1. MARS Research Unit, Laboratory, Higher Institute of Computer and Communication Techniques, University of Sousse, 4011 Hammem-Sousse, Tunisia
2. MARS Research Unit, Department of Applied Computer Science, University of Sousse, National School of Engineers of Sousse, Technopole de Sousse, Cité Hammam Maarouf, 4054 Sousse, Tunisia
3. LAMIH Laboratory of Industrial and Human Automation, Mechanics and Computer Science, University of Valenciennes and Hainaut-Cambresis, 59313 Valenciennes, France