An Interval Valued Triangular Fuzzy Soft Sets and Its Application in Decision-Making Process Using New Aggregation Operator

Abstract

In decision-making process, aggregation plays a vital role as it is a process of combining various numerical scores with respect to all the criteria using aggregation operators. Hence, in this paper, new aggregation operators have been proposed, namely Interval Valued Triangular Fuzzy Soft Weighted Arithmetic (IVTFSWA) operator and Interval Valued Triangular Fuzzy Soft Weighted Geometric (IVTFSWG) operator for Interval Valued Triangular Fuzzy Soft Numbers (IVTFSNs) using Frank triangular norms and applied them in a decision-making problem to identify the patient who has more illness. This application shows the soundness of the presented operators.