Student's -Filters for Noise Scale Estimation

F Tronarp, T Karvonen, S Särkkä - IEEE Signal Processing …, 2019 - ieeexplore.ieee.org
In this letter, we analyze certain student's t-filters for linear Gaussian systems with
misspecified noise covariances. It is shown that under appropriate conditions, the filter both …

Fully symmetric kernel quadrature

T Karvonen, S Sarkka - SIAM Journal on Scientific Computing, 2018 - SIAM
Kernel quadratures and other kernel-based approximation methods typically suffer from
prohibitive cubic time and quadratic space complexity in the number of function evaluations …

[HTML][HTML] A flexible robust Student's t-based multimodel approach with maximum Versoria criterion

C Shen, L Mihaylova - Signal Processing, 2021 - Elsevier
The performance of the state estimation for Gaussian state space models can be degraded if
the models are affected by the non-Gaussian process and measurement noises with …

Symmetry exploits for Bayesian cubature methods

T Karvonen, S Särkkä, CJ Oates - Statistics and Computing, 2019 - Springer
Bayesian cubature provides a flexible framework for numerical integration, in which a priori
knowledge on the integrand can be encoded and exploited. This additional flexibility …

Robust Gaussian Process Quadrature Diffusion Filtering for Distributed Sensor Networks

L Song, Z Jing, P Dong, K Shen - IEEE Sensors Journal, 2024 - ieeexplore.ieee.org
In this article, we propose a robust diffusion nonlinear filtering algorithm based on Student-t
distribution for distributed sensor networks (DSNs). Existing distributed state estimation …

Improved calibration of numerical integration error in sigma-point filters

J Prüher, T Karvonen, CJ Oates… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The sigma-point filters, such as the unscented Kalman filter, are popular alternatives to the
ubiquitous extended Kalman filter. The classical quadrature rules used in the sigma-point …

Double-layer cubature Kalman filter for nonlinear estimation

F Yang, Y Luo, L Zheng - Sensors, 2019 - mdpi.com
The cubature Kalman filter (CKF) has poor performance in strongly nonlinear systems while
the cubature particle filter has high computational complexity induced by stochastic …

A probabilistic diagnostic for Laplace approximations: Introduction and experimentation

S McDonald, D Campbell - arXiv preprint arXiv:2411.01697, 2024 - arxiv.org
Many models require integrals of high-dimensional functions: for instance, to obtain
marginal likelihoods. Such integrals may be intractable, or too expensive to compute …

Tractable non-Gaussian representations in dynamic data driven coherent fluid mapping

S Ravela - Handbook of Dynamic Data Driven Applications …, 2018 - Springer
This chapter discusses the elements of a Dynamic Data Driven Applications System in the
context of mapping coherent environmental fluids using autonomous small unmanned …

A normal-Gamma filter for linear systems with heavy-tailed measurement noise

L Zhang, J Lan, XR Li - 2018 21st International Conference on …, 2018 - ieeexplore.ieee.org
This paper considers state estimation of stochastic systems with outliers in measurements.
Traditional filters, which assume Gaussian-distributed measurement noise, may have …