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Algorithm for turnpike policies in the dynamic lot size model

Stanisław Bylka (1996)

Applicationes Mathematicae

This article considers optimization problems in a capacitated lot sizing model with limited backlogging. Nothing is assumed about the cost function in the case of finite restrictions of the size on the stock and backlogs. The holding and backlogging costs are functions assumed to be stationary or nearly stationary in time. In both cases, it is shown that there exists an optimal infinite inverse policy and a periodical turnpike policy. Some forward and backward procedures are adopted that determine...

Algorithmes hybrides génériques pour la résolution de problèmes de satisfaction de contraintes

Hervé Deleau, Jin-Kao Hao, Frédéric Saubion (2005)

RAIRO - Operations Research - Recherche Opérationnelle

Nous présentons dans cet article un algorithme générique hybride permettant de combiner des méthodes complètes (programmation par contraintes) et incomplètes (recherche locale) pour la résolution de problèmes de satisfaction de contraintes. Ce schéma algorithmique basé sur la gestion de populations, utilise des techniques de propagation de contraintes intégrant également des heuristiques de recherche locale. Les structures utilisées autorisent une interaction homogène entre les différentes méthodes...

Algorithmes hybrides génériques pour la résolution de problèmes de satisfaction de contraintes

Hervé Deleau, Jin-Kao Hao, Frédéric Saubion (2010)

RAIRO - Operations Research

Nous présentons dans cet article un algorithme générique hybride permettant de combiner des méthodes complètes (programmation par contraintes) et incomplètes (recherche locale) pour la résolution de problèmes de satisfaction de contraintes. Ce schéma algorithmique basé sur la gestion de populations, utilise des techniques de propagation de contraintes intégrant également des heuristiques de recherche locale. Les structures utilisées autorisent une interaction homogène entre les différentes méthodes...

Algorithms for the two dimensional bin packing problem with partial conflicts

Khaoula Hamdi-Dhaoui, Nacima Labadie, Alice Yalaoui (2012)

RAIRO - Operations Research

The two-dimensional bin packing problem is a well-known problem for which several exact and approximation methods were proposed. In real life applications, such as in Hazardous Material transportation, transported items may be partially incompatible, and have to be separated by a safety distance. This complication has not yet been considered in the literature. This paper introduces this extension called the two-dimensional bin packing problem with partial conflicts (2BPPC) which is a 2BP with distance...

Algorithms for the two dimensional bin packing problem with partial conflicts

Khaoula Hamdi-Dhaoui, Nacima Labadie, Alice Yalaoui (2012)

RAIRO - Operations Research

The two-dimensional bin packing problem is a well-known problem for which several exact and approximation methods were proposed. In real life applications, such as in Hazardous Material transportation, transported items may be partially incompatible, and have to be separated by a safety distance. This complication has not yet been considered in the literature. This paper introduces this extension called the two-dimensional bin packing problem with partial conflicts (2BPPC) which is a 2BP with distance...

Currently displaying 421 – 440 of 619