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Leonidas John Guibas (Greek: Λεωνίδας Γκίμπας) is a professor of computer science at Stanford University, where he heads the geometric computation group and is a member of the computer graphics and artificial intelligence laboratories. Guibas was a student of Donald Knuth at Stanford, where he received his Ph.D. in 1976.[1] He has worked for several industrial research laboratories, and joined the Stanford faculty in 1984. He was program chair for the ACM Symposium on Computational Geometry in 1996,[2] is a Fellow of the ACM,[3] and was awarded the ACM–AAAI Allen Newell award for 2007 “for his pioneering contributions in applying algorithms to a wide range of computer science disciplines.“[4] He has Erdős number 2 due to his collaborations with Boris Aronov, Andrew Odlyzko, János Pach, Richard M. Pollack, Endre Szemerédi, and Frances Yao.[5] The research contributions he is known for include finger trees, red-black trees, fractional cascading, the Guibas–Stolfi algorithm for Delaunay triangulation, an optimal data structure for point location, the quad-edge data structure for representing planar subdivisions, Metropolis light transport, and kinetic data structures for keeping track of objects in motion.


^ Leonidas John (Ioannis) Guibas at the Mathematics Genealogy Project..
^ Program Committees from the Symposium on Computational Geometry, Computational Geometry Steering Committee.
^ ACM Fellow award citation.
^ ACM/AAAI Allen Newell Award Recognizes Leonidas Guibas for Algorithms Advancing CS Fields, ACM, 2008; "Guibas Receives ACM/AAAI Award for Algorithm Development", Dr. Dobb's, March 4, 2008.
^ Erdos number project.

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