M. Arulmary Research Scholar, Dept. of Comp.Science,Bharatiyar University, Coimbatore.
S.P. Victor, Associate Professor, Dept. of Comp. Science, St. Xavier�s College, Palayamkottai.
A. Heber David, Senior Clinical Scientist, Dr. Agarwal�s Eye Hospital, Vannarpettai, Tirunelveli