emergence of collective memories
TRANSCRIPT
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
培德在苏州
complex network boom of early 00’s
Narrative network 叙述⺴⽹网络 ≈ Memory web 记忆⺴⽹网络
research leader fieldtrip to 北京
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?
Empirical memory webSource material
Bearman, Moody, Faris, 2003. “Networks and History” Complexity 8:61–71.
Empirical memory webIndividual memory web 1
Bearman, Moody, Faris, 2003. “Networks and History” Complexity 8:61–71.
Empirical memory webIndividual memory web 2
Bearman, Moody, Faris, 2003. “Networks and History” Complexity 8:61–71.
Empirical memory webAggregate memory web
Bearman, Moody, Faris, 2003. “Networks and History” Complexity 8:61–71.
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