Sciweavers

562 search results - page 33 / 113
» Approximation algorithms and hardness of the k-route cut pro...
Sort
View
SODA
2004
ACM
161views Algorithms» more  SODA 2004»
14 years 11 months ago
Approximation schemes for Metric Bisection and partitioning
We design polynomial time approximation schemes (PTASs) for Metric BISECTION, i.e. dividing a given finite metric space into two halves so as to minimize or maximize the sum of di...
Wenceslas Fernandez de la Vega, Marek Karpinski, C...
CATS
2006
14 years 11 months ago
On the Approximability of Maximum and Minimum Edge Clique Partition Problems
We consider the following clustering problems: given a general undirected graph, partition its vertices into disjoint clusters such that each cluster forms a clique and the number...
Anders Dessmark, Jesper Jansson, Andrzej Lingas, E...
FOCS
2009
IEEE
15 years 4 months ago
Symmetry and Approximability of Submodular Maximization Problems
Abstract— A number of recent results on optimization problems involving submodular functions have made use of the ”multilinear relaxation” of the problem [3], [8], [24], [14]...
Jan Vondrák
JACM
1998
88views more  JACM 1998»
14 years 9 months ago
A Threshold of ln n for Approximating Set Cover
Given a collection Ᏺ of subsets of S ϭ {1, . . . , n}, set cover is the problem of selecting as few as possible subsets from Ᏺ such that their union covers S, and max k-cover ...
Uriel Feige
96
Voted
CVPR
2006
IEEE
15 years 11 months ago
Improving Border Localization of Multi-Baseline Stereo Using Border-Cut
This paper presents a novel algorithm that improves the localization of disparity discontinuities of disparity maps obtained by multi-baseline stereo. Rather than associating a di...
Marc-Antoine Drouin, Martin Trudeau, Sébast...