Search Results - "Yaman, Hande"
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Convex hull results for generalizations of the constant capacity single node flow set
Published in Mathematical programming (01-05-2021)“…For single node flow sets with fixed costs and constant capacities on the inflow and outflow arcs, a family of constant capacity flow covers are known to…”
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Shelter Location and Evacuation Route Assignment Under Uncertainty: A Benders Decomposition Approach
Published in Transportation science (01-03-2018)“…Shelters are safe facilities that protect a population from possible damaging effects of a disaster. For that reason, shelter location and traffic assignment…”
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Compromising system and user interests in shelter location and evacuation planning
Published in Transportation research. Part B: methodological (01-02-2015)“…•We combine shelter location decisions with evacuation traffic assignment.•Our model combines the point-views of the evacuation authority and the evacuees.•We…”
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A branch-and-cut algorithm for the hub location and routing problem
Published in Computers & operations research (01-10-2014)“…We study the hub location and routing problem where we decide on the location of hubs, the allocation of nodes to hubs, and the routing among the nodes…”
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New exact solution approaches for the split delivery vehicle routing problem
Published in EURO journal on computational optimization (01-03-2018)“…In this study, we propose exact solution methods for the split delivery vehicle routing problem (SDVRP). We first give a new vehicle-indexed flow formulation…”
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Solving the hub location problem in a star-star network
Published in Networks (01-01-2008)“…We consider the problem of locating hubs and assigning terminals to hubs for a telecommunication network. The hubs are directly connected to a central node and…”
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Allocation strategies in hub networks
Published in European journal of operational research (16-06-2011)“…In this paper, we study allocation strategies and their effects on total routing costs in hub networks. Given a set of nodes with pairwise traffic demands, the…”
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Formulations and branch-and-cut algorithms for the heterogeneous fleet vehicle routing problem with soft time deadlines
Published in Transportation research. Part B: methodological (01-12-2024)“…This paper investigates a variant of the heterogeneous fleet vehicle routing problem (HVRP) that incorporates soft time deadlines for customers and allows for…”
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Short Paper - A Note on Robust Combinatorial Optimization with Generalized Interval Uncertainty
Published in Open Journal of Mathematical Optimization (05-06-2023)“…In this paper, we consider a robust combinatorial optimization problem with uncertain weights and propose an uncertainty set that generalizes interval…”
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Robust alternative fuel refueling station location problem with routing under decision-dependent flow uncertainty
Published in European journal of operational research (01-04-2023)“…•We introduce a decision-dependent polyhedral vehicle flow uncertainty set.•We model the uncertain parameters to be affinely dependent on location…”
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Star p-hub median problem with modular arc capacities
Published in Computers & operations research (01-09-2008)“…We consider the hub location problem, where p hubs are chosen from a given set of nodes, each nonhub node is connected to exactly one hub and each hub is…”
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The hierarchical hub median problem with single assignment
Published in Transportation research. Part B: methodological (01-07-2009)“…We study the problem of designing a three level hub network where the top level consists of a complete network connecting the so-called central hubs and the…”
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A capacitated hub location problem under hose demand uncertainty
Published in Computers & operations research (01-12-2017)“…•We study a robust capacitated multiple allocation hub location problem with hose demand uncertainty.•We propose a mixed integer programming formulation and…”
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Mathematical formulations for the multi-period alternative fuel refueling station location problem with routing under decision-dependent flow dynamics
Published in Transportation research. Part B: methodological (01-08-2024)“…The refueling station location problem with routing considers vehicles’ ranges and drivers’ preferences about their routes to improve the alternative fuel…”
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A Branch-and-Cut Algorithm for the Inventory Routing Problem with Product Substitution
Published in Omega (Oxford) (01-02-2023)“…•We incorporate the product substitution option into the inventory routing problem.•We propose a mathematical model and new families of valid inequalities.•We…”
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An intermodal multicommodity routing problem with scheduled services
Published in Computational optimization and applications (01-09-2012)“…We study a multicommodity routing problem faced by an intermodal service operator that uses ground and maritime transportation. Given a planning horizon, a set…”
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Robust intermodal hub location under polyhedral demand uncertainty
Published in Transportation research. Part B: methodological (01-04-2016)“…•We incorporate demand uncertainty into the hub location problem within a robust optimization framework.•We propose two Benders decomposition algorithms and…”
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Two-stage facility location problems with restricted recourse
Published in IIE transactions (02-12-2021)“…We introduce a new class of two-stage stochastic uncapacitated facility location problems under system nervousness considerations. The location and allocation…”
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Periodic Vehicle Routing Problem with Driver Consistency and service time optimization
Published in Transportation research. Part B: methodological (01-12-2022)“…The Periodic Vehicle Routing Problem with Driver Consistency is an extension of the classic Vehicle Routing Problem in which routes for several vehicles have…”
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