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• W2951672219 endingPage "516" @default.
• W2951672219 startingPage "498" @default.
• W2951672219 abstract "Summary Surrogate modeling techniques have been increasingly developed for optimization and uncertainty quantification problems in many engineering fields. The development of surrogates requires modeling high‐dimensional and nonsmooth functions with limited information. To this end, the hybrid surrogate modeling method, where different surrogate models are combined, offers an effective solution. In this paper, a new hybrid modeling technique is proposed by combining polynomial chaos expansion and kernel function in a sparse Bayesian learning framework. The proposed hybrid model possesses both the global characteristic advantage of polynomial chaos expansion and the local characteristic advantage of the Gaussian kernel. The parameterized priors are utilized to encourage the sparsity of the model. Moreover, an optimization algorithm aiming at maximizing Bayesian evidence is proposed for parameter optimization. To assess the performance of the proposed method, a detailed comparison is made with the well‐established PC‐Kriging technique. The results show that the proposed method is superior in terms of accuracy and robustness." @default.
• W2951672219 created "2019-06-27" @default.
• W2951672219 creator A5023636157 @default.
• W2951672219 creator A5053096325 @default.
• W2951672219 date "2019-07-14" @default.
• W2951672219 modified "2023-10-16" @default.
• W2951672219 title "A new surrogate modeling method combining polynomial chaos expansion and Gaussian kernel in a sparse Bayesian learning framework" @default.
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• W2951672219 doi "https://doi.org/10.1002/nme.6145" @default.
• W2951672219 hasPublicationYear "2019" @default.
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