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Rafael Possas

4 accepted papers

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
2019

BayesSim: Adaptive Domain Randomization Via Probabilistic Inference for Robotics Simulators

RSS 2019poster

We introduce BayesSim, a framework for robotics simulations allowing a full Bayesian treatment for the parameters of the simulator. As simulators become more sophisticated and able to represent the dynamics more accurately, fundamental problems in robotics such as motion planning and perception can…