Identifying Malicious Actors in Online Platforms
There are now thousands of online social and commercial platforms available on the web. Yet, many of these face specific challenges causes by malicious actors such as trolls on Slashdot and Twitter, bots on Twitter, vandals on Wikipedia, sockpuppets in online discussion forums, and review fraud on e-commerce sites. In this talk, I will quickly provide some examples of the challenges caused by such malicious actors and then focus on two specific case studies.