Cascade size in Watts (2002) model with 1,000 agents with heterogeneous thresholds, 20 agents selected at random as the initial seeds
Figure 2 (a, b)
Figure 2. (a) Rank versus popularity for real-world top 100 ranked lists (dots) versus neutral model results (lines). Top 100 lists include: male baby name frequency (per million) in the 1990 US census (blue), RSS feed subscriptions 2001-2008 (orange), English words (red), cited economists 1993-2003 (purple), and religions in thousands of adherents (green). (b) Life-spans of UK Number One Hits (www.theofficialcharts.com) for 1956-2007 (open circles), versus the neutral model (m = 1, μ = 0.1) shown by the blue line), and also years in the Top 5 US boys' names (www.ssa.gov/OACT/babynames) 1907-2006 (filled circles) versus the neutral model (m = 10, μ = 0.001), shown by the red line. Adapted from Bentley et al. 2011: Figs 2b and 4b.