1. School of Software Engineering, Beijing University of Technology, Beijing, China
2. School of Computer Science and Technology, Xinjiang University, Ürümqi, Xinjiang, China
3. University Institute of Information Technology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
4. Faculty of Computing and Artificial Intelligence, Air University, Islamabad, Pakistan
5. Industrial Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia