Title
A 3/2-approximation algorithm for some minimum-cost graph problems
Abstract
We consider a class of graph problems introduced in a paper of Goemans and Williamson that involve finding forests of minimum edge cost. This class includes a number of location/routing problems; it also includes a problem in which we are given as input a parameter $$k$$ k , and want to find a forest such that each component has at least $$k$$ k vertices. Goemans and Williamson gave a 2-approximation algorithm for this class of problems. We give an improved 3/2-approximation algorithm.
Year
DOI
Venue
2015
10.1007/s10107-013-0727-z
Mathematical Programming: Series A and B
Keywords
Field
DocType
90C27, 05C85
Discrete mathematics,Approximation algorithm,Graph,Mathematical optimization,Combinatorics,Vertex (geometry),Mathematics
Journal
Volume
Issue
ISSN
150
1
1436-4646
Citations 
PageRank 
References 
0
0.34
9
Authors
3
Name
Order
Citations
PageRank
Basile Couëtoux100.34
James M. Davis2364.27
David P. Williamson33564413.34