Sciweavers

COMPGEOM
2006
ACM
14 years 3 months ago
Minimum weight triangulation is NP-hard
A triangulation of a planar point set S is a maximal plane straight-line graph with vertex set S. In the minimum weight triangulation (MWT) problem, we are looking for a triangula...
Wolfgang Mulzer, Günter Rote
COMPGEOM
2006
ACM
14 years 3 months ago
Lower bounds on locality sensitive hashing
Given a metric space (X, dX), c ≥ 1, r > 0, and p, q ∈ [0, 1], a distribution over mappings H : X → N is called a (r, cr, p, q)-sensitive hash family if any two points in...
Rajeev Motwani, Assaf Naor, Rina Panigrahy
COMPGEOM
2006
ACM
14 years 3 months ago
On realistic terrains
Esther Moet, Marc J. van Kreveld, A. Frank van der...
COMPGEOM
2006
ACM
14 years 3 months ago
Tight bounds for connecting sites across barriers
David W. Krumme, Eynat Rafalin, Diane L. Souvaine,...
COMPGEOM
2006
ACM
14 years 3 months ago
Envelope surfaces
We construct a class of envelope surfaces in Rd , more precisely envelopes of balls. An envelope surface is a closed C1 (tangent continuous) manifold wrapping tightly around the u...
Nico Kruithof, Gert Vegter
COMPGEOM
2006
ACM
14 years 3 months ago
On overlays and minimization diagrams
The overlay of 2 ≤ m ≤ d minimization diagrams of n surfaces in Rd is isomorphic to a substructure of a suitably constructed minimization diagram of mn surfaces in Rd+m−1 . ...
Vladlen Koltun, Micha Sharir
COMPGEOM
2006
ACM
14 years 3 months ago
Colored intersection searching via sparse rectangular matrix multiplication
In a Batched Colored Intersection Searching Problem (CI), one is given a set of n geometric objects (of a certain class). Each object is colored by one of c colors, and the goal i...
Haim Kaplan, Micha Sharir, Elad Verbin
COMPGEOM
2006
ACM
14 years 3 months ago
Illustrating the streaming construction of 2D delaunay triangulations
Martin Isenburg, Yuanxin Liu, Jonathan Richard She...
COMPGEOM
2006
ACM
14 years 3 months ago
Refolding planar polygons
Abstract This paper describes an algorithm for generating a guaranteed intersectionfree interpolation sequence between any pair of compatible polygons. Our algorithm builds on prio...
Hayley N. Iben, James F. O'Brien, Erik D. Demaine