Affiliation: | 1.Department of Electronics and Informatics, Universidad Técnica Federico Santa María, 4030000, Concepción, Chile ;2.Department of Computer Science and Artificial Intelligence, University of Granada, 18071, Granada, Spain ;3.Department of Computer Science, University of Jaén, 23071, Jaén, Spain ;4.Department of Computer Science, University “Marta Abreu” of Las Villas, 54830, Santa Clara, Cuba ; |