In this paper, we study the Node Weighted Steiner Tree Problem (NSP). This problem is a generalization of the Steiner tree problem in the sense that vertex weights are considered. Given an undirected graph, the problem is to find a tree that spans a subset of the vertices and is such that the total
β¦ LIBER β¦
The node-weighted steiner tree problem
β Scribed by Arie Segev
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 745 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0028-3045
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We investigate a practical variant of the well-known graph Steiner tree problem. In this variant, every target vertex is required to be a leaf vertex in the solution Steiner tree. We present hardness results for this variant as well as a polynomial time approximation algorithm with performance ratio