1. School of Politics and Public Administration, Collaborative Innovation Center of National Security Research, Xinjiang University, Urumuqi 830046, China
2. Department of Computer Science, University of Swabi, Khyber Pakhtunkhwa, Pakistan
3. School of Management and Economics, Beijing Institute of Technology, Bejing 100081, China
4. Department of Computer Science, Islamia College University, Peshawar, Pakistan