Phys. Rev. Lett. 89, 258702 (2002) [4 pages]Scale-Free Networks from Varying Vertex Intrinsic FitnessReceived 15 July 2002; published 3 December 2002 A new mechanism leading to scale-free networks is proposed in this Letter. It is shown that, in many cases of interest, the connectivity power-law behavior is neither related to dynamical properties nor to preferential attachment. Assigning a quenched fitness value xi to every vertex, and drawing links among vertices with a probability depending on the fitnesses of the two involved sites, gives rise to what we call a good-get-richer mechanism, in which sites with larger fitness are more likely to become hubs (i.e., to be highly connected). © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.258702
DOI:
10.1103/PhysRevLett.89.258702
PACS:
89.75.Hc, 89.75.Da
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