1. Laboratory of Sciences and Techniques of Automatic & Computer Engineering (Lab-STA), University of Sfax, ENIS, P.O. Box 1173, Sfax 3038, Tunisia
2. Department of Statistics and Operations Research, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
3. ENSIIE, University of Evry-Val-d’Essonne, 1 Square de la Résistance 91025, Évry-Courcouronnes Cedex, France
4. Department of Mathematics, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia