Geospatial link discovery with human in the loop / Abdullah Fathi Ahmed Ahmed ; 1. Reviewer: Prof. Dr. Axel-Cyrille Ngonga Ngomo, Department of Computer Science (Paderborn University) ; 2. Reviewer: Prof. Dr. Alsayed Algergawy, Department of Computer Science (University of Passau) ; Supervisors. Prof. Dr. Axel-Cyrille Ngonga Ngomo and Dr. Mohamed Ahmed Sherif