The echo chamber effect on social media

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 p...

Descripción completa

Detalles Bibliográficos
Autores: Cinelli, Matteo, de Francisci Morales, Gianmarco, Galeazzi, Alessandro, Quattrociocchi, Walter, Starnini, Michele
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/72506
Acceso en línea:https://hdl.handle.net/10230/72506
http://dx.doi.org/10.1073/pnas.2023301118
Access Level:acceso abierto
Palabra clave:Information spreading
Echo chambers
Social media
Polarization
id ES_9683903be0fef1c847fa7da43e8542e9
oai_identifier_str oai:repositori.upf.edu:10230/72506
network_acronym_str ES
network_name_str España
repository_id_str
spelling The echo chamber effect on social mediaCinelli, Matteode Francisci Morales, GianmarcoGaleazzi, AlessandroQuattrociocchi, WalterStarnini, MicheleInformation spreadingEcho chambersSocial mediaPolarizationSocial 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.National Academy of Sciences2026202620212026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/10230/72506http://dx.doi.org/10.1073/pnas.2023301118reponame:Repositorio Digital de la UPFinstname:Universitat Pompeu FabraInglésProceedings of the National Academy of Sciences of the United States of America. 2021;118(9):e2023301118Copyright © 2021 the Author(s). Published by PNAS. This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY).https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositori.upf.edu:10230/725062026-06-12T07:21:37Z
dc.title.none.fl_str_mv The echo chamber effect on social media
title The echo chamber effect on social media
spellingShingle The echo chamber effect on social media
Cinelli, Matteo
Information spreading
Echo chambers
Social media
Polarization
title_short The echo chamber effect on social media
title_full The echo chamber effect on social media
title_fullStr The echo chamber effect on social media
title_full_unstemmed The echo chamber effect on social media
title_sort The echo chamber effect on social media
dc.creator.none.fl_str_mv Cinelli, Matteo
de Francisci Morales, Gianmarco
Galeazzi, Alessandro
Quattrociocchi, Walter
Starnini, Michele
author Cinelli, Matteo
author_facet Cinelli, Matteo
de Francisci Morales, Gianmarco
Galeazzi, Alessandro
Quattrociocchi, Walter
Starnini, Michele
author_role author
author2 de Francisci Morales, Gianmarco
Galeazzi, Alessandro
Quattrociocchi, Walter
Starnini, Michele
author2_role author
author
author
author
dc.subject.none.fl_str_mv Information spreading
Echo chambers
Social media
Polarization
topic Information spreading
Echo chambers
Social media
Polarization
description 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.
publishDate 2021
dc.date.none.fl_str_mv 2021
2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/10230/72506
http://dx.doi.org/10.1073/pnas.2023301118
url https://hdl.handle.net/10230/72506
http://dx.doi.org/10.1073/pnas.2023301118
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Proceedings of the National Academy of Sciences of the United States of America. 2021;118(9):e2023301118
dc.rights.none.fl_str_mv https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv National Academy of Sciences
publisher.none.fl_str_mv National Academy of Sciences
dc.source.none.fl_str_mv reponame:Repositorio Digital de la UPF
instname:Universitat Pompeu Fabra
instname_str Universitat Pompeu Fabra
reponame_str Repositorio Digital de la UPF
collection Repositorio Digital de la UPF
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869413956198596608
score 15.812429

Similares en LA Referencia