气候变化领域集成服务门户(CCPortal): The echo chamber effect on social media

CCPortal

DOI	10.1073/pnas.2023301118
	The echo chamber effect on social media
	Cinelli M.; de Francisci Morales G.; Galeazzi A.; Quattrociocchi W.; Starnini M.
发表日期	2021
ISSN	00278424
卷号	118 期号:9
英文摘要	Social media may limit the exposure to diverse perspectives and favor the formation of groups of like-minded users framing and reinforcing a shared narrative, that is, echo chambers. However, the interaction paradigms among users and feed algorithms greatly vary across social media platforms. This paper explores the key differences between the main social media platforms and how they are likely to influence information spreading and echo chambers' formation. We perform a comparative analysis of more than 100 million pieces of content concerning several controversial topics (e.g., gun control, vaccination, abortion) from Gab, Facebook, Reddit, and Twitter. We quantify echo chambers over social media by two main ingredients: 1) homophily in the interaction networks and 2) bias in the information diffusion toward like-minded peers. Our results show that the aggregation of users in homophilic clusters dominate online interactions on Facebook and Twitter. We conclude the paper by directly comparing news consumption on Facebook and Reddit, finding higher segregation on Facebook. © This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY).
英文关键词	Echo chambers; Information spreading; Polarization; Social media
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180448
作者单位	Department of Environmental Sciences, Informatics and Statistics, Ca'Foscari Univerity of Venice, Venice, 30172, Italy; Institute for Scientific Interchange (ISI) Foundation, Torino, 10126, Italy; Department of Information Engineering, University of Brescia, Brescia, 25123, Italy; Department of Computer Science, Sapienza University of Rome, Rome, 00185, Italy
推荐引用方式 GB/T 7714	Cinelli M.,de Francisci Morales G.,Galeazzi A.,et al. The echo chamber effect on social media[J],2021,118(9).
APA	Cinelli M.,de Francisci Morales G.,Galeazzi A.,Quattrociocchi W.,&Starnini M..(2021).The echo chamber effect on social media.Proceedings of the National Academy of Sciences of the United States of America,118(9).
MLA	Cinelli M.,et al."The echo chamber effect on social media".Proceedings of the National Academy of Sciences of the United States of America 118.9(2021).