My research focuses on machine learning, data science, and graph mining to study on human behavior in web-scale social systems.
I am a postdoctoral researcher at Stanford University, working with Prof. Jure Leskovec. Briefly:
(1) I develop data science methods to make fundamental discoveries that have advanced our scientific understanding of disinformation and malicious users, that help us to build better detection models, and
(2) I develop machine learning models for large graphs datasets to model and predict bad behavior, leading to tools that are actively used at Flipkart, Reddit, and Wikipedia.
My PhD dissertation (Computer Science, University of Maryland) was awarded the prestigious 2018 ACM SIGKDD Doctoral Dissertation Award runner-up and Larry S. Davis Doctoral Dissertation Award. Prior to that, I was awarded Dr. BC Roy Gold Medal by IIT, Kharagpur.
NEW! Check this news article with a summary of my research.
NEW! Thrilled to recieve the 2018 ACM SIGKDD Doctoral Dissertation Award runner-up!
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.