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MOC
1998
73views more  MOC 1998»
14 years 9 months ago
Detecting perfect powers in essentially linear time
This paper (1) gives complete details of an algorithm to compute approximate kth roots; (2) uses this in an algorithm that, given an integer n > 1, either writes n as a perfect ...
Daniel J. Bernstein
ISAAC
2005
Springer
123views Algorithms» more  ISAAC 2005»
15 years 3 months ago
Sampling Unlabeled Biconnected Planar Graphs
We present an expected polynomial time algorithm to generate a 2-connected unlabeled planar graph uniformly at random. To do this we first derive recurrence formulas to count the ...
Manuel Bodirsky, Clemens Gröpl, Mihyun Kang
MA
2010
Springer
150views Communications» more  MA 2010»
14 years 4 months ago
Cokriging for spatial functional data
This work proposes to generalize the method of cokriging when data are spatially sampled curves. A spatial functional linear model is constructed including spatial dependencies be...
David Nerini, Pascal Monestiez, Claude Manté...
IPMI
2001
Springer
15 years 10 months ago
Estimability of Spatio-temporal Activation in fMRI
Event-related functional magnetic resonance imaging (fMRI) is considered as an estimation and reconstruction problem. A linear model of the fMRI system based on the Fourier sampler...
Andre Lehovich, Harrison H. Barrett, Eric Clarkson...
APPROX
2007
Springer
102views Algorithms» more  APPROX 2007»
15 years 4 months ago
Hardness of Embedding Metric Spaces of Equal Size
Abstract. We study the problem embedding an n-point metric space into another n-point metric space while minimizing distortion. We show that there is no polynomial time algorithm t...
Subhash Khot, Rishi Saket