Search Results for author: Dimitrios Tsapetis

Found 2 papers, 0 papers with code

On Active Learning for Gaussian Process-based Global Sensitivity Analysis

no code implementations27 Aug 2023 Mohit Chauhan, Mariel Ojeda-Tuz, Ryan Catarelli, Kurtis Gurley, Dimitrios Tsapetis, Michael D. Shields

We propose a novel strategy for active learning that focuses on resolving the main effects of the Gaussian process (associated with the numerator of the Sobol index) and compare this with existing strategies based on convergence in the total variance (the denominator of the Sobol index).

Active Learning Experimental Design

Learning thermodynamically constrained equations of state with uncertainty

no code implementations29 Jun 2023 Himanshu Sharma, Jim A. Gaffney, Dimitrios Tsapetis, Michael D. Shields

Since there are inherent uncertainties in the calibration data (parametric uncertainty) and the assumed functional EOS form (model uncertainty), it is essential to perform uncertainty quantification (UQ) to improve confidence in the EOS predictions.

GPR Uncertainty Quantification

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