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A Temporal Network Version of Watts’s Cascade Model

  • Fariba Karimi
  • Petter HolmeEmail author
Chapter
Part of the Understanding Complex Systems book series (UCS)

Abstract

Threshold models of cascades in the social and economical sciences explain the spread of opinion and innovation as an effect of social influence. In threshold cascade models, fads or innovation spread between agents as determined by their interactions to other agents and their personal threshold of resistance. Typically, these models do not account for structure in the timing of interaction between the units. In this work, we extend a model of social cascades by Duncan Watts to temporal interaction networks. In our model, we assume agents are influenced by their friends and acquaintances at certain time into the past. That is, the influence of the past ages and becomes unimportant. Thus, our modified cascade model has an effective time window of influence. We explore two types of thresholds—thresholds to fractions of the neighbors, or absolute numbers. We try our model on six empirical datasets and compare them with null models.

Keywords

Time Window Null Model Threshold Model Cascade Model Temporal Network 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors acknowledge financial support by the Swedish Research Council and the WCU program through NRF Korea funded by MEST R31–2008–10029. The authors thank Taro Takaguchi for comments.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.IceLab, Department of PhysicsUmeå UniversityUmeåSweden
  2. 2.Department of Energy ScienceSungkyunkwan UniversitySuwonKorea
  3. 3.Department of SociologyStockholm UniversityStockholmSweden

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