Learning Dynamics under Environmental Constraints via Measurement-Induced Bundle Structures

📅 2025-05-26
📈 Citations: 0
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Learning continuous dynamics under unknown, locally measurable, and uncertain environmental constraints remains challenging. Method: This paper proposes a geometric modeling framework based on fiber bundles. It is the first to naturally induce a fiber bundle structure directly from sensor measurements, unifying local constraints, perception data, and dynamics modeling; further, it designs measurement-aware adaptive Control Barrier Functions (CBFs) that theoretically guarantee both constraint satisfaction and learning convergence—dynamically adjustable according to perception quality. The approach integrates fiber bundle differential geometry, Neural ODEs, and uncertainty-aware embedding. Results: Experiments demonstrate that, under limited or uncertain perception, the method improves dynamics learning efficiency by over 40% and reduces constraint violation rates by more than 90%, significantly outperforming conventional filtering and global-constraint-based methods.

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📝 Abstract
Learning unknown dynamics under environmental (or external) constraints is fundamental to many fields (e.g., modern robotics), particularly challenging when constraint information is only locally available and uncertain. Existing approaches requiring global constraints or using probabilistic filtering fail to fully exploit the geometric structure inherent in local measurements (by using, e.g., sensors) and constraints. This paper presents a geometric framework unifying measurements, constraints, and dynamics learning through a fiber bundle structure over the state space. This naturally induced geometric structure enables measurement-aware Control Barrier Functions that adapt to local sensing (or measurement) conditions. By integrating Neural ODEs, our framework learns continuous-time dynamics while preserving geometric constraints, with theoretical guarantees of learning convergence and constraint satisfaction dependent on sensing quality. The geometric framework not only enables efficient dynamics learning but also suggests promising directions for integration with reinforcement learning approaches. Extensive simulations demonstrate significant improvements in both learning efficiency and constraint satisfaction over traditional methods, especially under limited and uncertain sensing conditions.
Problem

Research questions and friction points this paper is trying to address.

Learning unknown dynamics under local uncertain environmental constraints
Exploiting geometric structure in local measurements for dynamics learning
Ensuring constraint satisfaction and learning convergence with limited sensing
Innovation

Methods, ideas, or system contributions that make the work stand out.

Fiber bundle structure unifies measurements and constraints
Measurement-aware Control Barrier Functions adapt locally
Neural ODEs preserve geometric constraints continuously
Dongzhe Zheng
Dongzhe Zheng
Princeton University
Robotics
W
Wenjie Mei
School of Automation and Key Laboratory of MCCSE of Ministry of Education, Southeast University, Nanjing, China