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Paper Information

Journal:   MATHEMATICAL SCIENCES   December 2018 , Volume 12 , Number 4; Page(s) 263 To 275.
 
Paper: 

GRA method based on spherical linguistic fuzzy Choquet integral environment and its application in multi‑ attribute decision‑ making problems

 
 
Author(s):  Ashraf Shahzaib*, Abdullah Saleem, Mahmood Tahir
 
* Department of Mathematics, Abdul Wali Khan University, Mardan, Pakistan
 
Abstract: 
The key objective of the proposed work in this paper is to introduce a new version of picture linguistic fuzzy set, so-called spherical linguistic fuzzy sets. The novel concept of spherical linguistic fuzzy set consists of linguistic term, positive, neutral and negative membership degrees which satisfies the conditions that the square sum of its membership degrees is less than or equal to 1. In this paper, we investigate the basic operations of spherical linguistic fuzzy sets and discuss some related results. We extend operational laws of aggregation operators and propose spherical linguistic fuzzy Choquet integral weighted averaging (SLFCIWA) operator based on spherical fuzzy numbers. Further, the proposed SLFCIWA operator of spherical fuzzy number is applied to multi-attribute group decision-making problems. Also, we propose the GRA method to aggregate the spherical fuzzy information. To implement the proposed models, we provide some numerical applications of group decision-making problems. Also compared with the previous model, we conclude that the proposed technique is more effective and reliable.
 
Keyword(s): Choquet integral,Spherical linguistic fuzzy Choquet integral weighted averaging (SLFCIWA) operator,GRA method
 
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