Authors
Philip Klein, RJJA Ravi
Publication date
1995/7/1
Journal
Journal of Algorithms
Volume
19
Issue
1
Pages
104-115
Publisher
Academic Press
Description
We give the first approximation algorithm for the node-weighted Steiner tree problem. Its performance guarantee is within a constant factor of the best possible unless P̃ ⊇ NP. (P̃ stands for the complexity class deterministic quasi-polynomial time, or DTIME[npolylog n].) Our algorithm generalizes to handle other network-design problems.
Total citations
Scholar articles
P Klein, R Ravi - Journal of Algorithms, 1995