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DrS: Learning Reusable Dense Rewards for Multi-Stage Tasks
April 26, 2024, 4:42 a.m. | Tongzhou Mu, Minghua Liu, Hao Su
cs.LG updates on arXiv.org arxiv.org
Abstract: The success of many RL techniques heavily relies on human-engineered dense rewards, which typically demand substantial domain expertise and extensive trial and error. In our work, we propose DrS (Dense reward learning from Stages), a novel approach for learning reusable dense rewards for multi-stage tasks in a data-driven manner. By leveraging the stage structures of the task, DrS learns a high-quality dense reward from sparse rewards and demonstrations if given. The learned rewards can be …
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