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» Approximate Expectation Maximization
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SPAA
2010
ACM
15 years 4 months ago
Fast distributed approximation algorithms for vertex cover and set cover in anonymous networks
We present a distributed algorithm that finds a maximal edge packing in O(∆ + log∗ W) synchronous communication rounds in a weighted graph, independent of the number of nodes...
Matti Åstrand, Jukka Suomela
CORR
2006
Springer
150views Education» more  CORR 2006»
14 years 11 months ago
The approximability of MAX CSP with fixed-value constraints
In the maximum constraint satisfaction problem (Max CSP), one is given a finite collection of (possibly weighted) constraints on overlapping sets of variables, and the goal is to ...
Vladimir G. Deineko, Peter Jonsson, Mikael Klasson...
96
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CORR
2010
Springer
107views Education» more  CORR 2010»
14 years 10 months ago
Maximum Betweenness Centrality: Approximability and Tractable Cases
The Maximum Betweenness Centrality problem (MBC) can be defined as follows. Given a graph find a k-element node set C that maximizes the probability of detecting communication be...
Martin Fink, Joachim Spoerhase
ICC
2009
IEEE
140views Communications» more  ICC 2009»
14 years 9 months ago
Approximation Algorithms for Traffic Grooming in WDM Rings
Abstract-- This paper addresses the problem of traffic grooming in WDM rings in which all traffic emanates from a single node and all other nodes are destination nodes. This "...
Kevin Corcoran, Seth Flaxman, Mark Neyer, Peter Sc...
ICASSP
2011
IEEE
14 years 3 months ago
Convex approximation algorithms for back-pressure power control of wireless multi-hop networks
Cross-layer design and operation of wireless networks has attracted significant interest in the last decade, yet some basic problems in the area remain unsolved. In this paper, w...
Evaggelia Matskani, Nikos D. Sidiropoulos, Leandro...