arXiv Machine Learning By Morgan Byrd, Maks Sorokin, Robert Wright, Sehoon Ha

Reward as Observation: Learning Reward-Based Policies for Rapid Adaptation

Read the original on arXiv Machine Learning →

The paper proposes a reward-based policy that relies only on rewards and actions, enabling zero‑shot transfer between source and target environments with entirely different observation spaces. Experiments on Pointmass, Cartpole, 2D Car Racing, and the Stretch robot in Habitat‑Sim show that the policy can adapt to new visual styles or 3D renderings without additional samples. Additionally, the reward policy can guide the training of an observation‑based policy in the target environment.

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