|
|
Detailed schedule
Click on a link for more details
Show all the abstracts
Show all the abstracts
Thursday 11:00:00 Timetabling in education and sport Room 126 - Chair: G. Vanden Berghe
Thursday 11:00:00 Transportation management Room 130 - Chair: F. Semet
Thursday 11:00:00 Networks Room 138 - Chair: B. Fortz
Thursday 11:00:00 Nonconvex optimization 1 Room 035 - Chair: F. Bach
Thursday 14:00:00 Constraint programming models 1 Room 126 - Chair: Y. Deville
- Constraint-based Very Large-Scale Neighborhoods
Sébastien Mouthuy (Université Catholique de Louvain) Co-authors: Y.Deville and P.Van Hentenryck
- Implementation in COMET of a Traffic Engineering technique that Preserves IP Fast Reroute
Trong Viet Ho (UCL, Belgium) Co-authors: Yves Deville, Olivier Bonaventure Abstract: With Intradomain Routing Protocols, by optimizing the configuration (Trafic Engineering -TE) of link weights, operators can significantly improve the load of their links, which is known to be an NP-hard problem. Another emerging issue for ISP networks is the fast restoration of IP services in the case of failures. Recently, Fast Reroute techniques have been proposed for pure IP networks. The Loop-Free-Alternates (LFA) is one of the most promising technique. An LFA for a router A, for a destination d, is a neighbor C of A which does not use A to reach d, so that A can prepare itself to directly reroute the traffic destined to d along its link with C upon the failure of the link that A is using to reach d. Our objective is to provide a TE technique that takes the coverage of LFAs into account during the network resource usage optimization. Constraint Programming and Constraint-Based Local Search are well suited for solving such complex combinatorial problems. Especially in COMET, some classical problems can be modeled in only about a dozen lines of code. So, we have chosen a local search algorithm implemented in COMET for solving our traffic engineering problem.
- Constraint-Based Graph Matching
Vianney Le Clément (UCLouvain) Co-authors: Yves Deville, Christine Solnon
- DynaUniversity2009
Kevin Ghislain (ULB) Co-authors: B. Fortz, S. Zampelli, P. Schaus, A. Zanarini
Thursday 14:00:00 Vehicle routing Room 130 - Chair: S. Limbourg
Thursday 14:00:00 Combinatorial optimization and IP applications Room 138 - Chair: Q. Louveaux
Thursday 14:00:00 Nonconvex Optimization 2 Room 035 - Chair: R. Sepulchre
Thursday 16:10:00 Constraint programming models 2 Room 126 - Chair: P. Schaus
Thursday 16:10:00 Performance modeling Room 130 - Chair: G. Janssens
Thursday 16:10:00 Scheduling Room 138 - Chair: K. Sorensen
Thursday 16:10:00 Planning under uncertainty Room 035 - Chair: R. Leus
Friday 09:00:00 Metaheuristics Room 126 - Chair: J. Teghem
Friday 09:25:00 Production and distribution (9:25) Room 130 - Chair: Y. Arda
Friday 09:00:00 Multiple criteria Room 138 - Chair: R. Bisdorff
Friday 09:25:00 Stochastic models (9:25) Room 035 - Chair: L. Esch
Friday 11:00:00 Constraint programming and Supply Chain Management Room 126 - Chair: Y. Deville
Friday 11:00:00 OR in health management Room 130 - Chair: P. De Causmaecker
Friday 11:00:00 Rankings and importance indices Room 138 - Chair: JL. Marichal
Friday 11:00:00 Queueing Room 035 - Chair: S. Wittevrongel
Friday 15:10:00 Optimization software Room 126 - Chair: E. Loute
Friday 15:10:00 Integrated operations planning Room 130 - Chair: B. Raa
Friday 15:10:00 Cycles in graphs Room 138 - Chair: F. Spieksma
|
|