C. Gómez, M. Sánchez-Silva and L.Duenas-Osorio, “Clustering Methods for Risk Assessment of Infrastructure Network Systems,” In: Faber, Kohler and Nishijima, Eds., Applications of Statistics and Probability in Civil Engineering, CRC Press, Boca Raton, 2011.

has been cited by the following article:

• TITLE: Hierarchical Modeling by Recursive Unsupervised Spectral Clustering and Network Extended Importance Measures to Analyze the Reliability Characteristics of Complex Network Systems

  AUTHORS: Yiping Fang, Enrico Zio

  KEYWORDS: Complex Network System; Hierarchical Modeling; Spectral Clustering; Extended Importance Measure

  JOURNAL NAME: American Journal of Operations Research, Vol.3 No.1A, January 30, 2013

  ABSTRACT: The complexity of large-scale network systems made of a large number of nonlinearly interconnected components is a restrictive facet for their modeling and analysis. In this paper, we propose a framework of hierarchical modeling of a complex network system, based on a recursive unsupervised spectral clustering method. The hierarchical model serves the purpose of facilitating the management of complexity in the analysis of real-world critical infrastructures. We exemplify this by referring to the reliability analysis of the 380 kV Italian Power Transmission Network (IPTN). In this work of analysis, the classical component Importance Measures (IMs) of reliability theory have been extended to render them compatible and applicable to a complex distributed network system. By utilizing these extended IMs, the reliability properties of the IPTN system can be evaluated in the framework of the hierarchical system model, with the aim of providing risk managers with information on the risk/safety significance of system structures and components.