Hi, I'm Juan

Welcome to my website!



Juan Sebastian Rojas

juan.rojas[at]mail.utoronto.ca

About Me


Hi, I'm Juan! I'm a PhD student at the University of Toronto, where I conduct research as part of the Dynamic Optimization & Reinforcement Learning Lab. My research interests lie in the theory and application of artificial intelligence (AI) in real-world, safety-critical settings. My current research focuses on developing machine learning frameworks and algorithms that incorporate the notions of risk and safety into the learning, planning, and decision-making processes of autonomous agents operating in dynamic, uncertain, and safety-critical environments.


Biography

I hold a degree in engineering with a minor in mathematics from the University of Alberta. I have over five years of experience in industry, where I've contributed to projects that span a broad range of topics, including machine learning, robotics, software engineering, and data science. In my spare time, I enjoy swimming, watching movies, and learning new things.


Preprints


June 2025 - A Differential Perspective on Distributional Reinforcement Learning

Juan S. Rojas, Chi-Guhn Lee
Paper

Publications


August 2025 - Burning RED: Unlocking Subtask-Driven Reinforcement Learning and Risk-Awareness in Average-Reward Markov Decision Processes

Reinforcement Learning Journal
Juan S. Rojas, Chi-Guhn Lee
Paper Code


September 2022 - Comparison of Machine Learning Models for Quantitative Risk Modelling of Pipeline Systems

ASME International Pipeline Conference
Daryl Bandstra, Juan S. Rojas, Alex Fraser, Mari Shironishi
Paper


September 2022 - Subset Simulation of Pipeline Corrosion, Crack, and Dent Defects Considering Multiple Limit States With Large-Scale Validation

ASME International Pipeline Conference
Daryl Bandstra, Alex Fraser, Juan S. Rojas
Paper

Talks


February 2019 - LQR Control of an Autonomous Underwater Vehicle

MATLAB and Simulink Robotics Arena
Juan S. Rojas, Nathan Liebrecht, Connell D'Souza
Video Code