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» Approximating Minimum-Power Degree and Connectivity Problems
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FOCS
2008
IEEE
13 years 11 months ago
Degree Bounded Network Design with Metric Costs
Given a complete undirected graph, a cost function on edges and a degree bound B, the degree bounded network design problem is to find a minimum cost simple subgraph with maximum...
Yuk Hei Chan, Wai Shing Fung, Lap Chi Lau, Chun Ko...
INFOCOM
2009
IEEE
13 years 11 months ago
Minimum Maximum Degree Publish-Subscribe Overlay Network Design
—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 sca...
Melih Onus, Andréa W. Richa
APPROX
2008
Springer
173views Algorithms» more  APPROX 2008»
13 years 6 months ago
Connected Vertex Covers in Dense Graphs
We consider the variant of the minimum vertex cover problem in which we require that the cover induces a connected subgraph. We give new approximation results for this problem in d...
Jean Cardinal, Eythan Levy
WAOA
2007
Springer
170views Algorithms» more  WAOA 2007»
13 years 11 months ago
A 5/3-Approximation for Finding Spanning Trees with Many Leaves in Cubic Graphs
For a connected graph G, let L(G) denote the maximum number of leaves in a spanning tree in G. The problem of computing L(G) is known to be NP-hard even for cubic graphs. We improv...
José R. Correa, Cristina G. Fernandes, Mart...
ICRA
2006
IEEE
95views Robotics» more  ICRA 2006»
13 years 10 months ago
Discrete Approximations to Continuous Curves
Abstract— We consider the problem of approximating a continuous curve by a piecewise linear one whose segments are assumed to be connected by universal joints. Rather than taking...
Sean B. Andersson