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Southern Oregon University

Professor of Computer Science

Office: CS 219
Phone: (541) 552-6978
Research website: Southern Terra Cognita Laboratory

Education & Experience

Curriculum Vitae

Ph.D. in Computer and Information Science, 2005, University of Oregon
Dissertation: Discrete Global Grid Systems: A New Class of Geospatial Data Structures

M.S. in Computer Science, 1995, University of Colorado at Colorado Springs
Thesis: A Novel Approach to Inverse Kinematics for Positioning Realistic Animated Human Agents

B.A. in Mathematics and Philosophy, 1984, Bucknell University

Teaching and Graduate Program Coordinator


Dr. Sahr is an internationally recognized expert in discrete global grids, which are a new approach to representing location on the earth's surface on computers. In November 2013 Dr. Sahr presented a keynote speech at an International Workshop on Global Spatial Grids in Xuzhou, China, entitled "Global Grids and the Future of Geospatial Computing", in which he discussed the pivotal role that global grids are poised to play in the next generation of digital earth applications.  

Dr. Sahr created and maintains Southern Terra Cognita Laboratory, a research website for Discrete Global Grid (DGG), with software and resources provided by the Department of Computer Science of Southern Oregon University.