P.M.Y. Timmer, Metz & co. De creatieve jaren

co-directeur de recherche

Pickup and Delivery Problems (PDPs) are a relevant class of vehicle routing problems in which objects or people need to be collected and distributed. These problems have many applications in logistics, ambulatory services and robotics. In this thesis, we survey the static and dynamic PDPs appearing in the literature, we provide a classification scheme for them, and we show the relations between...

Ulf Dieckmann , and Johan A . J . Metz

Species form different kinds of patches; these patches form a mosaic and together constitute the community. Recognition of the patch is fundamental to an understanding of structure. Patches are dynamically related to each other. But there are also departures from this inherent tendency to orderliness. At any given time, therefore, structure is the resultant of causes which make for order, and t...

Co de nite Set Constraints

In this paper we introduce the class of co de nite set constraints This is a natural sub class of set constraints which when satis able have a greatest solution It is practically motivated by the set based analysis of logic programs with the greatest model semantics We present an algorithm solving co de nite set constraints and show that their satis a bility problem is DEXPTIME complete

H . , Metz , J . , Teanby , N . A . , Ward , A . D .

Christophe Macabiau Co-directeur de thèse Marie-Laure Boucheret Co-directeur de thèse