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- W4283796788 abstract "Bayesian techniques for engineering problems, that rely on Gaussian process (GP) regression, are known for their ability to quantify epistemic and aleatory uncertainties and for being data efficient. The mathematical elegance of applying these methods usually comes at a high computational cost when compared to deterministic and empirical Bayesian methods. Furthermore, using these methods becomes practically infeasible in scenarios characterized by a large number of inputs and thousands of training data. The focus of this work is on enhancing Gaussian Process-based metamodeling and model calibration tasks, when the size of the training datasets is significantly large. To achieve this goal, we employ a stochastic variational inference algorithm that enables rapid statistical learning of the calibration parameters and hyperparameter tuning, while retaining the rigor of Bayesian inference. The numerical performance of the algorithm is demonstrated on multiple metamodeling and model calibration problems with thousands of training data." @default.
- W4283796788 created "2022-07-05" @default.
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- W4283796788 date "2022-07-04" @default.
- W4283796788 modified "2023-09-30" @default.
- W4283796788 title "Multi-fidelity Model Calibration in Structural Dynamics using Stochastic Variational Inference on Manifolds" @default.
- W4283796788 doi "https://doi.org/10.20944/preprints202207.0034.v1" @default.
- W4283796788 hasPublicationYear "2022" @default.
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