THE EMERGENCE OF COLLECTIVE MEMORIES
Sungmin Lee 李圣民 (Umeå University 于默奥⼤大学, 瑞典)
Verónica Ramenzoni (MPI Psycholinguistics Nijmegen, Holland)
Petter Holme 郝培德 (Umeå University 于默奥⼤大学, 瑞典,
Sungkyunguan University 成韵馆⼤大学,韩国)
PLoS ONE 5, e12522 (2010).
http://www.tp.umu.se/~holme/
全国复杂⺴⽹网络学术会议
October 17, 2010
Outline
- What is the topology of real narrative networks?
- How can we model the evolution of narrative
networks / memory webs?
- How (much) can communication stabilize
collective memories?
- What are the conditions for groups to form?
- How does the observations behave as a function
of population size?
Model ingredients
- N agents with individual memory webs.
- Agents can learn about history from experience or
communication.
- Closer friends are more likely to communicate &
people who communicate often are closer friends.
- Events / associative arcs remembered more strongly
are more frequently discussed, and vice versa.
- Events / associative arcs not talked about are
gradually forgotten.
Summary
- Narrative networks represent memory webs.
- Network modeling can be helpful to understand
these quantitatively.
- An empirical narrative network shows skewed (in-
and out-) degree distribution.
- Propose a communication model that shows the
emergence of collective memories
- … and the formation of communities with strong
internal connections and similar memory webs.
- The number of communities is limited as a function
of N