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THE EMERGENCE OF COLLECTIVE MEMORIES Sungmin Lee Verónica Ramenzoni Petter Holme

THE EMERGENCE OF COLLECTIVE MEMORIES Sungmin Lee Verónica Ramenzoni Petter Holme. http://www.tp.umu.se/~holme/. (my collaborator) Fredrik Liljeros decided to come here. complex network boom of early 00’s. (my office mate) Martin Rosvall was invited. Narrative network / memory web.

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THE EMERGENCE OF COLLECTIVE MEMORIES Sungmin Lee Verónica Ramenzoni Petter Holme

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  1. THE EMERGENCE OF COLLECTIVE MEMORIES Sungmin Lee VerónicaRamenzoni Petter Holme http://www.tp.umu.se/~holme/

  2. (my collaborator) Fredrik Liljeros decided to come here complex network boom of early 00’s (my office mate) Martin Rosvall was invited Narrative network / memory web discrete mathematics I became interested in a science career Petter@DPG

  3. Outline

  4. Empirical memory web Source material Bearman, Moody, Faris, 2003. “Networks and History” Complexity8:61–71.

  5. Empirical memory web Individual memory web 1 Bearman, Moody, Faris, 2003. “Networks and History” Complexity8:61–71.

  6. Empirical memory web Individual memory web 2 Bearman, Moody, Faris, 2003. “Networks and History” Complexity 8:61–71.

  7. Empirical memory web Aggregate memory web Bearman, Moody, Faris, 2003. “Networks and History” Complexity 8:61–71.

  8. Empirical memory web Degree distribution

  9. Empirical memory web Community structure

  10. Model ingredients

  11. Communication model Learning dynamics

  12. Example output Memory overlap, Jaccard index of associative arcs

  13. Model community structure Number of groups

  14. Model community structure Memories and social ties

  15. Model community structure Size- & communication-rate scaling of the number of communities 15

  16. Model community structure Size-scaling of the diversity regime

  17. Model community structure Size-scaling of the number of groups

  18. Summary

  19. Vielen Dank! to all of you … from Sungmin Verónica Petter http://www.tp.umu.se/~holme/

  20. Empirical memory web Clustering coefficient vs. degree

  21. Empirical memory web Degree correlations

  22. Communication model Community structure

  23. Communication model Errors & misinterpretations

  24. Model community structure Why a peak in g?

  25. Model community structure Size-scaling of the diversity regime

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