Figure 1

Graph distributions. Node degree distribution (left), average clustering coefficient as a function of node degree (center) and average neighbour degree as a function of node degree (right). The colors represent the network before (blue) and after (red) the preprocessing, i.e. removing the chains and filtering the 2-core of the graph. The node degree distributions have been adjusted to a power law by max-likelihood estimation, obtaining a slope \(\alpha=1.94\) for the original network (blue dashed line) and \(\alpha=1.41\) after the preprocessing (red dashed line).