I am an Assistant Professor at the College of Computing at Georgia Institute of Technology. I direct the CLAWS Data Science research group. We invent data science and applied machine learning solutions for cyber informatics to solve the challenging problems on the web and in the society. My research interests are building neural user models, network science, and data science methods. Application domains include social media, health, and security.
Prior to Georgia Tech, I was a visiting research scientist at Google AI, and a postdoctoral researcher at Stanford University, working with Prof. Jure Leskovec. I am the recipient of the 2020 Adobe Faculty Research Award, 2018 ACM SIGKDD Doctoral Dissertation Award runner-up, WWW 2017 Best Paper Award runner-up, Best of ICDM 2016, Larry S. Davis Doctoral Dissertation Award 2017, and Dr. BC Roy Gold Medal. I have pioneered the development of anti-abuse algorithms that are being used in production at Flipkart (India's largest e-commerce platform) and Wikipedia.
My complete publication list: Google Scholar
Included in the curriculum at: University of Waterloo
Press: Russian spam accounts are still a big problem for Reddit (Engadget), What Reddit Tells Us About Political Coalitions and Conflicts (The Atlantic), Most Reddit battles are started by 1 percent of communities (Engadget), Tiny percent of Reddit communities spark majority of conflicts (CNET), One Percent of Subreddits Are Responsible for Most of the Raids on Reddit (VICE), and more by Inverse, TheNextWeb, theregister.co.uk
Included in the curriculum at: Stanford University
Best Paper Award Honorable Mention
Documentary: Familiar Shapes by Heather D. Freeman
Press: Sock puppet accounts unmasked by the way they write and post (New Scientist), Tool unmasks online puppeteers (New Scientist, print version), Spotting sockpuppets with science (TechCrunch), Sock Puppet Accounts on the Internet Getting You Down? Here’s How to Spot Them (WOWscience)
Best of ICDM 2016.
Top 10 most cited papers of ICDM in the last 5 years. [Link]
Included in the curriculum at: UIUC, University of Waterloo, McGill University, Texas A&M University, University of Hawaii, University of Freiburg, Leibniz University, Hannover, University of Waterloo, University of Alberta, University of Wellington, New Zealand, and Bari BigData winter school 2017.
Press: Should you worry about people who are too polite? (CNN), When Diplomacy Leads to Betrayal (The Wall Street Journal), Here’s a Good Reason to Be Wary of Overly Polite People (New York Magazine) and more here.
For all publications, please see my Google Scholar.
Multiple openings for students. If you are super motivated and desire to work on high-impact problems, please send me an email with your interests and CV.
PhD: Ph.D. application details are here.
If you are a masters or undergraduate student at Georgia Tech, please send me an email.
Malicious, fake, fraud behavior and content: