Safe Exploration via Policy Priors

Fuente: arXiv
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Auteurs principaux: Wendl, Manuel, As, Yarden, Prajapat, Manish, Pollak, Anton, Coros, Stelian, Krause, Andreas
Format: Preprint
Publié: 2026
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author Wendl, Manuel
As, Yarden
Prajapat, Manish
Pollak, Anton
Coros, Stelian
Krause, Andreas
author_facet Wendl, Manuel
As, Yarden
Prajapat, Manish
Pollak, Anton
Coros, Stelian
Krause, Andreas
contents Safe exploration is a key requirement for reinforcement learning (RL) agents to learn and adapt online, beyond controlled (e.g. simulated) environments. In this work, we tackle this challenge by utilizing suboptimal yet conservative policies (e.g., obtained from offline data or simulators) as priors. Our approach, SOOPER, uses probabilistic dynamics models to optimistically explore, yet pessimistically fall back to the conservative policy prior if needed. We prove that SOOPER guarantees safety throughout learning, and establish convergence to an optimal policy by bounding its cumulative regret. Extensive experiments on key safe RL benchmarks and real-world hardware demonstrate that SOOPER is scalable, outperforms the state-of-the-art and validate our theoretical guarantees in practice.
format Preprint
id arxiv_https___arxiv_org_abs_2601_19612
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Safe Exploration via Policy Priors
Wendl, Manuel
As, Yarden
Prajapat, Manish
Pollak, Anton
Coros, Stelian
Krause, Andreas
Machine Learning
Artificial Intelligence
Robotics
Safe exploration is a key requirement for reinforcement learning (RL) agents to learn and adapt online, beyond controlled (e.g. simulated) environments. In this work, we tackle this challenge by utilizing suboptimal yet conservative policies (e.g., obtained from offline data or simulators) as priors. Our approach, SOOPER, uses probabilistic dynamics models to optimistically explore, yet pessimistically fall back to the conservative policy prior if needed. We prove that SOOPER guarantees safety throughout learning, and establish convergence to an optimal policy by bounding its cumulative regret. Extensive experiments on key safe RL benchmarks and real-world hardware demonstrate that SOOPER is scalable, outperforms the state-of-the-art and validate our theoretical guarantees in practice.
title Safe Exploration via Policy Priors
topic Machine Learning
Artificial Intelligence
Robotics
url https://arxiv.org/abs/2601.19612