We propose a principled algorithm for robust Bayesian filtering and smoothing
in nonlinear stochastic dynamic systems when both the transition function and
the measurement function are described by non-parametric Gaussian process (GP)
models. GPs are gaining increasing importance in signal processing, machine
learning, robotics, and control for representing unknown system functions by
posterior probability distributions. This modern way of "system identification"
is more robust than finding point estimates of a parametric function
representation. In this article, we present a principled algorithm for robust
analytic smoothing in GP dynamic systems, which are increasingly used in
robotics and control. Our numerical evaluations demonstrate the robustness of
the proposed approach in situations where other state-of-the-art Gaussian
filters and smoothers can fail.

提出了一种基于高斯过程模型的非参数鲁棒贝叶斯滤波和平滑方法，用于非线性随机动态系统的系统识别和控制。在机器学习，机器人和控制领域，这种现代的 “系统识别” 方法比参数化函数表示更具鲁棒性。数值评估表明，所提出的方法在其他最先进的高斯滤波器和平滑器无法处理的情况下表现出鲁棒性。