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- W2793138725 abstract "Moment free sensitivity analysis computes importance of input parameters by taking into account the entire probability distribution of the output response. Due to improvement in the framework of moment free sensitivity analysis, it is widely preferred over other approaches. However, the framework often becomes computationally intensive especially in large-scale systems involving finite-element simulation. In order to minimize the computational effort, two h–p adaptive meta-models have been proposed for replacing the expensive actual response evaluations. The proposed meta-models incorporate a three-layered advantage over the conventional ones, which are, global refinement of the basis functions, enabled with compressive sampling based methods based on ℓ0- and ℓ1-norms (p-adaptivity) and integrated with an optimal sequential experimental design scheme (h-adaptivity). Both of the proposed models have been merged efficiently in the framework of moment free sensitivity analysis. Five numerical examples have been carried out for accessing the performance of the proposed models. Finally, a real-time engineering structure has been modelled and sensitivity analysis is performed. Significant reduction in computational effort has been achieved along with good level of accuracy by utilizing the proposed meta-model assisted sensitivity tools. The results have been validated with that of Monte Carlo simulation." @default.
- W2793138725 created "2018-03-29" @default.
- W2793138725 creator A5042947686 @default.
- W2793138725 creator A5070379064 @default.
- W2793138725 date "2018-04-01" @default.
- W2793138725 modified "2023-09-27" @default.
- W2793138725 title "h–p adaptive model based approximation of moment free sensitivity indices" @default.
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- W2793138725 doi "https://doi.org/10.1016/j.cma.2018.01.011" @default.
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