Seyed Habib A. Rahmati

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In this paper, a novel multi-objective location model within multi-server queuing framework is proposed, in which facilities behave as M/M/m queues. In the developed model of the problem, the constraints of selecting the nearest-facility along with the service level restriction are considered to bring the model closer to reality. Three objective functions(More)
Keywords: Supply chain network design (SCND) Multi-objective biogeography based optimization (MOBBO) Multi-objective simulated annealing (MOSA) Non-dominated sorting genetic algorithm (NSGA-II) Taguchi method VIKOR a b s t r a c t Efficient management of supply chain (SC) requires systematic considerations of miscellaneous issues in its comprehensive(More)
A novel bi-objective multi-server location-allocation (LA) model is developed in this paper, in which the facilities are modeled as an M/M/m queuing system. Further, capacity and budget limitations are provided to make the LA problem more realistic. The two objective functions include (1) minimizing aggregate waiting times and (2) minimizing the maximum(More)
This research investigates a practical bi-objective model for the facility location–allocation (BOFLA) problem with immobile servers and stochastic demand within the M/M/1/K queue system. The first goal of the research is to develop a mathematical model in which customers and service providers are considered as perspectives. The objectives of the developed(More)
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