TOPSIS for Multi Criteria Decision Making in Intuitionistic Fuzzy Environment

Abstract

This paper is based on intuitionistic fuzzy sets, we introduce an extension of fuzzy TOPSIS for multi criteria decision making problem in intuitionistic fuzzy environment. Intuitionistic fuzzy sets are more suitable to deal with uncertainty than other generalized forms of fuzzy sets. The rating of each alternative and the weight of each criterion are expressed in intuitionistic fuzzy number. The normalized intuitionistic fuzzy number is calculated by using the concept of. Ranking function is used for determining the positive ideal solution and negative ideal solution. For application and verification, a numerical example is discussed at the end of this paper and compare with existing method.