[PDF][PDF] Analysis of stochastic gradient methods for PDE-constrained optimal control problems with uncertain parameters

M Martin, S Krumscheid, F Nobile - Preprint, 2018 - core.ac.uk
We consider the numerical approximation of a risk-averse optimal control problem for an
elliptic partial differential equation (PDE) with random coefficients. Specifically, the control
function is a deterministic, distributed forcing term that minimizes the expected mean
squared distance between the state (ie solution to the PDE) and a target function, subject to
a regularization for well posedness. For the numerical treatment of this riskaverse optimal
control problem, we consider a Finite Element discretization of the underlying PDEs, a …

Complexity analysis of stochastic gradient methods for PDE-constrained optimal control problems with uncertain parameters

M Martin, S Krumscheid, F Nobile - ESAIM: Mathematical Modelling …, 2021 - esaim-m2an.org
We consider the numerical approximation of an optimal control problem for an elliptic Partial
Differential Equation (PDE) with random coefficients. Specifically, the control function is a
deterministic, distributed forcing term that minimizes the expected squared L 2 misfit
between the state (ie solution to the PDE) and a target function, subject to a regularization
for well posedness. For the numerical treatment of this risk-averse Optimal Control Problem
(OCP) we consider a Finite Element discretization of the underlying PDE, a Monte Carlo …
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