Preferential attachment of communities: The same principle, but a higher level

P. Pollner, G. Palla, T. Vicsek

Research output: Contribution to journalArticle

59 Citations (Scopus)


The graph of communities is a network emerging above the level of individual nodes in the hierarchical organisation of a complex system. In this graph the nodes correspond to communities (highly interconnected subgraphs, also called modules or clusters), and the links refer to members shared by two communities. Our analysis indicates that the development of this modular structure is driven by preferential attachment, in complete analogy with the growth of the underlying network of nodes. We study how the links between communities are born in a growing co-authorship network, and introduce a simple model for the dynamics of overlapping communities.

Original languageEnglish
Pages (from-to)478-484
Number of pages7
JournalEurophysics Letters
Issue number3
Publication statusPublished - Feb 1 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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