Journal
RELIABILITY ENGINEERING & SYSTEM SAFETY
Volume 237, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2023.109392
Keywords
Inverse problems; Machine learning; Gaussian process; Blackbox variational inference; Geometric complexity; Suspended nonstructural systems
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This paper presents a novel framework for quantifying the uncertainty in the inverse problems of suspended nonstructural systems. The framework combines machine learning and model-driven stochastic Gaussian process model calibration to account for geometric complexity through Bayesian inference. The proposed framework is validated using a large-scale shaking table test and simulated data, showing computational soundness, scalability, and optimal generalizability.
This paper presents a novel framework for the uncertainty quantification of inverse problems often encountered in suspended nonstructural systems. This framework adopts machine learning- and model-driven stochastic Gaussian process model calibration to quantify the uncertainty via a new blackbox variational inference that accounts for geometric complexity through Bayesian inference. The soundness of the proposed framework is validated by examining one of the largest full-scale shaking table tests of suspended nonstructural systems and accompanying simulated (numerical) data. Our findings indicate that the proposed framework is computationally sound and scalable and yields optimal generalizability.
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