On accuracy function and distance measures of interval-valued Pythagorean fuzzy sets with application to decision making

Document Type : Article

Authors

1 SRM Institute of Science and Technology, Delhi-NCR Campus, Ghaziabad (UP), India

2 Jaypee University of Information Technology, Waknaghat, Solan(HP), India

3 CMR College of Engineering & Technology, Kandlakoya, Hyderabad (TS), India

Abstract

The notion of interval-valued Pythagorean fuzzy sets permits four important parameters, i.e., membership degree, non-membership degree, and a pair of values strength of commitment and direction of commitment, to a given set to have an interval value in dealing with imprecise information. In the present communication, a new accuracy function is being provided to overcome the shortcomings of the existing score and available accuracy functions for interval-valued Pythagorean fuzzy sets. The validity of the proposed accuracy function has been discussed in detail through the illustrative examples. Further, a new interval-valued Pythagorean fuzzy $p$-distance measure for interval-valued Pythagorean fuzzy numbers has been proposed and used in context with the existing weighted averaging operators. Finally, in view of the proposed accuracy function, distance measure and weighted averaging operators, a numerical example of multi-criteria decision-making problem has been solved to validate the proposed methodology.

Keywords

Main Subjects


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