1. Information Technology Department, Faculty of Computer and Information, Cairo University, 5 Ahmed Zewal Street, Orman, Giza 12613, Egypt
2. Quantitative and Information System Department, College of Business Administration, Kuwait University, P.O. Box 5468, Safat 13055, Kuwait
3. Quantitative Methods and Information Systems Department, College of Business Administration, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
4. Department of Solar and Space Research, National Research Institute of Astronomy and Geophysics, Helwan, Cairo 11421, Egypt