways to infer such weights is the analytic hierarchy process, which constructs first a matrix of pairwise comparisons, from which weights are derived following one out of many existing procedures, such as the eigenvector method or the least (logarithmic) squares. Since different procedures yield different results (weights) we pose the problem of describing the set of weights obtained by “sensible” methods: those which are efficient for the (vector-) optimization problem of simultaneous minimization of discrepancies. A characterization of the set of efficient solutions is given, which enables us to assert that the least-logarithmic-squares solution is always efficient, whereas the (widely used) eigenvector solution is not, in some cases, efficient, thus its use in practice may be questionable.

Keywords

Decision analysis Multi-objective Optimization Fractional programming 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Facultad de MatemáticasUniversidad de SevillaSevilleSpain

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