an effective solution approach to multi-objective fractional fixed charge problem with fuzzy parameters

A multi-objective fixed charge problem in existence of several fractional objective functions with triangular fuzzy parameters is considered in this study. the problem previously has been tackled only by upmanyu and saxena (2016) with a method containing wrong mathematical concepts (see the commentary of kaur and kumar (2017)). to overcome the shortcomings of the literature, an effective solution approach based on a typical goal programming approach is proposed to solve the problem for obtaining a pareto-optimal solution. the proposed approach considers the shortcomings of the method of upmanyu and saxena (2016) and applies no ranking function of fuzzy numbers. in addition, the goal programming stage considers no preference from decision maker. the computational experiments provided by an example of the literature, prove the effectiveness of the proposed approach.