1. Computer Technologies Department, National Institute of Applied Sciences and Technology-University of Carthage, Tunis, Tunisia
2. Computer Technologies Department, National Institute of Applied Sciences and Technology-University of Carthage, Tunis, Tunisia, Institute of Industrial Technologies and Automation-Consiglio, Nazionale delle Ricerche, Rome, Italy, & Xidjian University, Xi’an, China
3. FST Faculty, University of Tunis El Manar, Tunis, Tunisia