Nonlinear Bayesian filters for training recurrent neural networks

In this paper, we present nonlinear Bayesian filters for training recurrent neural networks with a special emphasis on a novel, more accurate, derivative-free member of the approximate Bayesian filter family called the cubature Kalman filter. We discuss the theory of Bayesian filters, which is rooted in the state-space modeling of the dynamic system in question and the linear estimation principle. For improved numerical stability and optimal …