A fuzzy solution approach to multi-objective fully triangular fuzzy optimization problem

Iranian Journal of Numerical Analysis and Optimization

مقاله 5، دوره 14، Issue 4 - شماره پیاپی 31، اسفند 2024، صفحه 1106-1139   

نوع مقاله: Research Article

شناسه دیجیتال (DOI): 10.22067/ijnao.2024.87836.1434

نویسندگان

N. Swain؛ S. Maharana؛ S. Nayak^*

Department of Mathematics, School of Applied Sciences, KIIT Deemed to be University, Bhubaneswar, 751024, Odisha, India.

چکیده

Numerous optimization problems comprise uncertain data in practical circumstances and such uncertainty can be suitably addressed using the concept of fuzzy logic. This paper proposes a computationally efficient solution methodology to generate a set of fuzzy non-dominated solutions of a fully fuzzy multi-objective linear programming problem, which incorporates all its parameters and decision variables expressed in form of triangular fuzzy numbers. The fuzzy parameters associated with the objective functions are transformed into interval forms by utilizing the fuzzy-cuts, which subsequently generates the equivalent interval valued objective functions. The concept of centroid of triangular fuzzy numbers derives the deterministic form of the constraints. Furthermore, the scalarization process of weighting sum approach and certain concepts of interval analysis are used to generate the fuzzy non-dominated solutions from which the compromise solution can be determined based on the corresponding real valued expressions of fuzzy optimal objective values resulted due to the ranking function. Three numerical problems and one practical problem are solved for illustration and validation of the proposed approach. The computational results are also discussed as compared to some existing methods. 

کلیدواژه‌ها

Multi-objective optimization؛ Fully fuzzy programming؛ Triangular fuzzy numbers؛ Interval valued functions؛ Weighting sum approach

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