Knowledge based and CP-driven approach applied to multi product small-size production flow
Knowledge sharing in flexible supply networks: a context-based approach
La programación geométrica en la economía de las producciones ganaderas.
Se modeliza el problema no lineal de producción de carne de vacuno por Programación Geométrica Signomial. Los datos técnicos utilizados se han extraído del trabajo de Epplin y Heady (1984). Se aplican transformaciones inversas y métodos de condensación al problema signomial para simplificar el modelo teórico. Finalmente, se calcula la composición de la ración óptima, bajo distintas consideraciones y se comentan los resultados obtenidos, que confirman y completan otros experimentales ya existentes...
La programmation mathématique multicritère et la gestion des ressources en eau
La recherche de l'ensemble optimal des itinéraires des véhicules dans une entreprise de transports automobiles extra-urbains
L'affectation exponentielle et le problème du plus court chemin dans un graphe
Lagrangean Heuristic for a Multi-Plant Lot-Sizing Problem with Transfer and Storage Capacities
The paper addresses a multi-item, multi-plant lot-sizing problem with transfer costs and capacity constraints. The problem is reformulated according to a multi-commodity flow formalism, and decomposed, through Lagrangean relaxation, into a master facility location problem and a slave minimal cost multi-commodity flow problem. The decomposition framework gives rise in a natural way to designing a Lagrangean based heuristic. Numerical experiments showing the efficiency of the proposed approach are...
L'aide multicritère à la décision : un cas d'intégration de critères techniques, économiques et environnementaux à Hydro-Québec
Laplace-Stieltjes transform of the system mean lifetime via geometric process model
Operation principle of the engineering systems occupies an important role in the reliability theory. In most of the studies, the reliability function of the system is obtained analytically according to the structure of the system. Also in such studies the mean operating time of the system is calculated. However, the reliability function of some systems, such as repairable system, cannot be easily obtained analytically. In this case, forming Laplace-Stieltjes transform of the system can provide a...
Large deviations for tandem queueing systems.
Large neighborhood improvements for solving car sequencing problems
The -hard problem of car sequencing has received a lot of attention these last years. Whereas a direct approach based on integer programming or constraint programming is generally fruitless when the number of vehicles to sequence exceeds the hundred, several heuristics have shown their efficiency. In this paper, very large-scale neighborhood improvement techniques based on integer programming and linear assignment are presented for solving car sequencing problems. The effectiveness of this approach...
Large neighborhood improvements for solving car sequencing problems
The NP-hard problem of car sequencing has received a lot of attention these last years. Whereas a direct approach based on integer programming or constraint programming is generally fruitless when the number of vehicles to sequence exceeds the hundred, several heuristics have shown their efficiency. In this paper, very large-scale neighborhood improvement techniques based on integer programming and linear assignment are presented for solving car sequencing problems. The effectiveness of this approach...
Large Neighborhood Local Search for the P-Median Problem
Layout Design of User Interface Components With Multiple Objectives
Le problème de collecte des ordures urbaines
Le problème des roulements de quarts pour les entreprises à feu continu
Learning automata for data communication routing problem
Les problématiques de l'aide à la décision : vers l'enrichissement de la trilogie choix-tri-rangement
Les problèmes de tournées avec contraintes de fenêtres de temps, l'état de l'art
Les problèmes d'ordonnancement de type «flow-shop» hybride : état de l'art