Interdicting facilities in tree networks

Nicolas Fröhlich () and Stefan Ruzika ()
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Nicolas Fröhlich: Technische Universität Kaiserslautern
Stefan Ruzika: Technische Universität Kaiserslautern

TOP: An Official Journal of the Spanish Society of Statistics and Operations Research, 2022, vol. 30, issue 1, No 5, 95-118

Abstract: Abstract This article investigates a network interdiction problem on a tree network: given a subset of nodes chosen as facilities, an interdictor may dissect the network by removing a size-constrained set of edges, striving to worsen the established facilities best possible. Here, we consider a reachability objective function, which is closely related to the covering objective function: the interdictor aims to minimize the number of customers that are still connected to any facility after interdiction. For the covering objective on general graphs, this problem is known to be NP-complete (Fröhlich and Ruzika In: On the hardness of covering-interdiction problems. Theor. Comput. Sci., 2021). In contrast to this, we propose a polynomial-time solution algorithm to solve the problem on trees. The algorithm is based on dynamic programming and reveals the relation of this location-interdiction problem to knapsack-type problems. However, the input data for the dynamic program must be elaborately generated and relies on the theoretical results presented in this article. As a result, trees are the first known graph class that admits a polynomial-time algorithm for edge interdiction problems in the context of facility location planning.

Keywords: Network interdiction; Network location; Dynamic programming; Trees; 90C27; 90B80; 90C39; 05C05 (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11750-021-00600-6

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