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

We consider a generalization of PERT where task durations are variable and the cost of each task is a convex function of its duration. Moreover, each preced...

The vehicle routing problem with time windows (VRPTW) is a generalization of the vehicle routing problem where the service of a customer can begin within th...

In this paper, the problem of optimally locating the numbers around a dart board is investigated. The objective considered is risk maximization. Under diffe...

This paper considers a flexible manufacturing system for several products, each requiring a number of sequential non-preemptive tasks, some of which may be...

The development of truck dispatching systems has during recent years taken two directions. One has been systems using mathematical optimization and powerfu...

Because of the transmission of disease producing parasites to man and animals and the nuisance caused by bites from adult black flies, they are the object o...

This paper presents a model for the optimization of productivity in a steel plant comprised of four arc furnaces and three continuous casting machines and su...

The vehicle routing problem (VRP) involves the design of a set of minimum cost routes, originating and terminating at a central depot, for a fleet of vehicl...

The two-dimensional cutting-stock problem consists of laying out a specified list of rectangular pieces on rectangular sheets, in such a way as to minimize t...

The vehicle routing problem (VRP) involves the design of a set of minimum cost routes for a fleet of vehicles which services exactly once a set of customers...

Schedule compression is a major concern in project management. We propose an extension of the classical crashing model to include the managerial practice of...

This paper shows how the subtour elimination constraints developed by Miller, Tucker and Zemlin for the traveling salesman problem can be improved and exten...

We consider projects represented by a PERT network, with convex cost-of-time functions on individual activities, and we show the existence of an efficient m...

The multiple vehicle many-to-many routing problem is presented in the context of a dial-a-ride system. It is solved by mini-clustering first and optimal ro...

In this paper, we present general formulations for the stochastic vehicle routing problem with capacity restrictions in which the <i>m</i> vehicle tours hav...

Given a weighted graph with profits associated with the vertices, the selective travelling salesman problem (or orienteering problem) consists of selecting ...

We present a dual algorithm to minimize a separable convex function under ratio constraints between variables. This minimization problem occurs when the dep...

This paper describes a family of stochastic location-routing problems which consist of simultaneously locating a depot among a set of potential sites, of det...

In this paper we analyze the problem of finding the trading area for a facility on a linear market. Given the objective of maximizing profit, we first build...