Complex Adaptive System of Systems (CASoS) Engineering Initiative http://www.sandia.gov/CasosEngineering/ Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. The Role of Community Structure in Opinion Cluster Formation Ryan J. Hammer, Thomas W. Moore, Patrick D. Finley, and Robert J. Glass Sandia National Laboratories SAND Number: 2012-9938 C 2nd International Conference on Complex Sciences: Theory and Applications Santa Fe, New Mexico December 5 th – December 7 th , 2012
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The Role of Community Structure in Opinion Cluster Formation
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Complex Adaptive System of Systems
(CASoS) Engineering Initiative
http://www.sandia.gov/CasosEngineering/
Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of
Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.
The Role of Community Structure in Opinion
Cluster Formation
Ryan J. Hammer, Thomas W. Moore, Patrick D. Finley, and Robert J. Glass
Sandia National Laboratories
SAND Number: 2012-9938 C
2nd International Conference on Complex
Sciences: Theory and Applications
Santa Fe, New Mexico
December 5th – December 7th, 2012
CASoS
Engineering Outline
Introduction
Background
Results
Applications to public health
Conclusion
2
CASoS
Engineering Introduction
• Social networks represent people and relationships
- Exhibit community structure
• Question: How does community structure affect
opinion cluster formation?
• Motivation: Crafting effective public health policies
3
CASoS
Engineering Opinion Dynamics
• Mechanism for modeling the flow of opinion through a
group of individuals
Started from Ising Spin Alignment models
Grounded in structural balance theory
• Our model
• Modified version of Deffuant & Weisbuch
• Each individual holds an opinion represented as a