نتایج جستجو برای: objective hub covering problem

تعداد نتایج: 1435347  

The goals of hub location problems are finding the location of hub facilities and determining the allocation of non-hub nodes to these located hubs. In this work, we discuss the multi-modal single allocation capacitated p-hub covering problem over fully interconnected hub networks. Therefore, we provide a formulation to this end. The purpose of our model is to find the location of hubs and the ...

In this paper, a hub covering location problem is considered. Hubs, which are the most congested part of a network, are modeled as M/M/C queuing system and located in placeswhere the entrance flows are more than a predetermined value.A fuzzy constraint is considered in order to limit the transportation time between all origin-destination pairs in the network.On modeling, a nonlinear mathematica...

ژورنال: :چشم انداز مدیریت صنعتی 0
احسان نیکبخش دانشگاه تربیت مدرس سید حسامالدین ذگری دانشگاه تربیت مدرس

چکیده      شبکه های هاب یکی از انواع مهم شبکه های حمل ونقل هستند که در زمینه های مختلفی مانند حمل ونقل هوایی، پست و مخابرات کاربرد دارند. از ویژگی های مهم این شبکه ها، امکان وقوع اختلال در عملکرد آن ها به دلایلی ازقبیل ازکار افتادن تسهیل های هاب یا عدم دسترسی به یال های ارتباطی است. در این مطالعه، مسئله مکان یابی یال هاب پوششی با تخصیص چندگانه، تحت شرایط اختلال یال های هاب بررسی می شود. برای ای...

Journal: :Journal of the Operational Research Society 2003

Journal: :Computers & Operations Research 2012

Journal: :IJMHeur 2012
Mohamad Saeed Jabalameli Farnaz Barzinpour Ali Saboury Nader Ghaffari-Nasab

Abstract: Hub location problem is one of the most important problems in the areas of logistics and telecommunication network design. In this paper, we address the single allocation maximal covering hub location problem in which the objective is to maximise the amount of covered flows associated with origin-destination pairs in a hub-and-spoke network using a fixed number of hub facilities. Two ...

Ahmad Sadegheih Amir Ebrahimi Zade Mohammad Mehdi Lotfi

Hubs are centers for collection, rearrangement, and redistribution of commodities in transportation networks. In this paper, non-linear multi-objective formulations for single and multiple allocation hub maximal covering problems as well as the linearized versions are proposed. The formulations substantially mitigate complexity of the existing models due to the fewer number of constraints and v...

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