Proximal Policy Gradient: PPO with Policy Gradient. - Ju-Seung Byun; Byungmoon Kim; Huamin Wang (CoRR, 2020)

Training Transition Policies via Distribution Matching for Complex Tasks. - Ju-Seung Byun; Andrew Perrault (ICLR, 2022)

ARES: Alternating Reinforcement Learning and Supervised Fine-Tuning for Enhanced Multi-Modal Chain-of-Thought Reasoning Through Diverse AI Feedback. - Ju-Seung Byun; Jiyun Chun; Jihyung Kil; Andrew Perrault (EMNLP, 2024)

Reinforcement Learning for Fine-tuning Text-to-speech Diffusion Models. - Jingyi Chen; Ju-Seung Byun; Micha Elsner; Andrew Perrault (CoRR, 2024)

Symmetric Reinforcement Learning Loss for Robust Learning on Diverse Tasks and Model Scales. - Ju-Seung Byun; Andrew Perrault (CoRR, 2024)

Normality-Guided Distributional Reinforcement Learning for Continuous Control. - Ju-Seung Byun; Andrew Perrault (Trans. Mach. Learn. Res., 2025)