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| Research |
| I am a member of the Algorithms and Theory Group at the University of Maryland. I do research on the design, analysis, and implementation of data structures and algorithms for geometric problems, particularly problems with applications in areas such as image processing, pattern recognition, information retrieval, and computer graphics. |
| My Publications | Biographical sketch | Vita |
| Software Projects |
 ANN: A library for approximate nearest neighbor searching. |
| ALTS: An Adaptive Algorithm for the LTS Linear Estimator. |
| KMeans: Efficient algorithms for k-means clustering. |
| ISODATA: Efficient implementation of the ISODATA/ISOCLUS clustering algorithm. |
| Education |
| Ph.D. (1983), Computer Science, Purdue University |
| B.S. (1977), Computer Science, Purdue University |
| Teaching |
This semester (Fall 2018) I am not teaching.
| Here are some links to some course resources and lecture notes. |
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Data Structures and Algorithms in C++ (2nd Edition): A textbook I wrote with
Mike Goodrich and
Roberto Tamassia, published by
Wiley. |
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CMSC 451: Design and Analysis of Computer Algorithms, Fall 2017. |
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CMSC 425: Game Programming, Fall 2018.
(Check out these cool videos from the class final projects.) |
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CMSC 754: Computational Geometry, Fall 2016. |
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CMSC 427: Computer Graphics, Fall 2013.
(Here are some neat images from previous semesters.) |
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CMSC 131: Object-Oriented Programming I, Fall 2004. |
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CMSC 420: Data Structures, Spring 2001. |
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CMSC 251: Algorithms, Spring 1998. |
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Independent Study Projects that I have supervised. |
| Recent Professional Service |
| Committees: | Computational Geometry Steering Committee | Member (2016-2018) |
| Editorial Boards: | ||
| ACM Trans. on Spatial Algorithms and Systems (ACM TSAS) | Senior Associate Editor (2013 - present) | |
| Computational Geometry: Theory and Applications (CGTA) | Editorial Board Member (2012 - present) | |
| Internat. J. of Computational Geometry and Applications (IJCGA) | Editorial Board Member (2008 - present) | |
| ACM Trans. on Mathematical Software (ACM TOMS) | Editorial Board Member (2006 - 2018) | |
| Pattern Recognition | Editorial Board Member (1999 - 2006) | |
| Conferences: | ||
| SoCG 2018 | 34th International Symposium on Computational Geometry (Program committee). | |
| WALCOM 2017 | 11th International Conference and Workshops on Algorithms and Computation (Program committee). | |
| Proximity 2015 | Workshop on Multi-dimensional Proximity Problems (Co-organizer). | |
| SISAP 2015 | 8th International Conference on Similarity Search and Applications (Program committee). | |
| SODA 2014 | ACM-SIAM Symposium on Discrete Algorithms, 2014 (Program committee). | |
| WALCOM 2013 | 7th International Workshop on Algorithms and Computation, 2013 (Program committee). | |
| FWCG 2012 | 22nd Annual Fall Workshop on Computational Geometry (Workshop chair). | |
| SIBGRAPI 2011 | Conference on Graphics, Patterns and Images, 2011 (Program committee). | |
| SoCG 2011 | 27th Annual Symposium on Computational Geometry, 2011 (Program committee). | |
| ALENEX'11 | Workshop on Algorithm Engineering and Experiments, 2011 (Program committee). | |
| ISAAC 2010 | The 21st International Symposium on Algorithms and Computation, 2010 (Program committee). | |
| STOC 2009 | 41st ACM Symposium on Theory of Computing, 2009 (Conference Co-Chair). | |
| SoCG 2008 | 24th Annual Symposium on Computational Geometry, 2008 (Conference Chair). | |
| COCOON'06 | 12th Annual International Computing and Combinatorics Conference, 2006 (Program committee). | |
| SPIE EI'06 | Vision Geometry XIV at SPIE's Electronic Imaging, 2006 (Program co-chair). | |
| SoCG 2003 | ACM Symposium on Computational Geometry, 2003 (Program co-chair). | |
| ALENEX'02 | 4th Workshop on Algorithm Engineering and Experiments, 2002 (Program co-chair). | |
| ESA'02 | 10th European Symposium on Algorithms, 2002 (Program committee). |
This "Last-updated" sentence was last updated on May 2019.
