Scalable Exploration for High-Dimensional Continuous Control via Value-Guided Flow

• URL: http://arxiv.org/abs/2601.19707v1
• Date: Tue, 27 Jan 2026 15:30:10 GMT
• Title: Scalable Exploration for High-Dimensional Continuous Control via Value-Guided Flow
• Authors: Yunyue Wei, Chenhui Zuo, Yanan Sui,
• Abstract summary: We introduce Q-guided Flow Exploration (Qflex), a scalable reinforcement learning method that conducts exploration directly in the native high-dimensional action space.<n>During training, Qflex traverses actions from a learnable source distribution along a probability flow induced by the learned value function, aligning exploration with task-relevant gradients rather than isotropic noise.<n>Our results indicate that value-guided flows offer a principled and practical route to exploration at scale.
• Score: 12.08071565601655
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Controlling high-dimensional systems in biological and robotic applications is challenging due to expansive state-action spaces, where effective exploration is critical. Commonly used exploration strategies in reinforcement learning are largely undirected with sharp degradation as action dimensionality grows. Many existing methods resort to dimensionality reduction, which constrains policy expressiveness and forfeits system flexibility. We introduce Q-guided Flow Exploration (Qflex), a scalable reinforcement learning method that conducts exploration directly in the native high-dimensional action space. During training, Qflex traverses actions from a learnable source distribution along a probability flow induced by the learned value function, aligning exploration with task-relevant gradients rather than isotropic noise. Our proposed method substantially outperforms representative online reinforcement learning baselines across diverse high-dimensional continuous-control benchmarks. Qflex also successfully controls a full-body human musculoskeletal model to perform agile, complex movements, demonstrating superior scalability and sample efficiency in very high-dimensional settings. Our results indicate that value-guided flows offer a principled and practical route to exploration at scale.

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