We present a 0-1 column generation model for channel block assignment in a cellular network, with the objective of minimizing the interference level. Priori...

The Steiner Tree Problem in graphs (STP) is well known NP-Hard problem. It has regained attention due to the introduction of new telecommunication technolog...

In recent years, several advances have been made towards the solution of stochastic vehicle routing problems (SVRPs). In particular, the Integer <i>L</i>-Sh...

This article describes a heuristic and two exact algorithms for several classes of vehicle routing problems defined on tree networks. These include capacita...

We study the subgradient projection method for convex optimization with Brännlund's level control for estimating the optimal value. We establish global con...

A new hybrid algorithm is being introduced for solving Mixed Integer Nonlinear Programming (MINLP) problems which arise from study of many real-life enginee...

This article describes a method for solving the crew rostering problem in air transportation. This problem consists of constructing personalized schedules ...

This paper deals with the problem of how to update a telecommunication network economically. We first propose a mixed integer programming model that include...

In this article we propose a model for the topological design problem of two-level multitechnology telecommunication networks that includes the optimal loca...

This paper describes an advanced bottom-up approach for modelling the energy-environment sector to study greenhouse gas abatement. Three new features are d...

This paper describes the Preferential Bidding Problem solved in the airline industry to construct personalized monthly schedules for pilots and officers. T...

A decomposition method for global optimization, when some of the problem variables are integer, is presented. Potential solutions for a specific problem ar...

We describe the analytic center cutting plane method and its relationship to classical methods of nondifferentiable optimization and column generation. Impl...

This article describes the results of a study aimed at improving linen delivery operations in a large teaching hospital in Montreal. Improvements over the p...

We propose a common solution approach for different crew scheduling problems arising at the planning and operational levels in the airline industry. Specifi...

This paper introduces a strong valid inequality, the 2-path cut, to produce better lower bounds for the Vehicle Routing Problem with Time Windows (VRPTW). ...

This article considers a tool loading problem whose objective is to minimize the number of tool switches over time in order to process several parts on a fl...

This paper describes two variant of the Indian MARKAL model, a long-term technology oriented optimization model for energy-environment planning for India. T...

The need for an integrating framework for vehicle routing and crew scheduling problems has been apparent for some time. While several attempts have been ma...

The paper considers two cases of variational inequality problems. The first case involves an affine monotone operator over a convex set defined by a separat...