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A preemptive bound for the Resource Constrained Project Scheduling Problem
(
Springer US
, 2014 , Article)
The Resource Constrained Project Scheduling Problem is one of the most intensively investigated scheduling problems. It requires scheduling a set of interrelated activities, while considering precedence relationships, and ...
Solving a large-scale integrated fleet assignment and crew pairing problem
(
Springer New York LLC
, 2017 , Article)
Airline schedule planning problems are typically decomposed into smaller problems, which are solved in a sequential manner, due to the complexity of the overall problems. This results in suboptimal solutions as well as ...
A simulation-optimisation approach for supply chain network design under supply and demand uncertainties
(
Taylor and Francis Ltd.
, 2017 , Article)
We investigate a three-echelon stochastic supply chain network design problem. The problem requires selecting suppliers, determining warehouses locations and sizing, as well as the material flows. The objective is to ...
An optimization-based heuristic for the machine reassignment problem
(
Springer New York LLC
, 2016 , Article)
We address the machine reassignment problem proposed in the context of the ROADEF/EURO challenge 2012 in partnership with Google. The problem consists in reassigning a set of processes to a set of multiple-resource machines ...
Optimization-based very large-scale neighborhood search for generalized assignment problems with location/allocation considerations
(
INFORMS Inst.for Operations Res.and the Management Sciences
, 2016 , Article)
This paper introduces a novel class of generalized assignment problems with location/allocation considerations that arises in several applications including retail shelf space allocation. We consider a set of items where ...
Exact solution methods for a generalized assignment problem with location/allocation considerations
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INFORMS Inst.for Operations Res.and the Management Sciences
, 2016 , Article)
We investigate modeling approaches and exact solution methods for a generalized assignment problem with location/allocation (GAPLA) considerations. In contrast with classical generalized assignment problems, each knapsack ...
A hybrid optimization-simulation approach for robust weekly aircraft routing and retiming
(
Elsevier Ltd
, 2017 , Article)
We address the robust weekly aircraft routing and retiming problem, which requires determining weekly schedules for a heterogeneous fleet that maximizes the aircraft on-time performance, minimizes the total delay, and ...
A model and optimization-based heuristic for the operational aircraft maintenance routing problem
(
Elsevier Ltd
, 2016 , Article)
This paper investigates the Operational Aircraft Maintenance Routing Problem (OAMRP). Given a set of flights for a specific homogeneous fleet type, this short-term planning problem requires building feasible aircraft routes ...
A practical solution approach for the green vehicle routing problem
(
Elsevier Ltd
, 2017 , Article)
Green vehicle routing (GVRP) is an active research area that is concerned with the development and analysis of distribution activities with eco-friendly vehicles. We propose a practical solution approach for the GVRP that ...
Lifted polynomial size formulations for the homogeneous and heterogeneous vehicle routing problems
(
Elsevier B.V.
, 2017 , Article)
We propose compact formulations for the symmetric and asymmetric capacitated vehicle routing problems. These formulations are obtained by lifting, using the Reformulation-Linearization Technique, a novel polynomial size ...