1. Network Center, Sanming University, Sanming 365004, China
2. School of Information and Engineering, Sanming University, Sanming 365004, China
3. Faculty of Computer Sciences and Informatics, Amman Arab University, Amman 11953, Jordan
4. School of Computer Science, Universiti Sains Malaysia, Penang, Malaysia
5. School of Computer Science and Technology, Hainan University, Haikou 570228, China
6. School of Education and Music, Sanming University, Sanming 365004, China
7. Department of Management Information System, College of Business Administration, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia