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» Approximation Algorithms for Clustering Problems
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ISAAC
2009
Springer
116views Algorithms» more  ISAAC 2009»
16 years 1 months ago
Practical Discrete Unit Disk Cover Using an Exact Line-Separable Algorithm
Given m unit disks and n points in the plane, the discrete unit disk cover problem is to select a minimum subset of the disks to cover the points. This problem is NP-hard [11] and ...
Francisco Claude, Reza Dorrigiv, Stephane Durocher...
TVCG
2011
175views more  TVCG 2011»
15 years 1 months ago
Parallel Iteration to the Radiative Transport in Inhomogeneous Media with Bootstrapping
—This paper presents a fast parallel method to solve the radiative transport equation in inhomogeneous participating media. We apply a novel approximation scheme to find a good ...
László Szirmay-Kalos, Gabor Liktor, ...
SPAA
2009
ACM
16 years 7 months ago
Brief announcement: parameterized maximum and average degree approximation in topic-based publish-subscribe overlay network desi
Designing an overlay network for publish/subscribe communication in a system where nodes may subscribe to many different topics of interest is of fundamental importance. For scala...
Melih Onus, Andréa W. Richa
161
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ALGORITHMICA
2010
112views more  ALGORITHMICA 2010»
15 years 6 months ago
On Metric Clustering to Minimize the Sum of Radii
Abstract Given an n-point metric (P,d) and an integer k > 0, we consider the problem of covering P by k balls so as to minimize the sum of the radii of the balls. We present a r...
Matt Gibson, Gaurav Kanade, Erik Krohn, Imran A. P...
CIVR
2005
Springer
123views Image Analysis» more  CIVR 2005»
16 years 8 days ago
Region-Based Image Clustering and Retrieval Using Multiple Instance Learning
Multiple Instance Learning (MIL) is a special kind of supervised learning problem that has been studied actively in recent years. We propose an approach based on One-Class Support ...
Chengcui Zhang, Xin Chen