From Centrality to Temporary Fame: Dynamic Centrality in Complex Networks

Complexity, Vol. 12, No. 2, pp. 59-63, November 2006

13 Pages Posted: 7 Dec 2006

See all articles by Dan Braha

Dan Braha

New England Complex Systems Institute

Yaneer Bar-Yam

New England Complex Systems Institute

Abstract

We develop a new approach to the study of the dynamics of link utilization in complex networks using records of communication in a large social network. Counter to the perspective that nodes have particular roles, we find roles change dramatically from day to day. Local hubs have a power law degree distribution over time, with no characteristic degree value. Our results imply a significant reinterpretation of the concept of node centrality in complex networks, and among other conclusions suggest that interventions targeting hubs will have significantly less effect than previously thought.

Keywords: Social Networks, Centrality, Time-Based Networks, Dynamic Hubs, Multi-Scale Networks, Turbulent Networks

JEL Classification: C00, C4

Suggested Citation

Braha, Dan and Bar-Yam, Yaneer, From Centrality to Temporary Fame: Dynamic Centrality in Complex Networks. Complexity, Vol. 12, No. 2, pp. 59-63, November 2006, Available at SSRN: https://ssrn.com/abstract=949358

Dan Braha (Contact Author)

New England Complex Systems Institute ( email )

277 Broadway
Cambridge, MA 02138
United States

Yaneer Bar-Yam

New England Complex Systems Institute ( email )

24 Mt. Auburn St.
Cambridge, MA 02138
United States

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