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Online Constrained Model-based Reinforcement Learning
Proceedings of the 33rd Conference on Uncertainty in Artificial Intelligence, PMLR R15:611-620, 2017.
Abstract
Applying reinforcement learning to robotic systems poses a number of challenging prob- lems. A key requirement is the ability to han- dle continuous state and action spaces while remaining within a limited time and resource budget. Additionally, for safe operation, the system must make robust decisions under hard constraints. To address these challenges, we propose a model based approach that com- bines Gaussian Process regression and Reced- ing Horizon Control. Using sparse spectrum Gaussian Processes, we extend previous work by updating the dynamics model incrementally from a stream of sensory data. This results in an agent that can learn and plan in real-time under non-linear constraints. We test our ap- proach on a cart pole swing-up environment and demonstrate the benefits of online learn- ing on an autonomous racing task. The envi- ronment’s dynamics are learned from limited training data and can be reused in new task in- stances without retraining.