A Locally Adaptive Bayesian Cubature Method
A Locally Adaptive Bayesian Cubature Method
复制标题
局部自适应贝叶斯体积法
DOI:
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复制
发表时间:
2019
期刊:
影响因子:
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通讯作者:
A. Teckentrup
中科院分区:
文献类型:
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作者:
Matthew A. Fisher;C. Oates;C. Powell;A. Teckentrup
Bayesian cubature (BC) is a popular inferential perspective on the cubature of expensive integrands, wherein the integrand is emulated using a stochastic process model. Several approaches have been put forward to encode sequential adaptation (i.e. dependence on previous integrand evaluations) into this framework. However, these proposals have been limited to either estimating the parameters of a stationary covariance model or focusing computational resources on regions where large values are taken by the integrand. In contrast, many classical adaptive cubature methods focus computational resources on spatial regions in which local error estimates are largest. The contributions of this work are three-fold: First, we present a theoretical result that suggests there does not exist a direct Bayesian analogue of the classical adaptive trapezoidal method. Then we put forward a novel BC method that has empirically similar behaviour to the adaptive trapezoidal method. Finally we present evidence that the novel method provides improved cubature performance, relative to standard BC, in a detailed empirical assessment.
DOI:
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发表时间:
2017-11
期刊:
J. Mach. Learn. Res.
影响因子:
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作者:
Matthew M. Dunlop;M. Girolami;A. Stuart;A. Teckentrup
通讯作者:
Matthew M. Dunlop;M. Girolami;A. Stuart;A. Teckentrup
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:
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作者:
Hennig P;Osborne MA;Girolami M
通讯作者:
Girolami M
DOI:
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发表时间:
2020
期刊:
Proceedings of the 37th International Conference on Machine Learning
影响因子:
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作者:
Jiang, Shali;Chai, Henry;González, Javier;Garnett, Roman
通讯作者:
Garnett, Roman