1. CES Lab, National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia & Higher Institute of Technological Studies of Sfax, Tunisia
2. Higher Institute of Computer Science of Mahdia, University of Monastir, Mahdia, Tunisia & CES Lab, National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia
3. Higher Institute of Technological Studies of Sfax, Tunisia
4. CES Lab, National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia