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A hybridised taboo search heuristic to increase security in a utility network

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  • JANSSENS, Jochen
  • TALARICO, Luca
  • SÖRENSEN, Kenneth

Abstract

In this paper we propose a decision model aimed at increasing security in a utility network (e.g., smart grid, water network). The network consists of edges that might be a viable target for terrorists depending on several factors such as geographical location, accessibility of the network, the political stability of a region. Based on this we assume that all edges (e.g., pipes, cables) have a certain, not necessary equal, probability of failure, which can be reduced by selecting appropriate edge-specific security strategies. The decision model proposed in this paper is based on a metaheuristic approach, that uses taboo search hybridised with iterated local search and a large scale neighbourhood decent heuristic. The main goal is to reduce the risk of service failure between a couple of network nodes by selecting the right combination of security measures for each network edge given a limited security budget. A generator for realistic instances is proposed and used to create a set of test instances. Experiments on these instances are conducted to tune the parameters and evaluate the proposed metaheuristic algorithm.

Suggested Citation

  • JANSSENS, Jochen & TALARICO, Luca & SÖRENSEN, Kenneth, 2014. "A hybridised taboo search heuristic to increase security in a utility network," Working Papers 2014023, University of Antwerp, Faculty of Applied Economics.
  • Handle: RePEc:ant:wpaper:2014023
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    File URL: https://repository.uantwerpen.be/docman/irua/5bff28/128593.pdf
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    References listed on IDEAS

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    1. repec:eee:reensy:v:98:y:2012:i:1:p:35-42 is not listed on IDEAS
    2. Bretthauer, Kurt M. & Shetty, Bala, 2002. "The nonlinear knapsack problem - algorithms and applications," European Journal of Operational Research, Elsevier, vol. 138(3), pages 459-472, May.
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    Keywords

    Network security; Metaheuristics; Knapsack problem;

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