From centrality to temporary fame: Dynamic centrality in complex networks

Dan Braha, Yaneer Bar-Yam

Research output: Contribution to journalArticlepeer-review

114 Scopus citations


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.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
Issue number2
StatePublished - 1 Jan 2006
Externally publishedYes


  • Dynamic hubs
  • Multiscale networks
  • Social networks
  • Time-based networks
  • Turbulent networks

ASJC Scopus subject areas

  • Computer Science (all)
  • General


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