Fuzzy Analytic Hierarchy Process with Interval Type-2 Fuzzy Sets
Journal article, 2014

The membership functions of type-1 fuzzy sets have no uncertainty associated with it. While excessive arithmetic operations are needed with type-2 fuzzy sets with respect to type-1’s, type-2 fuzzy sets generalize type-1 fuzzy sets and systems so that more uncertainty for defining membership functions can be handled. A type-2 fuzzy set lets us incorporate the uncertainty of membership functions into the fuzzy set theory. Some fuzzy multicriteria methods have recently been extended by using type-2 fuzzy sets. Analytic Hierarchy Process (AHP) is a widely used multicriteria method that can take into account various and conflicting criteria at the same time. Our objective is to develop an interval type-2 fuzzy AHP method together with a new ranking method for type-2 fuzzy sets. We apply the proposed method to a supplier selection problem.

Type-2 fuzzy sets Fuzzy AHP Fuzzy numbers Multicriteria Uncertainty

Author

Başar Öztayşi

Istanbul Technical University

Cengiz Kahraman

Istanbul Technical University

İrem Uçal Sarı

Istanbul Technical University

Ebru Turanoglu Bekar

Dokuz Eylul University

Knowledge-Based Systems

0950-7051 (ISSN)

Vol. 59 48-57

Subject Categories

Information Science

Information Systemes, Social aspects

Computer Science

DOI

10.1016/j.knosys.2014.02.001

More information

Latest update

1/10/2023