6333
2019
eng
206
233
2
73
article
Wiley
0
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Reduction Techniques for the Prize-Collecting Steiner Tree Problem and the Maximum-Weight Connected Subgraph Problem
The concept of reduction has frequently distinguished itself as a pivotal ingredient of exact solving approaches for the Steiner tree problem in graphs. In this paper we broaden the focus and consider reduction techniques for three Steiner problem variants that have been extensively discussed in the literature and entail various practical applications: The prize-collecting Steiner tree problem, the rooted prize-collecting Steiner tree problem and the maximum-weight connected subgraph problem.
By introducing and subsequently deploying numerous new reduction methods, we are able to drastically decrease the size of a large number of benchmark instances, already solving more than 90 percent of them to optimality. Furthermore, we demonstrate the impact of these techniques on exact solving, using the example of the state-of-the-art Steiner problem solver SCIP-Jack.
Networks
10.1002/net.21857
urn:nbn:de:0297-zib-60420
Yes
Daniel Rehfeldt
Daniel Rehfeldt
Thorsten Koch
Stephen J. Maher
Mathematical Optimization
Mathematical Optimization Methods
Koch, Thorsten
Rehfeldt, Daniel
MIP-ZIBOPT
MODAL-SynLab
BEAM-ME
MODAL-Gesamt