I'm PH. Degree student in Aleppo-University. My thesis about "Studing Hidden Markov Models and it's Applications in Classification " I'm working on R ,E-views and SPSS. I have been teaching in Aleppo-University since 9 years " Time Series, Stochastic Processes, Sampling Theory, Services Theory, principles of VB6, principles of C++, principles of VC++"