幾何学的接触流:ダイナミクスと制御のための接触同相写像
Geometric Contact Flows: Contactomorphisms for Dynamics and Control
リーマン幾何と接触幾何を帰納バイアスとして用い、接触ハミルトンモデルと接触同相写像のアンサンブルで力の交換や散逸を含む複雑なダイナミクスを学習・制御するフレームワークを提案。
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著者: Andrea Testa, Søren Hauberg, Tamim Asfour, Leonel Rozo
分類: cs.RO, cs.LG, math.DG
原文アブストラクト
Accurately modeling and predicting complex dynamical systems, particularly those involving force exchange and dissipation, is crucial for applications ranging from fluid dynamics to robotics, but presents significant challenges due to the intricate interplay of geometric constraints and energy transfer. This paper introduces Geometric Contact Flows (GFC), a novel framework leveraging Riemannian and Contact geometry as inductive biases to learn such systems. GCF constructs a latent contact Hamiltonian model encoding desirable properties like stability or energy conservation. An ensemble of contactomorphisms then adapts this model to the target dynamics while preserving these properties. This ensemble allows for uncertainty-aware geodesics that attract the system's behavior toward the data support, enabling robust generalization and adaptation to unseen scenarios. Experiments on learning dynamics for physical systems and for controlling robots on interaction tasks demonstrate the effectiveness of our approach.
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