1. Centro Singular de Investigacion en Tecnoloxias Intelixentes (CiTIUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
2. College of Computing, Sungkyunkwan University, Seoul, Republic of Korea
3. Department of Computer Science, College of Computers and Information Technology, Taif University, P. O. Box 11099, Taif 21944, Saudi Arabia
4. Faculty of Computer Science and Engineering, Hodeidah University, Al Hudaydah, Yemen
5. Information Systems Department, Faculty of Computers and Information, Assiut University, Assiut, Egypt
6. Faculty of Computers and Artificial Intelligence, South Valley University, Hurghada, Egypt