1. Departamento de Estadistica, Informatica y Matematicas, Universidad Publica de Navarra, Campus de Arrosadia, Pamplona, Spain
2. Department of Computer Science and Artificial Intelligence, Andalusian Research Institute “Data Science and Computational Intelligence”, University of Granada, Granada, Spain
3. Centro de Ciências Computacionais, Universidade Federal do Rio Grande, Rio Grande, Brazil
4. Department of Statistics and Research Operations, University of Granada, Granada, Spain