Clustering signatures classify directed networks.
We use a clustering signature, based on a recently introduced generalization of the clustering coefficient to directed networks, to analyze 16 directed real-world networks of five different types: social networks, genetic transcription networks, word adjacency networks, food webs, and electric circuits. We show that these five classes of networks are cleanly separated in the space of clustering signatures due to the statistical properties of their local neighborhoods, demonstrating the usefulness of clustering signatures as a classifier of directed networks.
Theory of Condensed Matter, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom. sea31@cam.ac.uk
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