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» A Simple Streaming Algorithm for Minimum Enclosing Balls
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SODA
2008
ACM
184views Algorithms» more  SODA 2008»
13 years 7 months ago
Coresets, sparse greedy approximation, and the Frank-Wolfe algorithm
The problem of maximizing a concave function f(x) in a simplex S can be solved approximately by a simple greedy algorithm. For given k, the algorithm can find a point x(k) on a k-...
Kenneth L. Clarkson
ESA
2008
Springer
137views Algorithms» more  ESA 2008»
13 years 8 months ago
An Almost Space-Optimal Streaming Algorithm for Coresets in Fixed Dimensions
We present a new streaming algorithm for maintaining an -kernel of a point set in Rd using O((1/(d-1)/2 ) log(1/)) space. The space used by our algorithm is optimal up to a small ...
Hamid Zarrabi-Zadeh
CCCG
2009
13 years 4 months ago
Streaming 1-Center with Outliers in High Dimensions
We study the 1-center problem with outliers in highdimensional data streams. The problem definition is as follows: given a sequence of n points in d dimensions (with d arbitrarily...
Hamid Zarrabi-Zadeh, Asish Mukhopadhyay
CORR
2010
Springer
128views Education» more  CORR 2010»
13 years 6 months ago
Sublinear Optimization for Machine Learning
Abstract--We give sublinear-time approximation algorithms for some optimization problems arising in machine learning, such as training linear classifiers and finding minimum enclos...
Kenneth L. Clarkson, Elad Hazan, David P. Woodruff
APPROX
2011
Springer
234views Algorithms» more  APPROX 2011»
12 years 6 months ago
Streaming Algorithms with One-Sided Estimation
Abstract. We study the space complexity of randomized streaming algorithms that provide one-sided approximation guarantees; e.g., the algorithm always returns an overestimate of th...
Joshua Brody, David P. Woodruff