We consider the problem of determining a hyperplane that separates, as "well" as possible, two finite sets of points in <i>Rⁿ</i>. We analyze two...

A manager planning a distribution network faces a multiple-vehicle routing problem. The first step is to assign customers to vehicles. One way to do this is...

This paper deals with a stochastic programming model which complements long range market simulation models such as those currently developed by several gas ...

The (<b>R</b>,max,+) algebra gives raise, to a "linear algebra" very usefull in the context of DEDS which can be represented by envent graphs. Some propert...

The Airline Crew Scheduling Problem can be defined as the problem of finding a set of feasible rotations so that the total cost is minimum and all the fligh...

In this paper, we report on an updated, improved version of the MARKAL energy model, developed in the late 1970's under the aegis of member countries of the...

The refining industry is faced with medium and long term planning problems (e.g. crude supply, stocks, capacity decisions) where an important part of the da...

In this paper, we present decomposition algorithms for the solution of large scale stochastic dynamic problems, with convergence results and implementation ...

A notion of Nash equilibrium, called event-adapted equilibrium, is defined for non-cooperative, multi-stage games where uncertainty is gradually resolved. ...

We prove a planarity-independent analogue of a theorem of Nowakowski, Rival and Urrutia concerning lattices contained in orders representable as blocking re...

A semilattice <i>S</i> is an associative, commutative and idempotent binary operation on a set. The product <i>xy</i> then corresponds to the least upper bo...

We propose in this paper new approximate algorithms for the Minimum Rectilinear Steiner Tree problem, based on a two-point-connection strategy. We also pres...

This paper describes a domain criterion for a multicriteria problem, given a single decision maker. It then outlines possibilities for aggregating individua...

In this paper, we deal with the problem of sequencing parts and robot moves in a robotic cell where the robot is used to feed machines in the cell. The robo...

L'algèbre (max, +) est un outil important en Recherche Opérationnelle et en Automatique dans le contexte de l'analyse des systèmes à événements discrets. L'...

We address in this paper the problem of finding an optimal strategy for dealing with bottleneck machines and bottleneck parts in the cell formation process ...

We analyze the vehicle routing problem with constraints on the total distance traveled by each vehicle. Two objective functions are considered: minimize t...

It is proved that for any hexagonal system, there is a peak and a valley which are border adjacent (the path from the peak to the valley along the border is...

Among orders that arise from obstructions between geometric or abstract objects, certain lattices and lattice-like structures appear distinctively. This pap...

In many cities around the world, public transportation services are requested to provide adapted transportation for handicapped persons and people with rest...