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TOPSIS approach to linear fractional bi-level MODM problem based on fuzzy goal programming

机译:基于模糊目标规划的TOpsIs逼近线性分数双层mODm问题

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摘要

The objective of this paper is to present a technique for order preference by similarity to ideal solution (TOPSIS) algorithm to linear fractional bi-level multiobjective decision-making problem. TOPSIS is used to yield most appropriate alternative from a finite set of alternatives based upon simultaneous shortest distance from positive ideal solution (PIS) and furthest distance from negative ideal solution (NIS). In the proposed approach, first, the PIS and NIS for both levels are determined and the membership functions of distance functions from PIS and NIS of both levels are formulated. Linearization technique is used in order to transform the nonlinear membership functions into equivalent linear membership functions and then normalize them. A possible relaxation on decision for both levels is considered for avoiding decision deadlock. Then fuzzy goal programming models are developed to achieve compromise solution of the problem by minimizing the negative deviational variables. Distance function is used to identify the optimal compromise solution. The paper presents a hybrid model of TOPSIS and fuzzy goal programming. An illustrative numerical example is solved to clarify the proposed approach. Finally, to demonstrate the efficiency of the proposed approach, the obtained solution is compared with the solution derived from existing methods in the literature.
机译:本文的目的是通过类似于线性分数双水平多目标决策问题的理想解决方案(TOPSIS)算法,提出一种顺序偏好技术。基于距正理想解(PIS)的最短距离和距负理想解(NIS)的最远距离,TOPSIS用于从有限的一组替代中产生最合适的替代。在提出的方法中,首先,确定两个级别的PIS和NIS,并制定两个级别的PIS和NIS的距离函数的隶属函数。使用线性化技术是为了将非线性隶属函数转换为等效的线性隶属函数,然后对其进行归一化。为了避免决策僵局,考虑了两个级别的决策可能的放松。然后开发模糊目标规划模型,以通过最小化负偏差变量来实现问题的折衷解决方案。距离函数用于确定最佳折衷解决方案。本文提出了TOPSIS和模糊目标规划的混合模型。解决了一个数值示例,以阐明所提出的方法。最后,为了证明所提方法的有效性,将获得的解决方案与文献中现有方法得出的解决方案进行了比较。

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