1. 1 Sapientia Hungarian University of Transylvania , Cluj-Napoca , Romania , Óbuda University , Budapest , Hungary , Doctoral School of Applied Mathematics and Applied Informatics
2. 2 Óbuda University , Budapest , Hungary , University Research, Innovation and Service Center
3. 3 Computational Intelligence Research Group , Sapientia Hungarian University of Transylvania , Cluj-Napoca , Romania , Dept. of Electrical Engineering , Târgu Mureş, Óbuda University , Budapest , Hungary , University Research, Innovation and Service Center