The general facility location problem and its variants, including most location-allocation and P-median problems, are known to be NP-hard combinatorial optimization problems. Consequently , there is now a substantial body of literature on heuristic algorithms for a variety of location problems, among which can be found several versions of the well-known simulated annealing algorithm. This paper...

Recent facility location allocation problems are engaged with social, environmental and many other aspects, besides cost objectives.Obtaining a sustainable solution for such problems requires development of new mathematical modeling and optimization algorithms. In this paper, an uncapacitated dynamic facility location-network design problem with random budget constraints is considered. Social i...

This paper presents a multi-objective and multi-service location-allocation model with capacity planning to design a healthcare facilities network through considering a referral system. Therefore, a mixed integer nonlinear programming (MINLP) model containing two objective functions is proposed. The first objective function is  relates to minimization of total opening cost, minimization of tota...

Alleviating human sufferings during and in the aftermath of disasters is one most important goals humanitarian relief logistics. The lack commodities, especially life-saving items, a life-threatening loss to victims must be considered when making emergency supply allocation transportation decisions, even pre-disaster prepositioning phase. This paper proposes scenario-based stochastic program th...

Entitled: Metaheuristics for multiobjective capacitated location allocation on logistics networks and submitted in partial fulfillment of the requirements for the degree of complies with the regulations of the University and meets the accepted standards with respect to originality and quality. ABSTRACT Metaheuristics for multiobjective capacitated location allocation on logistics networks Yongl...