V. Blanco, A. Marín
We introduce here the Tree of Hubs Location Problem with Upgrading, a mixture of the Tree of Hubs Location Problem and the Minimum Cost Spanning Tree Problem with Upgraded nodes. In addition to locate the hubs, to determine the tree that connects the hubs and to allocate non-hub nodes to hubs, a decision has to be made about which of the hubs will be upgraded, taking into account that the total number of upgraded nodes is given. We present two different Mixed Integer Linear Programming formulations for the problem, tighten the formulations and generate several families of valid inequalities for them. A computational study is presented showing the improvements attained with the strengthening of the formulations and comparing them.
Palabras clave / Keywords: localización discreta, localización de concentradores, programación lineal entera mixta
Programado
Sesión GT04-1: Localización (GELOCA-1). Organizador: Antonio Manuel Rodríguez Chía
29 de mayo de 2018 15:20
Sala 3