Snow removal and disposal are important and expensive winter operations in many cities. When a large amount of snow accumulates in an urban area and impedes...

This paper deals with the inventory control problem for production system in which the produced items are supposed to be deteriorating with fixed rates. The...

This case study analyses the use and sharing of a logistics package, a returnable container, between Canada Post and its large mailing customers. Canada Po...

In the set of bicolored trees with given numbers of black and of white vertices we describe those for which the largest eigenvalue is extremal (maximal or m...

In cellular networks, channels must be assigned to call requests so that interference constraints are respected and bandwidth is minimized. The number of ca...

This article was written for the <i>Encyclopedia of Optimization.</i>

Quatre regards sur la découverte, ceux du psychologue, de l'historien, du sociologue et du cognicien sont évoqués en quelques remarques illustrées d'exemples.

Cellular networks are generally modeled as node-weighted graphs, where the nodes represent cells and the edges represent the possibility of radio interferen...

This article was written for the <i>Encyclopedia of Optimization.</i>

A method to generate lower bounds for the channel assignment problem is given. The method is based on the reduction of the channel assignment problem to a p...

Eugène est un modèle dynamique de programmation linéaire mixte qui constitue un outil d'aide à la décision efficace pour les décideurs impliqués dans la pla...

Mirkin's additive clustering (or qualitative factor analysis) algorithm explains similarities between entities by sequentially finding a cluster of entities...

It is shown that a geometrically planar fusene is uniquely determined by its boundary edge code. Surprisingly, the same conclusion is not true in general b...

The paper deals with the problem of sustaining over time a coordinated outcome in a two-member channel of distribution. In a dynamic game of pricing and ad...

Variable Neighborhood Search is a recent metaheuristic based on the idea of systematic change of neighborhood during both a descent phase and an exploration...

Changes in financial market are collective human decisions which are result of the dynamics of the neurons. In this paper, we describe a discrete time Recur...

In classical module theory, a module over a principal ideal domain may be split into the direct sum of a free module and a torsion module. This decompositio...

We study several formulations of the channel assignment problem in an FDMA network as a linear integer 0-1 program. We consider the objective of minimizing...

L'affectation de type d'avion aux vols consiste à déterminer, pour chaque arc de vol, le type d'avion qui lui sera affecté de façon à maximiser les profits ...

The Joint Replenishment Problem (JRP) is a multi-item inventory problem. The objective is to develop inventory policies that minimizes the total costs (comp...