Do Androids Dream of Electric Fences? Safety-Aware Reinforcement Learning with Latent Shielding

• URL: http://arxiv.org/abs/2112.11490v1
• Date: Tue, 21 Dec 2021 19:11:34 GMT
• Title: Do Androids Dream of Electric Fences? Safety-Aware Reinforcement Learning with Latent Shielding
• Authors: Peter He, Borja G. Leon, Francesco Belardinelli
• Abstract summary: We present a novel approach to safety-aware deep reinforcement learning in high-dimensional environments called latent shielding. Latent shielding leverages internal representations of the environment learnt by model-based agents to "imagine" future trajectories and avoid those deemed unsafe.
• Score: 18.54615448101203
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The growing trend of fledgling reinforcement learning systems making their way into real-world applications has been accompanied by growing concerns for their safety and robustness. In recent years, a variety of approaches have been put forward to address the challenges of safety-aware reinforcement learning; however, these methods often either require a handcrafted model of the environment to be provided beforehand, or that the environment is relatively simple and low-dimensional. We present a novel approach to safety-aware deep reinforcement learning in high-dimensional environments called latent shielding. Latent shielding leverages internal representations of the environment learnt by model-based agents to "imagine" future trajectories and avoid those deemed unsafe. We experimentally demonstrate that this approach leads to improved adherence to formally-defined safety specifications.

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