1. King Hussein School of Computing Sciences, Princess Sumaya University for Technology, Al-Jubaiha, Amman P.O. Box 1438, Jordan
2. Department of Electrical Engineering, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
3. Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid P.O. Box 3030, Jordan
4. Computer Science Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada