Search Results for author: Vojtech Kejzlar

Found 4 papers, 1 papers with code

Model orthogonalization and Bayesian forecast mixing via Principal Component Analysis

no code implementations17 May 2024 Pablo Giuliani, Kyle Godbey, Vojtech Kejzlar, Witold Nazarewicz

One can improve predictability in the unknown domain by combining forecasts of imperfect complex computational models using a Bayesian statistical machine learning framework.

Uncertainty Quantification

Local Bayesian Dirichlet mixing of imperfect models

no code implementations2 Nov 2023 Vojtech Kejzlar, Léo Neufcourt, Witold Nazarewicz

To improve the predictability of complex computational models in the experimentally-unknown domains, we propose a Bayesian statistical machine learning framework utilizing the Dirichlet distribution that combines results of several imperfect models.

Uncertainty Quantification

Variational Inference with Vine Copulas: An efficient Approach for Bayesian Computer Model Calibration

1 code implementation28 Mar 2020 Vojtech Kejzlar, Tapabrata Maiti

With the advancements of computer architectures, the use of computational models proliferates to solve complex problems in many scientific applications such as nuclear physics and climate research.

Gaussian Processes Uncertainty Quantification +1

Statistical aspects of nuclear mass models

no code implementations11 Feb 2020 Vojtech Kejzlar, Léo Neufcourt, Witold Nazarewicz, Paul-Gerhard Reinhard

We study the information content of nuclear masses from the perspective of global models of nuclear binding energies.

Uncertainty Quantification

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