Uncapacitated plant location-allocation problems with price sensitive stochastic demands
Computers and Operations Research
A dual-based procedure for stochastic facility location
Operations Research
Fuzzy multi-criteria facility location problem
Fuzzy Sets and Systems
A projection method for lp norm location-allocation problems
Mathematical Programming: Series A and B
Fuzzy sets as a basis for a theory of possibility
Fuzzy Sets and Systems
Future Generation Computer Systems
Genetic Algorithms in Search, Optimization and Machine Learning
Genetic Algorithms in Search, Optimization and Machine Learning
Parametric tabu-search for mixed integer programs
Computers and Operations Research - Anniversary focused issue of computers & operations research on tabu search
Fuzzy facility location problem with preference of candidate sites
Fuzzy Sets and Systems
Modeling capacitated location-allocation problem with fuzzy demands
Computers and Industrial Engineering
Stochastic facility location with general long-run costs and convex short-run costs
Computers and Operations Research
Is there a need for fuzzy logic?
Information Sciences: an International Journal
The modes of convergence in the approximation of fuzzy random optimization problems
Soft Computing - A Fusion of Foundations, Methodologies and Applications - Special issue on Uncertainty Analysis and Decision Making; Guest Editors: Yan-Kui Liu, Baoding Liu, Jinwu Gao
Identifying core sets of discriminatory features using particle swarm optimization
Expert Systems with Applications: An International Journal
Uncertainty Theory
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on human computing
A pheromone-rate-based analysis on the convergence time of ACO algorithm
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on cybernetics and cognitive informatics
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
Toward a generalized theory of uncertainty (GTU)--an outline
Information Sciences: an International Journal
Ant system: optimization by a colony of cooperating agents
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
The hyper-cube framework for ant colony optimization
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Expected value of fuzzy variable and fuzzy expected value models
IEEE Transactions on Fuzzy Systems
Convergent results about the use of fuzzy simulation in fuzzy optimization problems
IEEE Transactions on Fuzzy Systems
The Approximation Method for Two-Stage Fuzzy Random Programming With Recourse
IEEE Transactions on Fuzzy Systems
Two-stage fuzzy stochastic programming with Value-at-Risk criteria
Applied Soft Computing
Hi-index | 0.00 |
The objective of this paper is to study facility-location problems in the presence of a hybrid uncertain environment involving both randomness and fuzziness. A two-stage fuzzy-random facility-location model with recourse (FR-FLMR) is developed in which both the demands and costs are assumed to be fuzzy-random variables. The bounds of the optimal objective value of the two-stage FR-FLMR are derived. As, in general, the fuzzy-random parameters of the FR-FLMR can be regarded as continuous fuzzy-random variables with an infinite number of realizations, the computation of the recourse requires solving infinite second-stage programming problems. Owing to this requirement, the recourse function cannot be determined analytically, and, hence, the model cannot benefit from the use of techniques of classical mathematical programming. In order to solve the location problems of this nature, we first develop a technique of fuzzy-random simulation to compute the recourse function. The convergence of such simulation scenarios is discussed. In the sequel, we propose a hybrid mutation-based binary ant-colony optimization (MBACO) approach to the two-stage FR-FLMR, which comprises the fuzzy-random simulation and the simplex algorithm. A numerical experiment illustrates the application of the hybrid MBACO algorithm. The comparison shows that the hybrid MBACO finds better solutions than the one using other discrete metaheuristic algorithms, such as binary particle-swarm optimization, genetic algorithm, and tabu search.