RSVP for MISC talk by Eric Gilbert (3/27 @ 11:30 AM, Ehrlicher Room)
Blocklists and bans: two recent studies on online community moderation.


Since its earliest days, harassment and abuse have plagued the internet. In this talk, I will discuss two recent results from my lab around online community moderation, or the practices and algorithms employed by social platforms to limit abusive behavior. First, I will discuss a mixed methods study using Twitter blocklists to interrogate online harassment--the forms it takes, as well as tactics used by harassers. (A *blocklist* is a list of users that are preemptively blocked from interacting with a blocklist subscriber.) Second, I will report on our use of computational methods to assess the efficacy of Reddit's ban of two hate groups in 2015. I'll conclude the talk by briefly sketching ongoing work in my lab around moderation practices and tools.


Eric Gilbert is the John Derby Evans Associate Professor in the School of Information at the University of Michigan. Before coming to Michigan, he led the lab at Georgia Tech. Dr. Gilbert is a sociotechnologist, with a research focus on building and studying social media systems. His work has been supported by grants from a variety of companies, as well as the NSF, ARL, and DARPA. Dr. Gilbert's work has earned multiple best paper awards, and been covered by outlets including Wired, NPR and The New York Times. He is the recipient of an NSF CAREER award and the Sigma Xi Young Faculty Award. Professor Gilbert holds a BS in Math & CS and a PhD in CS—-both from from the University of Illinois at Urbana-Champaign

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