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EOR
2007
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15 years 4 months ago
Lower bounds and heuristics for the Windy Rural Postman Problem
In this paper we present several heuristic algorithms and a cutting-plane algorithm for the Windy Rural Postman Problem. This problem contains a big number of important Arc Routin...
Enrique Benavent, Alessandro Carrotta, Angel Corbe...
NETWORKS
2006
15 years 4 months ago
Lower bounds for the relative greedy algorithm for approximating Steiner trees
Abstract. The Steiner tree problem is to find a shortest subgraph that spans a given set of vertices in a graph. This problem is known to be NP-hard and it is well known that a pol...
Stefan Hougardy, Stefan Kirchner