Saad Abid2, Zhiyong Li1, and Renfa Li1 1College of Information Science and Engineering, Hun an University, China 2Department of Computer Science and Informatics, Al- Mansour University College, Iraq
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