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CCCG
2008
15 years 1 months ago
On distinct distances among points in general position and other related problems
A set of points in the plane is said to be in general position if no three of them are collinear and no four of them are cocircular. If a point set determines only distinct vector...
Adrian Dumitrescu
CCCG
2008
15 years 1 months ago
An Efficient Query Structure for Mesh Refinement
We are interested in the following mesh refinement problem: given an input set of points P in Rd , we would like to produce a good-quality triangulation by adding new points in P....
Benoît Hudson, Duru Türkoglu
CCCG
2008
15 years 1 months ago
Computing the Stretch Factor of Paths, Trees, and Cycles in Weighted Fixed Orientation Metrics
Let G be a graph embedded in the L1-plane. The stretch factor of G is the maximum over all pairs of distinct vertices p and q of G of the ratio LG 1 (p, q)/L1(p, q), where LG 1 (p...
Christian Wulff-Nilsen
CCCG
2008
15 years 1 months ago
Guaranteed Voronoi Diagrams of Uncertain Sites
In this paper we investigate the Voronoi diagram that is induced by a set of sites in the plane, where each site's precise location is uncertain but is known to be within a p...
Jeff Sember, William Evans
CCCG
2008
15 years 1 months ago
Achieving Spatial Adaptivity while Finding Approximate Nearest Neighbors
We present the first spatially adaptive data structure that answers approximate nearest neighbor (ANN) queries to points that reside in a geometric space of any constant dimension...
Jonathan Derryberry, Don Sheehy, Maverick Woo, Dan...