I am an Assistant Professor at CSE, College of Computing at Georgia Institute of Technology. I direct the CLAWS Data Science research group. I develop data science and machine learning solutions for the pressing challenges pertaining to the safety, integrity, and well-being of users and communities on web and social media, and which impact public health, democracy, science, and society. I investigate the social and technological factors, such as the role of recommender systems, behind these problems. I also work to quantify the adversarial robustness of critical cybersafety methods. I create methods to improve the current technology and innovate the next-generation of adversarially-robust technology that can empower users and improve cybersafety broadly throughout the internet. Towards these ends, I have pioneered the development of platform integrity algorithm that are being used in production at Flipkart (India's largest e-commerce platform, acquired by Walmart) and have influenced Twitter's Birdwatch platform (comunity-driven misinformation detection platform) and Facebook's TIES system (integrity model used for misinformation, fake accounts, and ads payment risk detection).
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, Larry S. Davis Doctoral Dissertation Award 2017, and Dr. BC Roy Gold Medal.
My research interests are in web and social media safety and integrity (misinformation, hate, fraud), trustworthy AI, recommender systems, graphs. Postdoc opening. There is an opening for one postdoc in my group, who will get to work on very exciting problems in recommendation systems and/or graphs. There will also be opportunities to work with real industry data. If you have done research in the recommendation systems area, please send me your CV asap at firstname.lastname@example.org.
My research interests are in web and social media safety and integrity (misinformation, hate, fraud), trustworthy AI, recommender systems, graphs.
Postdoc opening. There is an opening for one postdoc in my group, who will get to work on very exciting problems in recommendation systems and/or graphs. There will also be opportunities to work with real industry data. If you have done research in the recommendation systems area, please send me your CV asap at email@example.com.
For my complete list of publications, please refer to my Google Scholar profile.
Highlights (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: