Uncertainties assessment in global sensitivity indices estimation from metamodels
Uncertainties assessment in global sensitivity indices estimation from metamodels
复制标题
元模型全球敏感性指数估计的不确定性评估
DOI:
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复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
C. Prieur
中科院分区:
文献类型:
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作者:
Alexandre Janon;M. Nodet;C. Prieur
Global sensitivity analysis is often impracticable for complex and resource intensive numerical models, as it requires a large number of runs. The metamodel approach replaces the original model by an approximated code that is much faster to run. This paper deals with the information loss in the estimation of sensitivity indices due to the metamodel approximation. A method for providing a robust error assessment is presented, hence enabling significant time savings without sacrificing on precision and rigor. The methodology is illustrated on two different types of metamodels: one based on reduced basis, the other one on RKHS interpolation.
影响因子:
0.8
作者:
Karsten Urban;Anthony T. Patera
通讯作者:
Anthony T. Patera