A Quantitative Approach to Understanding Online Antisemitism∗ Savvas Zannettouy, Joel Finkelstein?+, Barry Bradlyn, Jeremy Blackburnz + yMax Planck Institute for Informatics, ?Network Contagion Research Institute, Princeton University University of Illinois at Urbana-Champaign, zBinghamton University
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[email protected] Abstract disseminate information in weaponized form [60], often using humor and taking advantage of the scale and speed of commu- A new wave of growing antisemitism, driven by fringe Web nication the Web makes possible [31, 39, 100, 98, 99, 66, 97]. communities, is an increasingly worrying presence in the Recently, these fringe groups have begun to weaponize digi- socio-political realm. The ubiquitous and global nature of the tal information on social media [100], in particular the use of Web has provided tools used by these groups to spread their weaponized humor in the form of memes [99]. ideology to the rest of the Internet. Although the study of an- While the online activities of the alt-right are cause for con- tisemitism and hate is not new, the scale and rate of change of cern, this behavior is not limited to the Web: there has been a online data has impacted the efficacy of traditional approaches recent spike in hate crimes in the United States [19], a general to measure and understand these troubling trends. proliferation of fascist and white power groups [86], a substan- In this paper, we present a large-scale, quantitative study tial increase in white nationalist propaganda on college cam- of online antisemitism. We collect hundreds of million posts puses [3].