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ACE : Off-Policy Actor-Critic with Causality-Aware Entropy Regularization
Feb. 23, 2024, 5:42 a.m. | Tianying Ji, Yongyuan Liang, Yan Zeng, Yu Luo, Guowei Xu, Jiawei Guo, Ruijie Zheng, Furong Huang, Fuchun Sun, Huazhe Xu
cs.LG updates on arXiv.org arxiv.org
Abstract: The varying significance of distinct primitive behaviors during the policy learning process has been overlooked by prior model-free RL algorithms. Leveraging this insight, we explore the causal relationship between different action dimensions and rewards to evaluate the significance of various primitive behaviors during training. We introduce a causality-aware entropy term that effectively identifies and prioritizes actions with high potential impacts for efficient exploration. Furthermore, to prevent excessive focus on specific primitive behaviors, we analyze the …
actor actor-critic arxiv causality cs.ai cs.lg entropy policy regularization type
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