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Assessing the importance of components in a system modeled as a network

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  • Claudio M Rocco S
  • Juan Carlos Ruiz

Abstract

In this article the importance of network components, such as links or nodes, is analyzed through the evaluation of some “classical†and other more recent metrics developed in the literature. In particular, the use of global sensitivity methods is suggested for quantifying the simultaneous effects of components. These assessments allow the decision-maker to identify key components, i.e. the components that affect one or more network performance functions. The article describes each metrics, highlights pro and cons and suggests how to select the most convenient one, based on four aspects: the objective of the decision-maker, the model characteristic, computation time and the information availability. A comparison among different importance measures in two networks is presented.

Suggested Citation

  • Claudio M Rocco S & Juan Carlos Ruiz, 2012. "Assessing the importance of components in a system modeled as a network," Journal of Risk and Reliability, , vol. 226(5), pages 464-475, October.
    • Handle: RePEc:sae:risrel:v:226:y:2012:i:5:p:464-475
    DOI: 10.1177/1748006X12457612
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    References listed on IDEAS

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    1. Zio, E. & Golea, L.R. & Rocco S., C.M., 2012. "Identifying groups of critical edges in a realistic electrical network by multi-objective genetic algorithms," Reliability Engineering and System Safety, Elsevier, vol. 99(C), pages 172-177.
    2. Bent Natvig, 2011. "Measures of Component Importance in Nonrepairable and Repairable Multistate Strongly Coherent Systems," Methodology and Computing in Applied Probability, Springer, vol. 13(3), pages 523-547, September.
    3. Vaurio, Jussi K., 2010. "Ideas and developments in importance measures and fault-tree techniques for reliability and risk analysis," Reliability Engineering and System Safety, Elsevier, vol. 95(2), pages 99-107.
    4. Natvig, Bent & Huseby, Arne B. & Reistadbakk, Mads O., 2011. "Measures of component importance in repairable multistate systems—a numerical study," Reliability Engineering and System Safety, Elsevier, vol. 96(12), pages 1680-1690.
    5. Ramirez-Marquez, Jose Emmanuel & Coit, David W., 2007. "Multi-state component criticality analysis for reliability improvement in multi-state systems," Reliability Engineering and System Safety, Elsevier, vol. 92(12), pages 1608-1619.
    6. Rocco S., Claudio M. & Emmanuel Ramirez-Marquez, José & Salazar A., Daniel E., 2010. "Bi and tri-objective optimization in the deterministic network interdiction problem," Reliability Engineering and System Safety, Elsevier, vol. 95(8), pages 887-896.
    7. Rocco S., Claudio M. & Ramirez-Marquez, Jose Emmanuel, 2012. "Innovative approaches for addressing old challenges in component importance measures," Reliability Engineering and System Safety, Elsevier, vol. 108(C), pages 123-130.
    8. Stephen P. Borgatti, 2006. "Identifying sets of key players in a social network," Computational and Mathematical Organization Theory, Springer, vol. 12(1), pages 21-34, April.
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    Cited by:

    1. Almoghathawi, Yasser & Barker, Kash & Rocco, Claudio M. & Nicholson, Charles D., 2017. "A multi-criteria decision analysis approach for importance identification and ranking of network components," Reliability Engineering and System Safety, Elsevier, vol. 158(C), pages 142-151.

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