1. Department of Computer Science, Lahore College for Women University, Jail Road, Lahore 54000, Pakistan
2. Computer Engineering Department, Ankara University, Gölbaşı, 06830 Ankara, Turkey
3. Department of Literature, Film and Theater Studies, University of Essex, Colchester, Essex CO4 3SQ, UK
4. School of Computer Science and Electronic Engineering, University of Essex, Colchester, Essex CO4 3SQ, UK