3 papers
math.OC2024
A New Class of Compact Formulations for Vehicle Routing Problems
Udayan Mandal, Amelia Regan, Louis Martin Rousseau +1
This paper introduces a novel compact mixed integer linear programming (MILP) formulation and a discretization discovery-based solution approach for the Vehicle Routing Problem wit…
math.OC2023
Graph Master and Local Area Routes for Efficient Column Generation for the Capacitated Vehicle Routing Problem with Time Windows
Udayan Mandal, Amelia Regan, Louis Martin Rousseau +1
In this research we consider the problem of accelerating the convergence of column generation (CG) for the weighted set cover formulation of the capacitated vehicle routing problem…
math.OC2022
Local Area Routes for Vehicle Routing Problems
Udayan Mandal, Amelia Regan, Julian Yarkony
We consider an approach for improving the efficiency of column generation (CG) methods for solving vehicle routing problems. We introduce Local Area (LA) route relaxations, an alte…