Inverse Problems in a Bayesian Setting
Inverse Problems in a Bayesian Setting
复制标题
贝叶斯环境中的反问题
DOI:
10.1007/978-3-319-27996-1_10
复制
发表时间:
2016
期刊:
影响因子:
--
通讯作者:
O. Pajonk
中科院分区:
文献类型:
--
作者:
H. G. Matthies;E. Zander;B. Rosić;A. Litvinenko;O. Pajonk
In a Bayesian setting, inverse problems and uncertainty quantification (UQ)—the propagation of uncertainty through a computational (forward) model—are strongly connected. In the form of conditional expectation the Bayesian update becomes computationally attractive. We give a detailed account of this approach via conditional approximation, various approximations, and the construction of filters. Together with a functional or spectral approach for the forward UQ there is no need for time-consuming and slowly convergent Monte Carlo sampling. The developed sampling-free non-linear Bayesian update in form of a filter is derived from the variational problem associated with conditional expectation. This formulation in general calls for further discretisation to make the computation possible, and we choose a polynomial approximation. After giving details on the actual computation in the framework of functional or spectral approximations, we demonstrate the workings of the algorithm on a number of examples of increasing complexity. At last, we compare the linear and nonlinear Bayesian update in form of a filter on some examples.
登录
查看更多内容
DOI:
10.1016/j.cageo.2012.05.017
发表时间:
2013-06
期刊:
Comput. Geosci.
影响因子:
--
作者:
O. Pajonk;B. Rosic;H. Matthies
通讯作者:
O. Pajonk;B. Rosic;H. Matthies
DOI:
--
发表时间:
1968
期刊:
影响因子:
--
作者:
I. Segal;R. Kunze
通讯作者:
R. Kunze
DOI:
10.1016/j.jcp.2012.04.044
发表时间:
2012-07
期刊:
J. Comput. Phys.
影响因子:
--
作者:
B. Rosic;A. Litvinenko;O. Pajonk;H. Matthies
通讯作者:
B. Rosic;A. Litvinenko;O. Pajonk;H. Matthies
DOI:
10.1137/15m1032478
发表时间:
2015
期刊:
SIAM/ASA J. Uncertain. Quantification
影响因子:
--
作者:
M. Parno;T. El;Y. Marzouk
通讯作者:
Y. Marzouk
DOI:
10.1016/j.engstruct.2012.12.029
发表时间:
2012-01
期刊:
ArXiv
影响因子:
--
作者:
B. Rosic;A. Kucerová;J. Sýkora;O. Pajonk;A. Litvinenko;H. Matthies
通讯作者:
B. Rosic;A. Kucerová;J. Sýkora;O. Pajonk;A. Litvinenko;H. Matthies