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» The Guarding Problem - Complexity and Approximation
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FOCS
2000
IEEE
15 years 10 months ago
Hierarchical Placement and Network Design Problems
In this paper, we give the first constant-approximations for a number of layered network design problems. We begin by modeling hierarchical caching, where caches are placed in la...
Sudipto Guha, Adam Meyerson, Kamesh Munagala
FSTTCS
2010
Springer
15 years 4 months ago
Combinatorial Problems with Discounted Price Functions in Multi-agent Systems
ABSTRACT. Motivated by economic thought, a recent research agenda has suggested the algorithmic study of combinatorial optimization problems under functions which satisfy the prope...
Gagan Goel, Pushkar Tripathi, Lei Wang
FCT
2005
Springer
15 years 11 months ago
A Faster and Simpler 2-Approximation Algorithm for Block Sorting
Block sorting is used in connection with optical character recognition (OCR). Recent work has focused on finding good strategies which perform well in practice. Block sorting is N...
Wolfgang W. Bein, Lawrence L. Larmore, Linda Moral...
ISMIR
2004
Springer
106views Music» more  ISMIR 2004»
15 years 11 months ago
Finding Approximate Repeating Patterns from Sequence Data
In this paper, an application of feature extraction from music data is first introduced to motivate our research of finding approximate repeating patterns from sequence data. An a...
Jia-Lien Hsu, Arbee L. P. Chen, Hung-Chen Chen
MOC
1998
111views more  MOC 1998»
15 years 6 months ago
The approximation power of moving least-squares
A general method for near-best approximations to functionals on Rd, using scattered-data information is discussed. The method is actually the moving least-squares method, presented...
David Levin