A Branch-and-Bound Algorithm for the Close-Enough Traveling Salesman Problem

Autor: Roberto Quirino do Nascimento, Artur Alves Pessoa, Anand Subramanian, Walton Pereira Coutinho
Rok vydání: 2016
Předmět:
Zdroj: INFORMS Journal on Computing. 28:752-765
ISSN: 1526-5528
1091-9856
DOI: 10.1287/ijoc.2016.0711
Popis: This paper addresses the close-enough traveling salesman problem. In this problem, rather than visiting the vertex (customer) itself, the salesman must visit a specific region containing such vertex. To solve this problem, we propose a simple yet effective exact algorithm, based on branch-and-bound and second order cone programming. The proposed algorithm was tested in 824 instances suggested in the literature. Optimal solutions are obtained for open problems with up to a thousand vertices. We consider instances both in two- and three-dimensional space.
Databáze: OpenAIRE