Designing Rewards for Fast Learning. - Henry Sowerby; Zhiyuan Zhou; Michael L. Littman (CoRR, 2022)

Specifying Behavior Preference with Tiered Reward Functions. - Zhiyuan Zhou; Henry Sowerby; Michael L. Littman (CoRR, 2022)

Tiered Reward: Designing Rewards for Specification and Fast Learning of Desired Behavior. - Zhiyuan Zhou; Shreyas Sundara Raman; Henry Sowerby; Michael Littman 002 (RLJ, 2024)