Fig. 7
From: The structure and behaviour of hierarchical infrastructure networks
The response of the eight graph models to the degree based node selection failure model method. Each response is plotted with the y-axis showing the number of components and the x-axis showing the % of nodes removed from the graph, and thus the most robust graphs would show a small number of components, with any increase shown to the right of plots as x tends away from 0. Plots (a)–(d) show clear increase in the number of components to the right of the plots suggesting a robust response, with a small number of exceptions in (c) and (d) where the targeted analysis results in a small number of 1000 graphs failing much more quickly. The other four plots (e), (f) and (h), show peaks much closer to the left of the plots, suggesting a less robust response, and plot (g) shows a unique response pattern, suggesting a greater robustness than in (a)–(d), but more than shown in (e), (f) and (h)