Heuristics for the central tree problem




Bang-Jensen Jorgen, Nikulin Yuri

PublisherSPRINGER

2010

Journal of Heuristics

JOURNAL OF HEURISTICS

J HEURISTICS

5

16

5

633

651

19

1381-1231

DOIhttps://doi.org/10.1007/s10732-009-9111-9



This paper addresses the central spanning tree problem (CTP). The problem consists in finding a spanning tree that minimizes the so-called robust deviation, i.e. deviation from a maximally distant tree. The distance between two trees is measured by means of the symmetric difference of their edge sets. The central tree problem is known to be NP-hard. We attack the problem with a hybrid heuristic consisting of: (1) a greedy construction heuristic to get a good initial solution and (2) fast local search improvement. We illustrate computationally efficiency of the proposed approach.




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