نتایج جستجو برای: fuzzy linear programming and fuzzyefficiency

تعداد نتایج: 16931833  

Journal: :مدیریت صنعتی 0
مهناز حسین زاده دکتری مدیریت تحقیق در عملیات، دانشکدة مدیریت دانشگاه تهران، تهران، ایران محمدباقر منهاج استاد دانشکدة مهندسی برق و الکترونیک، دانشگاه امیرکبیر، تهران، ایران عالیه کاظمی استادیار دانشکدة مدیریت دانشگاه تهران، تهران، ایران

[naeini1] in this paper, a new method is proposed to find the fuzzy optimal solution of fuzzy multi-objective linear programming problems (fmolpp) with fuzzy right hand side and fuzzy decision variables. due to the imprecise nature of available resources, determination of a definitive solution to the model seems impossible. therefore, the proposed model is designed in order to make fuzzy decisi...

2009
Clara M. Campos Lourdes Canós María José Canós Vicente Liern José A. Moreno-Pérez Dolores Santos

This paper deals with the competitive location problems using fuzzy sets. The basic notions on fuzzy optimization and linear programming using fuzzy sets are briefly reviewed. The standard leader-follower location problem and its linear mathematical programming formulation are described. The works appeared in the literature concerning the use of fuzzy sets are analyzed. Keywords— Fuzzy Optimiza...

Journal: :International Journal of Mathematics and Mathematical Sciences 2010

Journal: :J. Inf. Sci. Eng. 2008
Feng-Tse Lin

We examine a linear programming problem formulation in which the constraint coefficients are not precisely given in the work. We investigate the possibility of applying GAs to solve this kind of fuzzy linear programming problem without defining membership functions for fuzzy numbers, using the extension principle, interval arithmetic, and α-cut operations for fuzzy computations, and using a pen...

2013
Behrouz Kheirfam José L. Verdegay

Fuzzy Linear Programming models are quite frequent in practice. The dynamic nature of the real problems often requires reoptimize from the optimal solutions found, what may mean a significant consumption of time and funds. In this paper, in order to efficiently solve this problem, first the optimality conditions and the duality results for fully fuzzy linear programming problems (all parameters...

2006
Jin-Shieh Su

Abstract In this paper, we use interval-valued fuzzy numbers to fuzzify the crisp linear programming to three cases. The first case, we use intervalvalued fuzzy numbers to fuzzify the coefficients in the objective function. We get a linear programming in the fuzzy sense. The second case, we use interval-valued fuzzy numbers to fuzzify the coefficients akj in the constraints about xj, j = 1, 2, ...

Journal: :Fuzzy Sets and Systems 2012
Dipti Dubey Suresh Chandra Aparna Mehra

The equivalence between the interval-valued fuzzy set (IVFS) and the intuitionistic fuzzy set (IFS) is exploited to study linear programming problems involving interval uncertainty modeled using IFS. The non-membership of IFS is constructed with three different viewpoints viz., optimistic, pessimistic, and mixed. These constructions along with their indeterminacy factors result in S-shaped memb...

2013
M. Otadi

In this paper, a new method is proposed to find the fuzzy optimal solution of fully fuzzy linear programming (abbreviated to FFLP) problems. Also, we employ linear programming (LP) with equality constraints to find a non-negative fuzzy number vector x̃ which satisfies Ãx̃ = b̃, where à is a fuzzy number matrix. Then we investigate the existence of a positive solution of fully fuzzy linear system (...

Journal: :Journal of Japan Society for Fuzzy Theory and Systems 1999

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