1. National Engineering School of Gabes (ENIG), University of Gabes,Research Team in Intelligent Machines (RTIM)
2. IRT - SystemX,Palaiseau,France,91120
3. Universty of Monastir,Faculty of Medicine of Monastir,Monastir,Tunisie,5000
4. Institut Polytechnique de Paris,Samovar, Telecom SudParis,Palaiseau,France,91120