41 search results - page 5 / 9 » A Note on Distance Approximating Trees in Graphs |
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WADS
2007
Springer
15 years 5 months ago
2007
Springer
A ball graph is an intersection graph of a set of balls with arbitrary radii. Given a real number t > 1, we say that a subgraph G′ of a graph G is a t-spanner of G, if for eve...
JDA
2007
14 years 11 months ago
2007
In this paper, we review a recently developed class of algorithms that solve global problems in unit distance wireless networks by means of local algorithms. A local algorithm is ...
APPROX
2007
Springer
15 years 3 months ago
2007
Springer
We study the Steiner Tree problem in the model of two-stage stochastic optimization with non-uniform inflation factors, and give a poly-logarithmic approximation factor for this pr...
JCSS
2011
14 years 6 months ago
2011
The bandwidth of an n-vertex graph G is the minimum value b such that the vertices of G can be mapped to distinct integer points on a line without any edge being stretched to a di...
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APPROX
2009
Springer
15 years 6 months ago
2009
Springer
We explore the average-case “Vickrey” cost of structures in a random setting: the Vickrey cost of a shortest path in a complete graph or digraph with random edge weights; the V...