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» Approximation Algorithms for Clustering Problems
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STOC
2010
ACM
295views Algorithms» more  STOC 2010»
15 years 11 months ago
Approximation Schemes for Steiner Forest on Planar Graphs and Graphs of Bounded Treewidth
We give the first polynomial-time approximation scheme (PTAS) for the Steiner forest problem on planar graphs and, more generally, on graphs of bounded genus. As a first step, w...
MohammadHossein Bateni, MohammadTaghi Hajiaghayi a...
SODA
2010
ACM
171views Algorithms» more  SODA 2010»
16 years 3 months ago
Coresets and Sketches for High Dimensional Subspace Approximation Problems
We consider the problem of approximating a set P of n points in Rd by a j-dimensional subspace under the p measure, in which we wish to minimize the sum of p distances from each p...
Dan Feldman, Morteza Monemizadeh, Christian Sohler...
IWOCA
2009
Springer
112views Algorithms» more  IWOCA 2009»
15 years 10 months ago
The Guarding Problem - Complexity and Approximation
T. V. Thirumala Reddy, D. Sai Krishna, C. Pandu Ra...
ALGORITHMICA
2011
14 years 9 months ago
Approximating Minimum-Power Degree and Connectivity Problems
Guy Kortsarz, Vahab S. Mirrokni, Zeev Nutov, Elena...
ECCV
2002
Springer
16 years 8 months ago
On Affine Invariant Clustering and Automatic Cast Listing in Movies
Abstract We develop a distance metric for clustering and classification algorithms which is invariant to affine transformations and includes priors on the transformation parameters...
Andrew W. Fitzgibbon, Andrew Zisserman