A.A. El-Harby is an assistant professor in the Department of Maths. and Computer Science, Damietta, Faculty of Science, Mansoura University. He received his B.Sc. degree in Computer Science from the Faculty of science, Suez Canal University, his M.Sc. degree in computer science from Damietta, faculty of science at Mansoura University, and his Ph.D. in computer science from Keele University, UK. His research interests include image processing, artificial intelligent, neural networks, remote sensing, fuzzy logic, and NLP. Address: Department of Maths., Faculty of Science, New Damietta 34517. email: elharby@yahoo.co.uk