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Lucas Barcelos

4 accepted papers

2025

Diverse Motion Planning with Stein Diffusion Trajectory Inference

ICRA 2025

Acquiring prior knowledge of trajectory distributions in specific environments can significantly expedite the optimisation process in robot motion planning. Leveraging successful past plans and utilising trajectory generative models as priors offers a clear advantage. Previous studies have proposed

Cited by 6SourceScholar
2021

Dual Online Stein Variational Inference for Control and Dynamics

RSS 2021poster

Model predictive control (MPC) schemes have a proven track record for delivering aggressive and robust performance in many challenging control tasks; coping with nonlinear system dynamics; constraints; and observational noise. Despite their success; these methods often rely on simple control distrib…

2020

DISCO: Double Likelihood-free Inference Stochastic Control

ICRA 2020poster

Accurate simulation of complex physical systems enables the development, testing, and certification of control strategies before they are deployed into the real systems. As simulators become more advanced, the analytical tractability of the differential equations and associated numerical solvers inc…

Cited by 15SourcecodeScholar
2020

Online BayesSim for Combined Simulator Parameter Inference and Policy Improvement

IROS 2020poster

Recent advancements in Bayesian likelihood-free inference enables a probabilistic treatment for the problem of estimating simulation parameters and their uncertainty given sequences of observations. Domain randomization can be performed much more effectively when a posterior distribution provides th…

Cited by 16SourceScholar