%R 10.1140/epjb/e2008-00243-5
%N 3-4
%K PACS: 89.75.Hc Networks and genealogical trees - 05.65.+b Self-organized systems 
%D 2008
%J The European Physical Journal B
%V 64
%T A self-organized model for network evolution
%P 585-591
%X 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. 
%A Guido Caldarelli
%A Andrea Capocci
%A Diego Garlaschelli
%L eprints1092