Supernodes: a generalization of the rich-club

Autor: Su Yuan Chan, Kerri Morgan, Nicholas Parsons, Julien Ugon
Rok vydání: 2021
Předmět:
Zdroj: Journal of Complex Networks. 10
ISSN: 2051-1329
2051-1310
Popis: In this article, we present two new concepts related to subgraph counting where the focus is not on the number of subgraphs that are isomorphic to some fixed graph $H$, but on the frequency with which a vertex or an edge belongs to such subgraphs. In particular, we are interested in the case where $H$ is a complete graph. These new concepts are termed vertex participation and edge participation, respectively. We combine these concepts with that of the rich-club to identify what we call a Super rich-club and rich edge-club. We show that the concept of vertex participation is a generalization of the rich-club. We present experimental results on randomized Erdös–Rényi and Watts–Strogatz small-world networks. We further demonstrate both concepts on a complex brain network and compare our results to the rich-club of the brain.
Databáze: OpenAIRE