Multilevel Bayesian Quadrature
Multilevel Bayesian Quadrature
复制标题
多级贝叶斯求积
DOI:
--
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
F. Briol
中科院分区:
文献类型:
--
作者:
Kaiyu Li;Daniel Giles;T. Karvonen;S. Guillas;F. Briol
Multilevel Monte Carlo is a key tool for approximating integrals involving expensive scientific models. The idea is to use approximations of the integrand to construct an estimator with improved accuracy over classical Monte Carlo. We propose to further enhance multilevel Monte Carlo through Bayesian surrogate models of the integrand, focusing on Gaussian process models and the associated Bayesian quadrature estimators. We show, using both theory and numerical experiments, that our approach can lead to significant improvements in accuracy when the integrand is expensive and smooth, and when the dimensionality is small or moderate. We conclude the paper with a case study illustrating the potential impact of our method in landslide-generated tsunami modelling, where the cost of each integrand evaluation is typically too large for operational settings.
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影响因子:
4.4
作者:
Clare M
通讯作者:
Clare M
影响因子:
5.1
作者:
I. Reguly;Daniel Giles;Devaraj Gopinathan;L. Quivy;Joakim Beck;M. Giles;S. Guillas;F. Dias
通讯作者:
I. Reguly;Daniel Giles;Devaraj Gopinathan;L. Quivy;Joakim Beck;M. Giles;S. Guillas;F. Dias
DOI:
10.1137/19m1304222
发表时间:
2020-01
期刊:
SIAM/ASA J. Uncertain. Quantification
影响因子:
--
作者:
Rui Tuo;Yan Wang;C. F. Wu
通讯作者:
Rui Tuo;Yan Wang;C. F. Wu
影响因子:
3
作者:
Motonobu Kanagawa;Bharath K. Sriperumbudur;K. Fukumizu
通讯作者:
Motonobu Kanagawa;Bharath K. Sriperumbudur;K. Fukumizu
DOI:
10.1098/rspa.2015.0142
发表时间:
2015-07-08
期刊:
Proceedings. Mathematical, physical, and engineering sciences
影响因子:
--
作者:
Hennig P;Osborne MA;Girolami M
通讯作者:
Girolami M