Probabilistic error estimation for non-intrusive reduced models learned from data of systems governed by linear parabolic partial differential equations
Probabilistic error estimation for non-intrusive reduced models learned from data of systems governed by linear parabolic partial differential equations
复制标题
从线性抛物型偏微分方程控制的系统数据中学习的非侵入式简化模型的概率误差估计
DOI:
10.1051/m2an/2021010
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Peherstorfer, Benjamin
中科院分区:
文献类型:
--
作者:
Uy, Wayne Isaac;Peherstorfer, Benjamin
This work derives a residual-baseda posteriorierror estimator for reduced models learned with non-intrusive model reduction from data of high-dimensional systems governed by linear parabolic partial differential equations with control inputs. It is shown that quantities that are necessary for the error estimator can be either obtained exactly as the solutions of least-squares problems in a non-intrusive way from data such as initial conditions, control inputs, and high-dimensional solution trajectories or bounded in a probabilistic sense. The computational procedure follows an offline/online decomposition. In the offline (training) phase, the high-dimensional system is judiciously solved in a black-box fashion to generate data and to set up the error estimator. In the online phase, the estimator is used to bound the error of the reduced-model predictions for new initial conditions and new control inputs without recourse to the high-dimensional system. Numerical results demonstrate the workflow of the proposed approach from data to reduced models to certified predictions.
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DOI:
10.1137/18m120364x
发表时间:
2018
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1051/cocv/2017011
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2018
期刊:
ESAIM: Control, Optimisation and Calculus of Variations
影响因子:
--
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通讯作者:
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DOI:
10.1051/m2an/2012029
发表时间:
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期刊:
Mathematical Modelling and Numerical Analysis
影响因子:
--
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