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Décomposition temporelle et caractérisation de solutions admissibles pour le problème d'ordonnancement à une machine

M.-L. Levy, P. Lopez, B. Pradin (2010)

RAIRO - Operations Research

We propose a temporal decomposition approach for the one-machine scheduling problem with ready times and due dates. A set of feasible schedules is characterized by means of constraint-based analysis rules. They permit the determination of the feasible locations of each task in a sequence, represented by rank intervals. A decomposition procedure based on comparisons of rank intervals is developed in order to group tasks to be sequenced in the neighbourhood of each other in a feasible solution. Computational...

Détermination d'une période économique robuste dans le cadre du modèle de Wilson

Philippe Vallin (2010)

RAIRO - Operations Research

This paper presents results about the optimal order interval in a context of fuzzy information about inventory management. The classical inventory model is based on well known cost and demand rate. In practice, this accurate estimation is very difficult to obtain, even impossible. Consequently, we propose a solution, not optimal in a classical sense, but allowing to choose an action which is not far from the optimal policy whatever the economic parameters may be. These parameters belong to a...

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