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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 13: Focus Session: Opinion Formation
SOE 13.1: Vortrag
Donnerstag, 19. März 2020, 09:30–09:45, GÖR 226
On Communicative Mechanisms Producing Filter Bubbles — •Jan Lorenz1, Daniel Geschke2, and Peter Holtz3 — 1Jacobs University Bremen, Germany — 2Institut für Demokratie und Zivilgesellschaft, Jena, Gemany — 3Leibniz-Institut für Wissensmedien IWM, Tübingen, Germany
The emergence of filter bubbles and echo chambers is a combined outcome of information filtering processes taking place on the individual, the social, and technological levels. Within this triple-filter-bubble framework, we construct an agent-based model and analyze different information filtering scenarios to answer the question under which circumstances social media and recommender algorithms contribute to fragmentation of modern society into distinct echo chambers. Simulations show that, even without any social or technological filters, echo chambers emerge as a consequence of cognitive mechanisms, such as confirmation bias, under conditions of central information propagation through channels reaching a large part of the population. When social and technological filtering mechanisms are added to the model, polarization of society into even more distinct and less interconnected echo chambers is observed. Directions for future research will be discussed, in particular, the link to social media data as well as a full characterization of systems dynamics.