Khalid Nahar1, Husni AlMuhtaseb1, Wasfi AlKhatib1, Moustafa Elshafei1, and Mansour Alghamdi2 1College of Computer Science and Engineering, King F ahd University of
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