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» The Shortcut Problem - Complexity and Approximation
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STOC
2009
ACM
182views Algorithms» more  STOC 2009»
16 years 4 months ago
Approximating edit distance in near-linear time
We show how to compute the edit distance between two strings of length n up to a factor of 2 ~O( log n) in n1+o(1) time. This is the first sub-polynomial approximation algorithm f...
Alexandr Andoni, Krzysztof Onak
140
Voted
SODA
2010
ACM
248views Algorithms» more  SODA 2010»
16 years 26 days ago
Approximating the Crossing Number of Graphs Embeddable in Any Orientable Surface
The crossing number of a graph is the least number of pairwise edge crossings in a drawing of the graph in the plane. We provide an O(n log n) time constant factor approximation al...
Petr Hlineny, Markus Chimani
GECCO
2005
Springer
117views Optimization» more  GECCO 2005»
15 years 9 months ago
Extending XCSF beyond linear approximation
XCSF is the extension of XCS in which classifier prediction is computed as a linear combination of classifier inputs and a weight vector associated to each classifier. XCSF can...
Pier Luca Lanzi, Daniele Loiacono, Stewart W. Wils...
105
Voted
SDM
2007
SIAM
81views Data Mining» more  SDM 2007»
15 years 4 months ago
A PAC Bound for Approximate Support Vector Machines
We study a class of algorithms that speed up the training process of support vector machines (SVMs) by returning an approximate SVM. We focus on algorithms that reduce the size of...
Dongwei Cao, Daniel Boley
152
Voted
ML
2012
ACM
385views Machine Learning» more  ML 2012»
13 years 11 months ago
An alternative view of variational Bayes and asymptotic approximations of free energy
Bayesian learning, widely used in many applied data-modeling problems, is often accomplished with approximation schemes because it requires intractable computation of the posterio...
Kazuho Watanabe