105 search results - page 15 / 21 » A 3-Approximation for the Minimum Tree Spanning k Vertices |
LATIN
2010
Springer
14 years 2 months ago
2010
Springer
Many divide-and-conquer algorithms employ the fact that the vertex set of a graph of bounded treewidth can be separated in two roughly balanced subsets by removing a small subset o...
STOC
2003
ACM
14 years 8 months ago
2003
ACM
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
WG
2009
Springer
14 years 2 months ago
2009
Springer
In this paper, we study the sub-coloring and hypo-coloring problems on interval graphs. These problems have applications in job scheduling and distributed computing and can be used...
ALGORITHMICA
2010
13 years 7 months ago
2010
We study the merging process when Kruskal's algorithm is run with random graphs as inputs. Our aim is to analyze this process when the underlying graph is the complete graph ...
WADS
2007
Springer
14 years 1 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...