Node-weighted Steiner tree approximation in unit disk graphs.
Feng ZouXianyue LiSuogang GaoWeili WuPublished in: J. Comb. Optim. (2009)
Keyphrases
- steiner tree
- minimum spanning tree
- edge weights
- shortest path
- weighted graph
- undirected graph
- betweenness centrality
- finding the shortest path
- directed graph
- graph structure
- approximation algorithms
- spanning tree
- bipartite graph
- graph theory
- facility location
- traveling salesman problem
- linear programming relaxation
- random walk
- graphical models