Proximal Policy Optimization
Proximal Policy Optimization (PPO) is a reinforcement learning algorithm used to train agents to make optimal decisions in complex environments, with a current research focus on improving its efficiency and robustness. Recent work explores enhancements such as refined credit assignment methods (e.g., VinePPO), incorporation of human feedback and safety mechanisms (e.g., HI-PPO, PRPO), and addressing challenges in high-dimensional spaces and sample efficiency through techniques like diffusion model integration. These advancements are significant for various applications, including robotics, autonomous systems, and large language model alignment, where PPO's ability to learn effective policies from interactions with the environment is crucial.
Papers
$P^{3}O$: Transferring Visual Representations for Reinforcement Learning via Prompting
Guoliang You, Xiaomeng Chu, Yifan Duan, Jie Peng, Jianmin Ji, Yu Zhang, Yanyong Zhang
A Hierarchical Hybrid Learning Framework for Multi-agent Trajectory Prediction
Yujun Jiao, Mingze Miao, Zhishuai Yin, Chunyuan Lei, Xu Zhu, Linzhen Nie, Bo Tao
Efficient Planning of Multi-Robot Collective Transport using Graph Reinforcement Learning with Higher Order Topological Abstraction
Steve Paul, Wenyuan Li, Brian Smyth, Yuzhou Chen, Yulia Gel, Souma Chowdhury
Muti-Agent Proximal Policy Optimization For Data Freshness in UAV-assisted Networks
Mouhamed Naby Ndiaye, El Houcine Bergou, Hajar El Hammouti