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The Effect of extremist violence on hateful speech online

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dc.contributor.author Olteanu, Alexandra
dc.contributor.author Castillo, Carlos
dc.contributor.author Boy, Jeremy
dc.contributor.author Varshney, Kush
dc.date.accessioned 2019-04-01T17:37:50Z
dc.date.available 2019-04-01T17:37:50Z
dc.date.issued 2018
dc.identifier.citation Olteanu A, Castillo C, Boy J, Varshney K. The Effect of extremist violence on hateful speech online. In: Proceedings of the Twelfth International AAAI Conference on Web and Social Media (ICWSM 2018);2018 Jun 25-28; Stanford, California. Palo Alto, California: AAAI; 2018. p. 221-30.
dc.identifier.uri http://hdl.handle.net/10230/37020
dc.description Comunicació presentada a: The Twelfth International AAAI Conference on Web and Social Media (ICWSM 2018), celebrat del 25 al 28 de juny de 2018 a Stanford, California.
dc.description.abstract User-generated content online is shaped by many factors, including endogenous elements such as platform affordances and norms, as well as exogenous elements, in particular significant events. These impact what users say, how they say it, and when they say it. In this paper, we focus on quantifying the impact of violent events on various types of hate speech, from offensive and derogatory to intimidation and explicit calls for violence. We anchor this study in a series of attacks involving Arabs and Muslims as perpetrators or victims, occurring in Western countries, that have been covered extensively by news media. These attacks have fueled intense policy debates around immigration in various fora, including online media, which have been marred by racist prejudice and hateful speech. The focus of our research is to model the effect of the attacks on the volume and type of hateful speech on two social media platforms, Twitter and Reddit. Among other findings, we observe that extremist violence tends to lead to an increase in online hate speech, particularly on messages directly advocating violence. Our research has implications for the way in which hate speech online is monitored and suggests ways in which it could be fought.
dc.description.sponsorship This work was conducted under the auspices of the IBM Science for Social Good initiative. C. Castillo is partially funded by La Caixa project LCF/PR/PR16/11110009.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Association for the Advancement of Artificial Intelligence (AAAI)
dc.relation.ispartof Proceedings of the Twelfth International AAAI Conference on Web and Social Media (ICWSM 2018);2018 Jun 25-28; Stanford, California. Palo Alto, California: AAAI; 2018. p. 221-30.
dc.rights © 2018, Association for the Advancement of Artificial Intelligence (www.aaai.org)
dc.title The Effect of extremist violence on hateful speech online
dc.type info:eu-repo/semantics/conferenceObject
dc.subject.keyword Social media
dc.subject.keyword Hate speech
dc.subject.keyword Causal inference
dc.subject.keyword Time series
dc.subject.keyword Twitter
dc.subject.keyword Reddit
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/acceptedVersion


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