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Core-periphery organization of complex networks
2005 (English)In: Physical Review E, ISSN 1539-3755, Vol. 72, no 4Article in journal (Refereed) Published
Abstract [en]

Networks may, or may not, be wired to have a core that is both itself densely connected and central in terms of graph distance. In this study we propose a coefficient to measure if the network has such a clear-cut core-periphery dichotomy. We measure this coefficient for a number of real-world and model networks and find that different classes of networks have their characteristic values. Among other things we conclude that geographically embedded transportation networks have a strong core-periphery structure. We proceed to study radial statistics of the core, i.e., properties of the n neighborhoods of the core vertices for increasing n. We find that almost all networks have unexpectedly many edges within n neighborhoods at a certain distance from the core suggesting an effective radius for nontrivial network processes.

Place, publisher, year, edition, pages
2005. Vol. 72, no 4
Keyword [en]
food-web, internet
URN: urn:nbn:se:kth:diva-15147DOI: 10.1103/PhysRevE.72.046111ISI: 000232931200023OAI: diva2:333188
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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ReferencesLink to record
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