This paper describes a vector space decomposition algorithmic framework for linear programming guided by dual feasibility considerations. The resolution pro...

Synchronization of workers and vehicles plays a major role in many industries such as logistics, healthcare or airport ground handling. In this paper, we fo...

Nous étudions ici l'impact des contraintes de niveaux de service dans le contexte des problèmes de planification de production avec ou sans contrainte de cap...

La création d’horaires de personnel aériens est généralement effectuée en deux étapes : la création de rotations d’équipage, suivie par la création d’horaire...

We study a rich production-routing problem with time windows arising at a catering services company. The production part consists of assembling the meals to ...

L'indice géométrique-arithmétique \(GA\) d'un graphe \(G\) est la somme des ratios, sur l'ensemble des arêtes de \(G\), de la moyenne géométrique sur l...

Dans le présent article, nous comparons l'indice géométrique-arithmétique \(GA\) et le nombre chromatique \(\chi\) d'un graphe connexe d'ordre donné. Ent...

The technological developments observed in the last two decades contributed to the digitalization of products and the introduction of devices to consume th...

In this paper, we introduce a general framework for vector space decompositions that decompose the set partitioning problem into a reduced problem, defined...

The vehicle routing problem with time windows (VRPTW) consists of finding least-cost vehicle routes to satisfy the demands of customers that can be visited...

Inventory routing problems aim at minimizing the cost of the total distance traveled over a time horizon discretized in periods, while guaranteeing that th...

This paper introduces the pickup and delivery problem with time windows and handling operations. In this problem, the loading compartment of a vehicle is mod...

Variable neighborhood search (VNS) is a framework for building heuristics, based upon systematic changes of neighborhoods both in a descent phase, to find a...

Given a flight schedule and a set of aircraft of different types, the airline fleet assignment problem (FAP) consists of assigning an aircraft type to each f...

We model and solve the problem of sequencing a set of jobs with specified processing times and tool requirements on a set of identical parallel machines. D...

The tail assignment problem is a critical part of the airline planning process that assigns specific aircraft to sequences of flights, called lines-of-flight...

In this paper we present a novel formulation based on a certain median function to solve discretely constrained mixed complementarity problems (MCPs). Such p...

Starting from the improved primal simplex (IPS) decomposition, introduced by Elhallaoui et al. (2011) to tackle degeneracy in general linear programs, we int...

Non-price attributes such as prior relationship, product quality, and reliability can be more important than bidding prices for the buyers when selecting the...

Cet article traite du problème de gestion de projet avec contraintes de ressources qui consiste à ordonnancer des activités de façon à minimiser le temps de ...