A note on “A faster approximation algorithm for the Steiner problem in graphs”
✍ Scribed by Rolf Floren
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 191 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0020-0190
No coin nor oath required. For personal study only.
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The group Steiner tree problem is a generalization of the Steiner tree problem where we are given several subsets (groups) of vertices in a weighted graph, and the goal is to find a minimum-weight connected subgraph containing at least one vertex from each group.The problem was introduced by Reich a
In this paper, we consider the Steiner problem in graphs, which is the problem of connecting together, at minimum cost, a number of vertices in an undirected graph with nonnegative edge costs. We use the formulation of this problem as a shortest spanning tree (SST) problem with additional constraint