NEWS: I will join Georgia Institute of Technology as a tenure-track Assistant Professor from January 2020.
I am looking for outstanding Ph.D. students. If you are interested in working on high-impact problems, please drop me an email with your interests and CV.
My research lies in data science, graph mining, cybersecurity, and social computing on web-scale online social systems. My long-term goal is to create a safe and healthy online ecosystem for all. My AI algorithms extract knowledge from complex networks and multimedia content to model nuances of human and machine behavior, such as deception, trust, and dominance. My research is highly interdisciplinary and I closely collaborate with social scientists and linguists. I have pioneered the development of several user-centric, content-centric, and graph mining anti-abuse algorithms that are being used in production at Flipkart (India's largest e-commerce platform) and are being deployed at Wikipedia.
My current broad research thrusts include:
Currently, I am a postdoctoral researcher at Stanford University, working with Prof. Jure Leskovec. I am the recipient of 2018 ACM SIGKDD Doctoral Dissertation Award runner-up, WWW 2017 best paper award runner-up, Larry S. Davis Doctoral Dissertation Award 2017, and Dr. BC Roy Gold Medal 2013.
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)
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.