Affiliation: | 1. Computer Science Department, Badji Mokhtar-Annaba University, P.O. Box 12, 23000 Annaba, Algeria;2. LabSTIC Laboratory, Guelma University, P.O. Box 401, 24000 Guelma, Algeriahalimi@labstic.net;4. LabGED Laboratory, Badji Mokhtar-Annaba University, P.O. Box 12, 23000 Annaba, Algeria;5. Computer Science Department, Nice Sophia Antipolis University, Sophia Antipolis, France;6. I3S Laboratory, UMR 7271 UNS – CNRS, P.O. Box 145, F-06903 Sophia Antipolis Cedex, France |