1. Department of Software Engineering, University of Management and Technology, Lahore 54770, Pakistan
2. Department of Computer Engineering, National University of Technology, Islamabad 44000, Pakistan
3. Institute of Computer Science and Information Technology, The Women University Multan, Multan 60650, Pakistan
4. Department of Computer Science, University of Bremen, 28359 Bremen, Germany
5. Faculty of Graduate Studies for Statistical Research, Cairo University, Giza 12613, Egypt