Research

Broadly I am interested in applied and theoretical machine learning. Some specific research interests are reinforcement learning, natural language processing, and the intersection of language models and reinforcement learning.


Publications

Subwords as Skills: Tokenization for Sparse-Reward Reinforcement Learning
David Yunis, Justin Jung, Falcon Dai, Matthew Walter
NeurIPS 2023 GenPlan Workshop


A novel approach to skill-generation in sparse-reward reinforcement learning by discretizing the action space through clustering and leveraging tokenization techniques, which significantly outperforms existing methods in challenging domains while reducing computation requirements.

Reports

Ensemble of Reinforcement Learned Agents for Stock Trading
Justin Jung, Joey Farrell
CMSC 35401: Machine Learning and Game Theory


An ensemble based strategy of reinforcement learned agents for stock trading.

Effects of Sunshine on Economic Productivity
Justin Jung, Justin Jones, Joey Farrell
ECMA 31320: Data Science and Econometric Methods


Utilize IV and fixed effect models to measure the impact of sunshine levels on worker productivity.