29 search results - page 4 / 6 » A matter of degree: improved approximation algorithms for de... |
SAC
2003
ACM
14 years 16 days ago
2003
ACM
Given a connected, weighted, undirected graph G and a bound D, the bounded-diameter minimum spanning tree problem seeks a spanning tree on G of lowest weight in which no path betw...
APPROX
2007
Springer
14 years 1 months ago
2007
Springer
A star graph is a tree of diameter at most two. A star forest is a graph that consists of node-disjoint star graphs. In the spanning star forest problem, given an unweighted graph ...
STOC
2009
ACM
14 years 8 months ago
2009
ACM
This paper studies constant-time approximation algorithms for problems on degree-bounded graphs. Let n and d be the number of vertices and the degree bound, respectively. This pap...
JCO
2007
13 years 7 months ago
2007
Let G = (V, E) be a connected multigraph, whose edges are associated with labels specified by an integer-valued function L : E → N. In addition, each label ℓ ∈ N has a non-...
STOC
2010
ACM
14 years 4 days ago
2010
ACM
The Steiner tree problem is one of the most fundamental ÆÈ-hard problems: given a weighted undirected graph and a subset of terminal nodes, find a minimum weight tree spanning ...