Branch-and-Price for a Multi-attribute Technician Routing and Scheduling Problem

Autor: Michel Gendreau, Jean-Yves Potvin, Ines Mathlouthi
Rok vydání: 2021
Předmět:
Zdroj: Operations Research Forum. 2
ISSN: 2662-2556
DOI: 10.1007/s43069-020-00044-x
Popis: In this paper, we present an exact branch-and-price algorithm for a multi-attribute technician routing and scheduling problem. This problem integrates a number of distinctive features from a real-world application, like management of an inventory of different parts and multiple time windows for service. Based on the fact that not all tasks need to be performed, a new ternary branching scheme is introduced within the branch-and-price algorithm. Computational results show that our algorithm can solve instances with up to 45 tasks and greatly improves upon a commercial solver applied to an arc-based mixed integer linear program.
Databáze: OpenAIRE