Second CGC Workshop on
Computational Geometry


Program and Abstracts

For papers with multiple authors, the speaker's name is italicized. Each title is a link to a short abstract. Separate pointers are given to full papers when they are available. (Please note, however, that most of these are preliminary versions of papers that will be published in their final form elsewhere.)

Saturday, October 18

08:15 Breakfast
08:45 Opening remarks
09:00 Jonathan Cohen, Dinesh Manocha, and Marc Olano
Simplifying Polygonal Models Using Successive Mappings
[Full paper]
09:15 Steven Fortune
Vertex-Rounding a Three-Dimensional Polyhedral Subdivision
[Full paper]
09:30 Gill Barequet, Danny Chen, Ovidiu Daescu, and Michael T. Goodrich
Efficiently Approximating Polygonal Paths in Three Dimensions
09:45 Short break
09:55 Invited Talk: Phil Emmerman
Advanced Battlefield Processing
10:45 Coffee break
11:15 Nilo Stolte and Arie Kaufman
Discrete Implicit Surface Models using Interval Arithmetics
[Full paper]
11:30 Cláudio Silva and Joe Mitchell
Lazy Sweep Ray Casting: A Fast Scanline Algorithm for Rendering Irregular Grids
11:45 John Keyser, Shankar Krishnan, and Dinesh Manocha
Efficient and Accurate B-rep Generation of Low Degree Sculptured Solids Using Exact Arithmetic
12:00 Invited Talk: Ken Fast
Some Issues Facing Commercial End-Users of Large-Scale CAD Visualization
12:30 Lunch
02:00 Piotr Berman and Bhaskar DasGupta
On Approximating the Corner Cover Problem
[Full paper]
02:15 Jan Vahrenhold and Klaus H. Hinrichs
Fast and Simple External-Memory Planar Point-Location
[Full paper]
02:30 Yi-Jen Chiang and Cláudio T. Silva
I/O Optimal Isosurface Extraction in Scientific Visualization
[Full paper]
02:45 Hassan Karimi
Optimal Routing Algorithms in Geographic Information Systems (cancelled)
03:00 Short break
03:10 Invited Talk: Chris Hoffmann
Geometric Constraint Solving
04:00 Coffee break
04:30 Bryan Cook, Lydia E. Kavraki, and Rajeev Motwani
Efficient Clustering of Molecular Conformations
04:45 Sylvain Lazard
Shortest Paths of Bounded Curvature in a Convex Polygon
05:00 Karl-Friedrich Böhringer, Bruce Randall Donald, and Dan Halperin
On the Area Bisectors of a Polygon
[Full paper]
05:15 Moses Charikar, Dan Halperin, and Rajeev Motwani
The Dynamic Servers Problem
05:30 Adjourn for dinner

Sunday, October 19

08:30 Breakfast
09:00 Invited Talk: Paul Tanenbaum
Applications of Computational Geometry in Army Research and Development
09:50 Short break
10:00 Piotr Indyk, Rajeev Motwani, Prabhakar Raghavan, and Santosh Vempala
Locality-Preserving Hashing in Multidimensional Spaces
[Full paper]
10:15 Christos Levcopolous, Giri Narasimhan, and Michiel Smid
Fault-Tolerant Spanners
10:30 David M. Mount and Sunil Arya
ANN: A Library for Approximate Nearest Neighbor Searching
10:45 Coffee break
11:15 David Eppstein and Marshall Bern
Quadrilateral Meshing by Circle Packing
[Full paper]
11:30 Gregory S. Chirikjian
Recursive Semi-Regular Circle Packings on the Sphere
11:45 Thomas Fevens, Henk Meijer, and David Rappaport
Minimum Weight Convex Quadrilateralization of a Constrained Point Set
[Full paper]
12:00 Lunch
01:30 Invited Talk: Seth Teller
Application Models and Challenges for Computational Geometry
02:20 Short break
02:30 Therese C. Biedl
The Three-Phase Method and Applications
[Full paper]
02:45 Stina S. Bridgeman, Jody Fanto, Ashim Garg, Roberto Tamassia, and Luca Vismara
Interactive Orthogonal Graph Drawing
[Full paper]
03:00 Konstantinos G. Kakoulis and Ioannis G. Tollis
An Algorithm for Labeling Edges of Hierarchical Drawings
[Full paper]
03:15 Gill Barequet, Matthew T. Dickerson, and Robert L. Scot Drysdale
On 2-Point Site Voronoi Diagrams
03:30 Coffee break
04:00 Li Zhang, Harish Devarajan, Julien Basch, and Piotr Indyk
Probabilistic Analysis for Combinatorial Functions of Moving Points
04:15 Piotr Indyk, Rajeev Motwani, and Suresh Venkatasubramanian
Geometric Matching under Noise: Combinatorial Bounds and Algorithms
04:30 Iosif I. Vaisman, Alexander Tropsha, and Weifan Zheng
Tessellated Molecules: Computational Geometry of Chemical and Biological Structure
04:45 Closing remarks


Center for Geometric Computing, Dept. of Computer Science, Duke University (cgc@cs.duke.edu) 21 Oct 97