Regularity as Intrinsic Reward for Free Play
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Abstract (arXiv)
We propose regularity as a novel reward signal for intrinsically-motivated reinforcement learning. Taking inspiration from child development, we postulate that striving for structure and order helps guide exploration towards a subspace of tasks that are not favored by naive uncertainty-based intrinsic rewards. Our generalized formulation of Regularity as Intrinsic Reward (RaIR) allows us to operationalize it within model-based reinforcement learning. In a synthetic environment, we showcase the plethora of structured patterns that can emerge from pursuing this regularity objective. We also demonstrate the strength of our method in a multi-object robotic manipulation environment. We incorporate RaIR into free play and use it to complement the model's epistemic uncertainty as an intrinsic reward. Doing so, we witness the autonomous construction of towers and other regular structures during free play, which leads to a substantial improvement in zero-shot downstream task performance on assembly tasks.
Key facts. Cited by 5 papers in the map (data through 7 Oct 2026). Builds on 30 of its 51 references that are in the map. First posted on arXiv 3 Dec 2023.
Builds on
30 of 51 references.
References · 30
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18 more
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Built on by
Citing papers per year: 2025: 4; 2026: 1.
5 papers.
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- 2025Skill Learning via Policy Diversity Yields Identifiable Representations for Reinforcement Learning19 Jul 2025
- 2025SENSEI: Semantic Exploration Guided by Foundation Models to Learn Versatile World Models3 Mar 2025
- 2025ReaLJam: Real-Time Human-AI Music Jamming with Reinforcement Learning-Tuned Transformers28 Feb 2025