Fig. 11

The LCC \({\mathcal {G}}\) of the Caltech CPN visualized with node size proportional to node’s betweenness and color intensity proportional to node’s PageRank. The larger and darker the node, the higher its betweenness and PageRank, the more important it is. Links are directed and start at the node of the same color. For clarity, a large scale visualization is shown in Fig. 19 in the “Appendix”