Opinion dynamics on interacting networks: media competition and social influence.

Quattrociocchi, Walter; Caldarelli, Guido; Scala, Antonio
The inner dynamics of the multiple actors of the informations systems - i.e, T.V., newspapers, blogs, social network platforms, - play a fundamental role on the evolution of the public opinion. Coherently with the recent history of the information system (from few main stream media to the massive diffusion of socio-technical system), in this work we investigate how main stream media signed interaction might shape the opinion space. In particular we focus on how different size (in the number of media) and interaction patterns of the information system may affect collective debates and thus the opinions' distribution. We introduce a sophisticated computational model of opinion dynamics which accounts for the coexistence of media and gossip as separated mechanisms and for their feedback loops. The model accounts also for the effect of the media communication patterns by considering both the simple case where each medium mimics the behavior of the most successful one (to maximize the audience) and the case where there is polarization and thus competition among media memes. We show that plurality and competition within information sources lead to stable configurations where several and distant cultures coexist.
Research areas:
Year:
2014
Type of Publication:
Article
Keywords:
influence; multilayer-networks; opinions; social\_networks
Journal:
Scientific reports
Volume:
4
Pages:
4938
Month:
May
ISSN:
2045-2322
DOI:
10.1038/srep04938
Hits: 5818

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