EIGENVECTOR METHOD IN MULTICRITERIA OUTRANKING RELATIONS

Most complex decision problems involve conflicts among multiple criter ia and uncertain and imprecise data. The (fuzzy) outranking relation m odel that was introduced by Roy can tackle such complex situations. Th e present paper proposes a new ranking procedure based on the eigenvec tor in multicriteria outranking relations. The properties of the eigen vector method in ordinary outranking relations are investigated. Then, the eigenvector method is compared to that of qualification by severa l examples. Finally, we compare the eigenvector method with the distil lation method in ELECTRE III in fuzzy outranking relations. The result s of the two methods did not exhibit significant differences. The eige nvector method turns out useful, because it can promote a complementar y viewpoint.