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COMPGEOM
2007
ACM
15 years 10 months ago
Querying approximate shortest paths in anisotropic regions
We present a data structure for answering approximate shortest path queries in a planar subdivision from a fixed source. Let 1 be a real number. Distances in each face of this sub...
Siu-Wing Cheng, Hyeon-Suk Na, Antoine Vigneron, Ya...
COMPGEOM
2007
ACM
15 years 10 months ago
Traversing a set of points with a minimum number of turns
Given a finite set of points S in Rd , consider visiting the points in S with a polygonal path which makes a minimum number of turns, or equivalently, has the the minimum number o...
Sergey Bereg, Prosenjit Bose, Adrian Dumitrescu, F...
COMPGEOM
2007
ACM
15 years 10 months ago
Computing the exact arrangement of circles on a sphere, with applications in structural biology: video
The Bentley-Ottmann (BO) algorithm, initially designed to report the intersection points of line-segments in the plane, is the prototypical sweep-line algorithm. This video presen...
Frédéric Cazals, Sébastien Lo...
COMPGEOM
2004
ACM
15 years 10 months ago
Spacetime meshing with adaptive refinement and coarsening
We propose a new algorithm for constructing finite-element meshes suitable for spacetime discontinuous Galerkin solutions of linear hyperbolic PDEs. Given a triangular mesh of som...
Reza Abedi, Shuo-Heng Chung, Jeff Erickson, Yong F...
CAAN
2006
Springer
15 years 10 months ago
Scheduling of a Smart Antenna: Capacitated Coloring of Unit Circular-Arc Graphs
We consider scheduling problems that are motivated by an optimization of the transmission schedule of a smart antenna. In these problems we are given a set of messages and a confl...
Guy Even, Shimon Shahar