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ALDT
2009
Springer
110views Algorithms» more  ALDT 2009»
16 years 1 months ago
Manipulating Tournaments in Cup and Round Robin Competitions
In sports competitions, teams can manipulate the result by, for instance, throwing games. We show that we can decide how to manipulate round robin and cup competitions, two of the ...
Tyrel Russell, Toby Walsh
ISAAC
2007
Springer
124views Algorithms» more  ISAAC 2007»
16 years 28 days ago
Approximating the Crossing Number of Toroidal Graphs
Abstract. CrossingNumber is one of the most challenging algorithmic problems in topological graph theory, with applications to graph drawing and VLSI layout. No polynomial time con...
Petr Hlinený, Gelasio Salazar
COMPGEOM
2006
ACM
16 years 23 days ago
How slow is the k-means method?
The k-means method is an old but popular clustering algorithm known for its observed speed and its simplicity. Until recently, however, no meaningful theoretical bounds were known...
David Arthur, Sergei Vassilvitskii
ICNC
2005
Springer
16 years 8 days ago
Representation of a Physio-psychological Index Through Constellation Graphs
Fingertip pulsations (plethysmograms) were found to obey chaotic dynamics [1]. We applied chaos theory to analysis of the time series of plethysmograms under various human physio-p...
Mayumi Oyama-Higa, Tiejun Miao
COCO
1998
Springer
103views Algorithms» more  COCO 1998»
15 years 11 months ago
Nonrelativizing Separations
We show that MAEXP, the exponential time version of the Merlin-Arthur class, does not have polynomial size circuits. This significantly improves the previous known result due to K...
Harry Buhrman, Lance Fortnow, Thomas Thierauf