Figure 5
From: Scaling in complex systems: a link between the dynamics of networks and growing interfaces

Log-log representation of the power spectrum of the variance of the node degrees of the six processes studied in this paper.
We can estimate the “global variance” of the vertex degrees from the global behaviour of the power spectrum of the visibility graphs, obtained in a similar way as in (4), distinguishes clearly among the six dynamical processes. While RD has got cRD ≈ 0.07, both EW and KPZ have a scaling exponents cEW ≈ 0.70 and cKPZ ≈ 0.76. The process MBE has cMBE ≈ 2.15. The other two discrete models yield: cRDSR ≈ 0.63 and cEden ≈ 0.87. The interfaces used for the calculations were taken at time t = 104.