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
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: Suggested Citation