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A hybridised variable neighbourhood tabu search heuristic to increase security in a utility network

Jochen Janssens, Luca Talarico and Sörensen, Kenneth

Reliability Engineering and System Safety, 2016, vol. 145, issue C, 221-230

Abstract: We propose a decision model aimed at increasing security in a utility network (e.g., electricity, gas, water or communication network). The network is modelled as a graph, the edges of which are unreliable. We assume that all edges (e.g., pipes, cables) have a certain, not necessarily equal, probability of failure, which can be reduced by selecting edge-specific security strategies. We develop a mathematical programming model and a metaheuristic approach that uses a greedy random adaptive search procedure to find an initial solution and uses tabu search hybridised with iterated local search and a variable neighbourhood descend heuristic to improve this solution. The main goal is to reduce the risk of service failure between an origin and a destination node by selecting the right combination of security measures for each network edge given a limited security budget.

Keywords: Network security; Metaheuristics; GRASP; ILS; Tabu search; VND (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:145:y:2016:i:c:p:221-230

DOI: 10.1016/j.ress.2015.08.008

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