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Information Journal Paper

Title

Exponential membership function and duality gaps for I-fuzzy linear programming problems

Pages

  147-163

Keywords

Intuitionistic fuzzy set (I-fuzzy set) 

Abstract

 Fuzziness is ever presented in real life decision making problems. In this paper, we adapt the pessimistic approach to study a pair of linear primal-dual problem under intuitionistic fuzzy (I-fuzzy) environment and prove certain duality results. We generate the duality results using exponential membership and non-membership functions to represent the decision maker's satisfaction and dissatisfaction level. Further, two numerical examples have been given. In each of these illustrations, varying the values of the shape variables in the exponential membership functions, various nonlinear optimization problems have been constructed, analyzed and solved. The Duality gaps for all these optimization problems have been computed and compared with the duality gap under the linear membership function. We found that these gaps for the I-fuzzy linear primal-dual pair under the exponential membership functions are smaller as compared with the linear membership functions. The main advantage of using the exponential membership function is that it has the exibility of altering the values of the shape parameters (as per the decision-maker's satisfaction). Finally, with the help of a suitable ranking defuzzification function, we have extended our approach to the I-fuzzy linear problem with fuzzy parameters and fuzzy constraints.

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    APA: Copy

    Debnath, I. P., & GUPTA, S.K.. (2019). Exponential membership function and duality gaps for I-fuzzy linear programming problems. IRANIAN JOURNAL OF FUZZY SYSTEMS, 16(2 ), 147-163. SID. https://sid.ir/paper/725433/en

    Vancouver: Copy

    Debnath I. P., GUPTA S.K.. Exponential membership function and duality gaps for I-fuzzy linear programming problems. IRANIAN JOURNAL OF FUZZY SYSTEMS[Internet]. 2019;16(2 ):147-163. Available from: https://sid.ir/paper/725433/en

    IEEE: Copy

    I. P. Debnath, and S.K. GUPTA, “Exponential membership function and duality gaps for I-fuzzy linear programming problems,” IRANIAN JOURNAL OF FUZZY SYSTEMS, vol. 16, no. 2 , pp. 147–163, 2019, [Online]. Available: https://sid.ir/paper/725433/en

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