Validating HODA with Classical Clustering Techniques using Microarray Gene Expression Data. - Mohammed Essam Khalifa; Taysir Hassan A. Soliman; Huda Amin Maghawry (DMIN, 2007)

Building road segments and detecting turns from GPS tracks. - Mahmoud Ezzat; Mahmoud Attia Sakr; Rania Elgohary; Mohammed Essam Khalifa (J. Comput. Sci., 2018)