Network Dynamics and Simulation Science Laboratory Cyberinfrastructure for Social Networks and Network Analysis Network Dynamics and Simulation Science.

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Network Dynamics and Simulation Science Laboratory Cyberinfrastructure for Social Networks and Network Analysis Network Dynamics and Simulation Science Laboratory Virginia Bioinformatics Institute Virginia Tech Christopher Barrett Karla Atkins, Richard Beckman, Keith Bisset, Stephen Eubank, Achla Marathe, Madhav Marathe, Henning Mortveit, Paula Stretz, Anil Vullikanti

Constructing Social Contact Networks

Network Dynamics and Simulation Science Laboratory A Family’s Day Carpool Home WorkLunchWork Carpool Bus Shopping Car Daycare Car SchoolBus

Network Dynamics and Simulation Science Laboratory Others Use the Same Locations

Network Dynamics and Simulation Science Laboratory Time Slices Define a Social Network

Decreasing fidelity, but invariant degree distribution, in social networks (above) affects disease dynamics (below)

Degree distribution of the (temporal) people-ppl. graph Basic Structural Properties of Portland Social Network * Degree distributions of the bipartite graph Clustering Coefficient * Nature, 13 May 2004

Scaling Laws for Structural Measures* Degree Distribution Cumulative point overlap ratios Shattering by high degree people * ACM SIAM SODA 2004 and DIMACS Issue on Epidemiology

Network robustness Shattering the giant component of people by: Vaccinating (quarantining) high-degree people Closing down high-degree locations

Network Dynamics and Simulation Science Laboratory Estimating a social network

Grid-based Web Service Cyberinfrastructure for Social Sciences