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Pesquisa Operacional

versión impresa ISSN 0101-7438


ISHIZAKA, Alessio. Clusters and pivots for evaluating a large numberof alternatives in AHP. Pesqui. Oper. [online]. 2012, vol.32, n.1, pp. 87-102.  Epub 08-Mar-2012. ISSN 0101-7438.

AHP has been successful in many cases but it has a major limitation: a larger number of alternatives requires a high number of judgements in the comparison matrices. In order to reduce this problem,we present a method with clusters and pivots. This method also helps with a further four problems of the Analytic Hierarchy Process. It enlarges the comparison scale, facilitates the construction of a consistent or near consistent matrix, eliminates the problem of the choice of the priorities derivation method and allows the use of incomparable alternatives.

Palabras clave : supplier selection; Analytic Hierarchy Process (AHP); Multicriteria Decision Making (MCDM).

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