期刊
COMPUTERS & INDUSTRIAL ENGINEERING
卷 107, 期 -, 页码 128-140出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cie.2017.03.002
关键词
Interval fuzzy preference relation; Additive reciprocity; Invariance under permutation; Additive consistency; Constrained interval arithmetic
Various definitions of consistent interval fuzzy preference relations have been proposed in the literature. This paper aims to review the definitions of additive consistency based on the interval extension of Tanino's additive-transitivity property. It is demonstrated that some of the definitions are not invariant under permutation of objects in interval fuzzy preference relations and some of them violate the reciprocity of pairwise comparisons of objects, which is not acceptable. Afterwards, two new definitions of consistency, additive consistency and additive weak consistency, based on a proper interval extension of Tanino's additive-transitivity property are proposed. Both definitions are invariant under permutation of objects and do not violate the additive reciprocity of pairwise comparisons in interval fuzzy preference relations. Further, useful tools for verifying the consistency are given, and some interesting properties of both additively consistent and additively weakly consistent interval fuzzy preference relations are demonstrated. The new definitions of consistency are compared with the reviewed definitions on several illustrative examples and on a real-life decision-making problem. (C) 2017 Elsevier Ltd. All rights reserved.
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