Maryam Lafkih1, Mounia Mikram1, 2, Sanaa Ghouzali1, 3, Mohamed El Haziti1, 4, and Driss Aboutajdine1 1Mohammed V#Agdal University, Morocco 2School of Information Sciences, University of Pitts burgh, Morocco 3Department of Information Technology, King Saud Uni versity, Saudi Arabia 4Higher School of Technology, Morocco
Miroljub Grozdanovic1, Dobrivoje Marjanovic2, and Goran Janackovic3 1Engineering Academy of Serbia, Serbia 2Ei R and D Institute Nis, Serbia 3Faculty of Occupational Safety, University of Nis, Serbia
Abed Ahcène1, 2 and Guerti Mhania1 1Laboratoire Signal et Communications, Ecole Nationa le Polytechnique, Algeria 2Scientific and Technical Research Center for the Development of the Arabic Language, Algeria
Umarani Srikanth1, Uma Maheswari2, Shanthi Palaniswami3, and Arul Siromoney3 1Computer Science and Engineering Department, S.A. E ngineering College, India 2Department of Information Science and Technology, Anna University, India 3Department of Computer Science and Engineering, Ann a University, India