Entropy-based detection of Twitter echo chambers.

PNAS Nexus

Istituto di Informatica e Telematica, CNR, via G. Moruzzi 1, Pisa 56124, Italy.

Published: May 2024


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Article Abstract

Echo chambers, i.e. clusters of users exposed to news and opinions in line with their previous beliefs, were observed in many online debates on social platforms. We propose a completely unbiased entropy-based method for detecting echo chambers. The method is completely agnostic to the nature of the data. In the Italian Twitter debate about the Covid-19 vaccination, we find a limited presence of users in echo chambers (about 0.35% of all users). Nevertheless, their impact on the formation of a common discourse is strong, as users in echo chambers are responsible for nearly a third of the retweets in the original dataset. Moreover, in the case study observed, echo chambers appear to be a receptacle for disinformative content.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11086943PMC
http://dx.doi.org/10.1093/pnasnexus/pgae177DOI Listing

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