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ORBi Open Repository and Bibliography (287.666 recursos)

In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Business & economic sciences => Quantitative methods in economics & management

Mostrando recursos 1 - 20 de 390

  1. Early Detection of University Students with Potential Difficulties

    Hoffait, Anne-Sophie; Schyns, Michael
    Peer reviewed

  2. De nouveaux terminaux à conteneurs en Belgique : hasard ou nécessité ?

    Jourquin, Bart; Limbourg, Sabine
    Peer reviewed

  3. A class of valid inequalities for multilinear 0-1 optimization problems

    Rodriguez Heck, Elisabeth; Crama, Yves

  4. A class of valid inequalities for multilinear 0-1 optimization problems

    Rodriguez Heck, Elisabeth; Crama, Yves

  5. Iterated local search for the capacitated vehicle routing problem with sequence-based pallet loading and axle weight constraints

    Pollaris, Hanne; Braekers, Kris; Caris, An; Janssens, Gerrit, K.; Limbourg, Sabine
    Peer reviewed

  6. A tailored two-phase constructive heuristic for the three-dimensional Multiple Bin Size Bin Packing Problem with transportation constraints

    Paquay, Célia; Limbourg, Sabine; Schyns, Michael
    This paper considers the three-dimensional Multiple Bin Size Bin Packing Problem which consists in packing a set of cuboid boxes into containers of various shapes with minimising unused space. The problem is extended to air cargo where bins are Unit Load Devices, especially designed for fitting in aircraft. We developed a fast constructive heuristic able to manage the different constraints met in transportation. The heuristic is split into two distinct phases. The first phase deals with the packing of boxes into identical bins using an extension of the Extreme Points. During this phase, the fragility, stability and orientations of the boxes are taken into account as well...

  7. Road and intermodal transport performance: the impact of operational costs and air pollution external costs

    Mostert, Martine; Caris, An; Limbourg, Sabine
    Peer reviewed

  8. Instances for the 3D Multiple Bin Size Bin Packing Problem

    Paquay, Célia; Limbourg, Sabine; Schyns, Michael
    The subject of this work is to solve the problem of packing a set of shipments (various cuboid boxes) into containers of various shapes without wasting loading space. All the boxes have to be loaded and few are identical. As it is the case for all the packing problems, the packing has to satisfy geometry constraints: the items cannot overlap and have to lie entirely inside the bins. The richness of our application is to manage additional and common constraints: the bin weight capacity, the rotations of the boxes, the stability and the fragility of the boxes and the uniformity...

  9. A bi-objective model for intermodal transport

    Mostert, Martine; Limbourg, Sabine
    Peer reviewed

  10. Intermodal network design: a three-mode bi-objective model applied to the case of Belgium

    Mostert, Martine; Caris, An; Limbourg, Sabine
    Peer reviewed

  11. A class of valid inequalities for multilinear 0-1 optimization problems

    Rodriguez Heck, Elisabeth; Crama, Yves

  12. Quadratic reformulations of nonlinear binary optimization problems

    Crama, Yves

  13. A column generation approach to job grouping for flexible manufacturing systems

    Crama, Yves; Oerlemans, Alwin G.
    Peer reviewed

  14. On the strength of relaxations of multidimensional knapsack problems

    Crama, Yves; Mazzola, Joseph B.
    Peer reviewed

  15. Berge-acyclic multilinear 0-1 optimization problems

    Buchheim, Christoph; Crama, Yves; Rodriguez Heck, Elisabeth

  16. Les problèmes “riches” de tournées de véhicules

    Limbourg, Sabine

  17. La compétitivité du transport intermodal

    Limbourg, Sabine

  18. Approximation algorithms for integer covering problems via greedy column generation

    Crama, Yves; Van de Klundert, Joris
    Peer reviewed

  19. Complexity of product positioning and ball intersection problems

    Crama, Yves; Hansen, Pierre; Jaumard, Brigitte
    Peer reviewed

  20. Valid inequalities and facets for a hypergraph model of the nonlinear knapsack and FMS part-selection problems

    Crama, Yves; Mazzola, Joseph B.
    Peer reviewed

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