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The strength of weak bots

Keijzer, M. A.; Mäs, Michael

Abstract:
Some fear that social bots, automated accounts on online social networks, propagate falsehoods that can harm public opinion formation and democratic decision-making. Empirical research, however, resulted in puzzling findings. On the one hand, the content emitted by bots tends to spread very quickly in the networks. On the other hand, it turned out that bots’ ability to contact human users tends to be very limited. Here we analyze an agent-based model of social influence in networks explaining this inconsistency. We show that bots may be successful in spreading falsehoods not despite their limited direct impact on human users, but because of this limitation. Our model suggests that bots with limited direct impact on humans may be more and not less effective in spreading their views in the social network, because their direct contacts keep exerting influence on users that the bot does not reach directly. Highly active and well-connected bots, in contrast, may have a strong impact on their direct contacts, but these contacts grow too dissimilar from their network neighbors to further spread the bot's content. To demonstrate this effect, we included bots in Axelrod's seminal model of the dissemination of cultures and conducted simulation experiments demonstrating the strength of weak bots. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000129116
Veröffentlicht am 29.01.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technikzukünfte (ITZ)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2468-6964
KITopen-ID: 1000129116
Erschienen in Online social networks and media
Verlag Elsevier
Band 21
Seiten Art.-Nr.: 100106
Schlagwörter Social bots, Misinformation, Fake news, Social influence, Agent-based model
Nachgewiesen in Dimensions
Scopus
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