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SODA
1993
ACM
85views Algorithms» more  SODA 1993»
15 years 28 days ago
On Traversing Layered Graphs On-line
The following bounds on the competitive ratios of deterministic and randomized on-line algorithms for traversing width-w layered graphs are obtained.
H. Ramesh
JGTOOLS
2006
72views more  JGTOOLS 2006»
14 years 11 months ago
Efficient Generation of Poisson-Disk Sampling Patterns
Poisson Disk sampling patterns are of interest to the graphics community because their blue-noise properties are desirable in sampling patterns for rendering, illumination, and ot...
Thouis R. Jones
COMPGEOM
2010
ACM
15 years 4 months ago
Adding one edge to planar graphs makes crossing number hard
A graph is near-planar if it can be obtained from a planar graph by adding an edge. We show that it is NP-hard to compute the crossing number of near-planar graphs. The main idea ...
Sergio Cabello, Bojan Mohar
83
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COMPGEOM
2000
ACM
15 years 4 months ago
Kinetic connectivity for unit disks
We describe a kinetic data structure (KDS) that maintains the connected components of the union of a set of unit-radius disks moving in the plane. We assume that the motion of eac...
Leonidas J. Guibas, John Hershberger, Subhash Suri...
ALGORITHMICA
2005
84views more  ALGORITHMICA 2005»
14 years 11 months ago
Optimal Read-Once Parallel Disk Scheduling
An optimal prefetching and I/O scheduling algorithm L-OPT, for parallel I/O systems, using a read-once model of block references is presented. The algorithm uses knowledge of the n...
Mahesh Kallahalla, Peter J. Varman