Walied Othman "If we knew what it was we were doing, it would not be called research, would it?" (Albert Einstein) PhD Computer Science Department University of California, Santa Cruz

Office: E2-261 Tel: +1 831 459 1775 E-mail: othmanw ad soe.ucsc.edu

• Area of research: database theory | logic | constraint databases | spatio-temporal databases | GIS
• Publications DBLP.
• My resume.
• Papers: (Not all links are not operational, email me for a copy)
  • Trajectory Databases: Data Models, Uncertainty and Complete Query Languages. (JCSS, to appear)
  • Modeling uncertainty of moving objects on road networks via space-time prisms (IJGIS 2009, Vol. 23, Issue 9, pp 1095-1117)
  • An analytic solution to the alibi query in the space-time prism model for moving object data (IJGIS, to appear)
  • Anchor uncertainty and space-time prisms on road networks (IJGIS, to appear)
• PhD Thesis:
  • Uncertainty management in trajectory databases
• Software (Mathematica, download extra needed library here):
  • Computing the Alibi Query
  • Visualizing space-time prisms on Road Networks
  • Visualizing space-time prisms and their intersections on Road Networks
  • Visualizing space-time prisms with uncertain anchors and their fractions on Road Networks

• Spatial Databases@Hasselt University

• leisure coding
• rockclimbing