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

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Presentation on theme: "Network Dynamics and Simulation Science Laboratory Cyberinfrastructure for Social Networks and Network Analysis Network Dynamics and Simulation Science."— Presentation transcript:

1 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

2 Constructing Social Contact Networks

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

4 Network Dynamics and Simulation Science Laboratory Others Use the Same Locations

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

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

7 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

8 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

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

10 Network Dynamics and Simulation Science Laboratory Estimating a social network

11 Grid-based Web Service Cyberinfrastructure for Social Sciences


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