Search Results for author: Xiaoyi Cai

Found 5 papers, 3 papers with code

PIETRA: Physics-Informed Evidential Learning for Traversing Out-of-Distribution Terrain

no code implementations4 Sep 2024 Xiaoyi Cai, James Queeney, Tong Xu, Aniket Datar, Chenhui Pan, Max Miller, Ashton Flather, Philip R. Osteen, Nicholas Roy, Xuesu Xiao, Jonathan P. How

Self-supervised learning is a powerful approach for developing traversability models for off-road navigation, but these models often struggle with inputs unseen during training.

Self-Supervised Learning

CGD: Constraint-Guided Diffusion Policies for UAV Trajectory Planning

no code implementations2 May 2024 Kota Kondo, Andrea Tagliabue, Xiaoyi Cai, Claudius Tewari, Olivia Garcia, Marcos Espitia-Alvarez, Jonathan P. How

Although the resulting NN policies are effective at quickly generating trajectories similar to those from the expert, (1) their output does not explicitly account for dynamic feasibility, and (2) the policies do not accommodate changes in the constraints different from those used during training.

Imitation Learning Trajectory Planning

EVORA: Deep Evidential Traversability Learning for Risk-Aware Off-Road Autonomy

1 code implementation10 Nov 2023 Xiaoyi Cai, Siddharth Ancha, Lakshay Sharma, Philip R. Osteen, Bernadette Bucher, Stephen Phillips, Jiuguang Wang, Michael Everett, Nicholas Roy, Jonathan P. How

For uncertainty quantification, we efficiently model both aleatoric and epistemic uncertainty by learning discrete traction distributions and probability densities of the traction predictor's latent features.

Uncertainty Quantification

Risk-Aware Off-Road Navigation via a Learned Speed Distribution Map

1 code implementation25 Mar 2022 Xiaoyi Cai, Michael Everett, Jonathan Fink, Jonathan P. How

Motion planning in off-road environments requires reasoning about both the geometry and semantics of the scene (e. g., a robot may be able to drive through soft bushes but not a fallen log).

Motion Planning Unity

A Distributed Pipeline for Scalable, Deconflicted Formation Flying

1 code implementation4 Mar 2020 Parker C. Lusk, Xiaoyi Cai, Samir Wadhwania, Aleix Paris, Kaveh Fathian, Jonathan P. How

While solutions using onboard localization address the dependency on external infrastructure, the associated coordination strategies typically lack collision avoidance and scalability.

Robotics Multiagent Systems

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