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arXiv 1711.08030stat.CO
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时变过程的基于方差的敏感性分析

Variance-based sensitivity analysis for time-dependent processes

Alen Alexanderian, Pierre A. Gremaud, Ralph C. Smith

摘要:

时变过程的全局敏感性分析需要历史感知方法。为此,我们开发了一种基于方差的方法,该方法利用所研究问题的相关结构,并采用代理模型来加速计算。通过先验估计,分析了将不重要的不确定参数固定到其标称值所产生的误差。我们说明我们的方法上的谐振子的例子和非线性动态霍乱模型。

英文摘要:

The global sensitivity analysis of time-dependent processes requires history-aware approaches. We develop for that purpose a variance-based method that leverages the correlation structure of the problems under study and employs surrogate models to accelerate the computations. The errors resulting from fixing unimportant uncertain parameters to their nominal values are analyzed through a priori estimates. We illustrate our approach on a harmonic oscillator example and on a nonlinear dynamic cholera model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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