1. Cellular Sensory and Wave Computing Laboratory, Computer and Automation Research Institute; Hungarian Academy of Sciences; 1518 Budapest, Pf. 63. Hungary
2. Faculty of Information Technology; Pázmány Péter Catholic University; Budapest Hungary
3. Széchenyi István University; Department of Mathematics and Computational Sciences; Győr Hungary
4. Applied Mathematics Research Laboratory, Computer and Automation Research Institute; Hungarian Academy of Sciences; Budapest Hungary