LEMMA: A Data-Driven Approach to Modeling the Spread of Extremism Over Online Platforms
LEMMA: A Data-Driven Approach to Modeling the Spread of Extremism Over Online Platforms
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Date
2022
Authors
Fream, Mitchell
Hayes, Nathan
Kochar, Sahil
Kolbeck, Paul
Schneider, Charlie
Schwartz, Russell
Sharon, Olivia
Shen, Yuang
Weiss, Winslow
Wolle, Robert
Advisor
Jabin, Pierre-Emmanuel
Citation
DRUM DOI
Abstract
The online spread of extremist ideas has been a growing problem. Team LEMMA has
worked to quantitatively model the spread of extremist ideas over Reddit in order to gain insight
into how they may spread. A modest dataset of Reddit comments were manually rated on the
level of extremist rhetoric present and used to train a machine learning algorithm to automatically
classify large swaths of Reddit data. These ratings were then fit to a predictive agent-based model
with the hopes of better understanding past trends and potentially forecasting future spread of
extremism.
Notes
Gemstone Team LEMMA