Papers › Adaptive Meta-Learning for Identification of Rover-Terrain Dynamics

Adaptive Meta-Learning for Identification of Rover-Terrain Dynamics

21 Sep 2020arXiv:2009.10191archive 2025-07-28

S. Banerjee, J. Harrison, P. M. Furlong, M. Pavone

Rovers require knowledge of terrain to plan trajectories that maximize safety and efficiency. Terrain type classification relies on input from human operators or machine learning-based image classification algorithms. However, high level terrain classification is typically not sufficient to prevent incidents such as rovers becoming unexpectedly stuck in a sand trap; in these situations, online rover-terrain interaction data can be leveraged to accurately predict future dynamics and prevent further damage to the rover. This paper presents a meta-learning-based approach to adapt probabilistic predictions of rover dynamics by augmenting a nominal model affine in parameters with a Bayesian regression algorithm (P-ALPaCA). A regularization scheme is introduced to encourage orthogonality of nominal and learned features, leading to interpretable probabilistic estimates of terrain parameters in varying terrain conditions.

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