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	Semi-supervised Reinforcement Learning	自己教師あり強化学習
分野	深層学習	深層学習
系統	Machine learning	Machine learning
提唱年	2020s	2020
提唱者	Multiple contributors (Laskin, Srinivas, Abbeel et al.)	Laskin, M.; Srinivas, A.; Abbeel, P. (and contemporaries)
種類	Semi-supervised training paradigm for RL agents	Self-supervised auxiliary-task learning for RL
原典	Zhan, X., Zhu, X., & Shi, H. (2022). Deepthermal: Combustion optimization for thermal power generating units using offline reinforcement learning. Proceedings of the AAAI Conference on Artificial Intelligence, 36(4), 4680–4688.	Laskin, M., Srinivas, A., & Abbeel, P. (2020). CURL: Contrastive Unsupervised Representations for Reinforcement Learning. Proceedings of the 37th International Conference on Machine Learning (ICML), PMLR 119, 5639–5650.
別名	SSRL, semi-supervised RL, RL with unlabeled data, label-efficient reinforcement learning	SSL-RL, self-supervised RL, representation-based reinforcement learning, auxiliary-task RL
関連	6	4
概要	Semi-supervised reinforcement learning (SSRL) combines standard reinforcement learning — where an agent learns from sparse reward signals — with semi-supervised techniques that extract structure from unlabeled environment interactions. The goal is to improve sample efficiency and generalization when reward feedback is costly, delayed, or available only for a fraction of the agent's experience.	Self-supervised Reinforcement Learning (SSL-RL) augments standard RL training with self-supervised auxiliary objectives — such as contrastive, predictive, or data-augmentation-based tasks — applied to the agent's own experience. These objectives improve the quality of learned representations without requiring extra human labels, enabling faster convergence and better sample efficiency, especially in high-dimensional observation spaces like raw pixels.