PAUL: proactive automated mobile user-centric content deLivery. - Mohamed A. Abd ElMohsen; Omar K. Shoukry; Hesham El Gamal; Tamer A. ElBatt; Nayer M. Wanas; Mohamed Abdel Raouf; Mostafa A. Zakaria; Ahmed I. Abdelkader; Hakem M. Zaied (MobiSys, 2013)