Abstract
Let X ={x 1, x 2, ..., x n } be a set of alternatives and a ij a positive number expressing how much the alternative x i is preferred to the alternative x j . Under suitable hypothesis of no indifference and transitivity over the pairwise comparison matrix A=(a ij ), the actual qualitative ranking on the set X is achievable. Then a coherent priority vector is a vector giving a weighted ranking agreeing with the actual ranking and an ordinal evaluation operator is a functional F that, acting on the row vectors \(\underline{a}_{i}\) , translates A in a coherent priority vector. In this paper we focus our attention on the matrix A, looking for conditions ensuring the existence of coherent priority vectors. Then, given a type of matrices, we look for ordinal evaluation operators, including OWA operators, associated to it.
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Basile, L., D’Apuzzo, L. Transitive Matrices, Strict Preference Order and Ordinal Evaluation Operators. Soft Comput 10, 933–940 (2006). https://doi.org/10.1007/s00500-005-0020-z
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DOI: https://doi.org/10.1007/s00500-005-0020-z