I am an Assistant Professor at CSE, College of Computing at Georgia Institute of Technology. I direct the Data Science research group. We create data science and applied machine learning solutions to improve safety, integrity, and well-being in the web and the society. Application include include social media, health, and security. I have pioneered the development of platform integrity algorithms that are being used in production at Flipkart (India's largest e-commerce platform) and inspired models used at Facebook and Twitter.
My current research interests are in neural recommender systems, graphs, secure and trustworthy AI, and AI for good.
Openings for students. If you are super motivated and desire to work on high-impact problems, please fill this form.
Prior to Georgia Tech, I was a visiting researcher at Google AI, a postdoctoral researcher at Stanford University, and a PhD student at the University of Maryland. I am a recipient of the Facebook Faculty Research Award, Adobe Faculty Research Award, Class of 1969 Teaching Fellow, ACM SIGKDD Doctoral Dissertation Award 2018 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.
For my complete list of publications, please refer to my Google Scholar profile.
Latest and Greatest (selected from the full list below)
List of all publications
Conference, Journal, and Other Publications
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.
Masters and Undergraduate Students:
Malicious, fake, fraud behavior and content: