237 search results - page 10 / 48 » Approximation Algorithms for Minimum Tree Partition |
RECOMB
2010
Springer
13 years 7 months ago
2010
Springer
We consider the following problem: given a forest of gene family trees on a set of genomes, find a first speciation which splits these genomes into two subsets and minimizes the ...
COCOON
2005
Springer
14 years 2 months ago
2005
Springer
The terminal Steiner tree problem (TST) consists of finding a minimum cost Steiner tree where each terminal is a leaf. We describe a factor 2ρ−ρ/(3ρ−2) approximation algor...
SODA
2003
ACM
13 years 10 months ago
2003
ACM
We give a 7.18-approximation algorithm for the minimum latency problem that uses only O(n log n) calls to the prize-collecting Steiner tree (PCST) subroutine of Goemans and Willia...
IPL
2007
13 years 8 months ago
2007
Given a metric graph G, we are concerned with finding a spanning tree of G where the maximum weighted degree of its vertices is minimum. In a metric graph (or its spanning tree),...
FSTTCS
2001
Springer
14 years 1 months ago
2001
Springer
Consider a directed graph G = (V, E) with n vertices and a root vertex r ∈ V . The DMDST problem for G is one of constructing a spanning tree rooted at r, whose maximal degree is...