RT info:eu-repo/semantics/article
T1 Minimizing the operating costs of block retrieval operations in stacking facilities
A1 López Plata, Israel
A1 Expósito Izquierdo, Cristofer Juan
A1 Moreno Vega, José Marcos
A2 Ingeniería Informática y de Sistemas
K1 Blocks Relocation Problem with Operating Costs
K1 Heuristic
K1 Stacking facility
K1 Optimization model
K1 A∗ algorithm
AB This paper addresses the Blocks Relocation Problem with Operating Costs, whose main objective is to retrieve a set of blocks from a stacking facility while minimizing the operating cost. An integer programming model and a deterministic algorithm are developed to solve the problem from an exact standpoint. Both approaches are able to solve the problem optimally only for small size problem scenarios, requiring large amount of computational time and memory in mediumandlarge size problem instances. On the other hand, a heuristic algorithm based on A∗ is also proposed with the goal of reducing considerably the computational resources, allowing to solve large problem instances. The computational results disclose this algorithm generates high-quality solutions in reasonable computational times.
YR 2019
FD 2019
LK http://riull.ull.es/xmlui/handle/915/40628
UL http://riull.ull.es/xmlui/handle/915/40628
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 04-ene-2025