Search Results for author: Ondřej Straka

Found 6 papers, 0 papers with code

Hybrid Neural Network Augmented Physics-based Models for Nonlinear Filtering

no code implementations13 Apr 2022 Tales Imbiriba, Ahmet Demirkaya, Jindřich Duník, Ondřej Straka, Deniz Erdoğmuş, Pau Closas

In this paper we present a hybrid neural network augmented physics-based modeling (APBM) framework for Bayesian nonlinear latent space estimation.

Expectation-Maximization Algorithm for Identification of Mesh-based Compartment Thermal Model of Power Modules

no code implementations12 Jun 2020 Jakub Ševčík, Václav Šmídl, Ondřej Straka

Recently, we have proposed a linear time invariant state-space thermal model based on a compartment representation and its identification procedure that is based on the Expectation-Maximization algorithm from incomplete temperature data.

Management

Improved Calibration of Numerical Integration Error in Sigma-Point Filters

no code implementations28 Nov 2018 Jakub Prüher, Toni Karvonen, Chris. J. Oates, Ondřej Straka, Simo Särkkä

The sigma-point filters, such as the UKF, which exploit numerical quadrature to obtain an additional order of accuracy in the moment transformation step, are popular alternatives to the ubiquitous EKF.

Numerical Integration Uncertainty Quantification

Student-t Process Quadratures for Filtering of Non-Linear Systems with Heavy-Tailed Noise

no code implementations15 Mar 2017 Jakub Prüher, Filip Tronarp, Toni Karvonen, Simo Särkkä, Ondřej Straka

Advantage of the Student- t process quadrature over the traditional Gaussian process quadrature, is that the integral variance depends also on the function values, allowing for a more robust modelling of the integration error.

Gaussian Process Quadrature Moment Transform

no code implementations5 Jan 2017 Jakub Prüher, Ondřej Straka

Computation of moments of transformed random variables is a problem appearing in many engineering applications.

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