A positive basis is a minimal set of vectors whose nonnegative linear combinations span the entire space R<i>ⁿ</i>. Interest in positive bases wa...

Climate change is one of the greatest challenges facing our planet in the foreseeable future and despite the urgency of the situation global GHG emissions ...

In this paper, we introduce the notion of dynamic copulas to model serial dependence as well as interdependence between several time series. The proposed m...

The traffic evolution is notoriously marked by an increasing dynamism that promotes the design of a dynamic optical layer. Despite the contention issue, Opti...

The focus of this paper is on the design of the so-called Optical Wide Area Networks (OWANs), i.e., optical networks that cover broad areas. Our objective ...

This work introduces a new shared segment protection scheme that ensures both node and link protection in an efficient manner in terms of cost and band...

We consider a multi-layer network design model arising from a real-life telecommunication application where traffic routing decisions imply the installati...

Optical transmission allows massive data transfers thanks to its tremendous transport capacity. Sustained efforts have been made to address the physical co...

Availability requirements in survivable transport networks depend on the type of costumers using the network and the supported services. Nowadays, a variety ...

In today optical WDM networks, capacity expansion is performed by the addition of transport blades (e.g., transceivers) at end nodes of optical fibers. It al...

We study the problem of constructing shifted rank-1 lattice rules for the approximation of high-dimensional integrals with a low weighted star discrepancy, f...

In this paper we establish the definition of the <i>set of &epsilon;-proper equilibria</i> of a bimatrix game. We define a 0-1 mixed quadratic program to ge...

We give an explicit description of the basic solutions of max-linear systems <img src="/cgi-bin/mimetex.cgi?A\otimes x\leq B\otimes x"> with two inequalities.

Dans cet article, on raconte l'histoire de l'équipe GENCOL et du logiciel d'optimisation du même nom. C'est avant tout le récit d'une collaboration qui se po...

Traditionally, the airline crew scheduling problem has been decomposed into a crew pairing and a crew assignment problem that are solved sequentially. The f...

La confection de calendriers sportifs dans le milieu scolaire québécois est une tâche complexe à laquelle la Fédération Québécoise du Sport Étudiant (FQSE) d...

The main goal of this paper is to bring a contribution in order to facilitate automatic refinement of Bimatrix Game Nash extreme equilibria. We show how maxi...

We introduce the OPAL framework in which the identification of good algorithmic parameters is interpreted as a black box optimization problem whose variables...

Recent advances in coupling novel optimization methods to large-scale computing problems have opened the door to tackling a diverse set of physically realist...

In this paper we propose new matheuristics for solving multidimensional knapsack problem. They are based on the variable neighbourhood decomposition search (...