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A self-organized model for network evolution

Caldarelli, Guido and Capocci, Andrea and Garlaschelli, Diego A self-organized model for network evolution. The European Physical Journal B, 64 (3-4). pp. 585-591. ISSN 1434-6028 (2008)

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Abstract

Here we provide a detailed analysis, along with some extensions and additonal investigations, of a recently proposed [1] self-organized model for the evolution of complex networks. Vertices of the network are characterized by a fitness variable evolving through an extremal dynamics process, as in the Bak-Sneppen [2] model representing a prototype of Self-Organized Criticality. The network topology is in turn shaped by the fitness variable itself, as in the fitness network model [3]. The system self-organizes to a nontrivial state, characterized by a power-law decay of dynamical and topological quantities above a critical threshold. The interplay between topology and dynamics in the system is the key ingredient leading to an unexpected behaviour of these quantities.

Item Type: Article
Identification Number: 10.1140/epjb/e2008-00243-5
Uncontrolled Keywords: PACS: 89.75.Hc Networks and genealogical trees - 05.65.+b Self-organized systems
Subjects: Q Science > QC Physics
Q Science > QH Natural history
Research Area: Economics and Institutional Change
Depositing User: Ms T. Iannizzi
Date Deposited: 01 Feb 2012 11:07
Last Modified: 21 Nov 2013 09:45
URI: http://eprints.imtlucca.it/id/eprint/1092

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