期刊名称：Journal of Artificial Societies and Social Simulation
印刷版ISSN：1460-7425
出版年度：2021
卷号：24
期号：2
页码：1
DOI：10.18564/jasss.4552
出版社：University of Surrey, Department of Sociology
摘要：Studies on the fundamental role of diverse media in the evolution of public opinion can protect us from the spreading of brainwashing, extremism, and terrorism. Many fear the information cocoon may result in polarization of the public opinion. Hence, in this work, we investigate how audiences’ choices among diverse media might influence public opinion. Specifically, we aim to figure out how peoples’ horizons (i.e., range of available media) and quantity, as well as the distribution of media, may shape the space of public opinion. We propose a novel model of opinion dynamics that considers dierent influences and horizons for every individual, and we carry out simulations using a real-world social network. Numerical simulations show that diversity in media can provide more choices to the people, although individuals only choose media within the bounds of their horizons, extreme opinions are more diluted, and no opinion polarizations emerge. Furthermore, we find that the distribution of media’s opinions can eectively influence the space for public opinion, but when the number of media grows to a certain level, its eect will reach a limitation. Finally, we show that the eect of campaigns for consciousness or education can be improved by constructing the opinion of media, which can provide a basis for the policy maker in the new media age.
关键词：Opinion Dynamics; Social Media; Polarization; Agent-Based Modeling; Opinion Guidance
