Some like it Hoax: Automated fake news detection in social networks

Marco Luigi Della Vedova, Eugenio Tacchini, Gabriele Ballarin, Stefano Moret, Luca De Alfaro

Risultato della ricerca: Contributo in libroContributo a convegno

89 Citazioni (Scopus)

Abstract

In the recent years, the reliability of information on the Internet has emerged as a crucial issue of modern society. Social network sites (SNSs) have revolutionized the way in which information is spread by allowing users to freely share content. As a consequence, SNSs are also increasingly used as vectors for the diffusion of misinformation and hoaxes. The amount of disseminated information and the rapidity of its diffusion make it practically impossible to assess reliability in a timely manner, highlighting the need for automatic online hoax detection systems. As a contribution towards this objective, we show that Facebook posts can be classified with high accuracy as hoaxes or non-hoaxes on the basis of the users who “liked” them. We present two classification techniques, one based on logistic regression, the other on a novel adaptation of boolean crowdsourcing algorithms. On a dataset consisting of 15,500 Facebook posts and 909,236 users, we obtain classification accuracies exceeding 99% even when the training set contains less than 1% of the posts. We further show that our techniques are robust: they work even when we restrict our attention to the users who like both hoax and non-hoax posts. These results suggest that mapping the diffusion pattern of information can be a useful component of automatic hoax detection systems.
Lingua originaleEnglish
Titolo della pubblicazione ospiteCEUR Workshop Proceedings
Pagine1-15
Numero di pagine15
Stato di pubblicazionePubblicato - 2017
Evento2nd Workshop on Data Science for Social Good, SoGood 2017 - Skopje
Durata: 18 set 201718 set 2017

Workshop

Workshop2nd Workshop on Data Science for Social Good, SoGood 2017
CittàSkopje
Periodo18/9/1718/9/17

Keywords

  • classification, fake news, hoax, social networks

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