Efficient Bayesian shape-restricted function estimation with constrained Gaussian process priors
Efficient Bayesian shape-restricted function estimation with constrained Gaussian process priors
复制标题
具有约束高斯过程先验的高效贝叶斯形状限制函数估计
DOI:
10.1007/s11222-020-09922-0
复制
发表时间:
2020
影响因子:
2.2
通讯作者:
Bhattacharya, Anirban
中科院分区:
文献类型:
--
作者:
Ray, Pallavi;Pati, Debdeep;Bhattacharya, Anirban
This article revisits the problem of Bayesian shape-restricted inference in the light of a recently developed approximate Gaussian process that admits an equivalent formulation of the shape constraints in terms of the basis coefficients. We propose a strategy to efficiently sample from the resulting constrained posterior by absorbing asmooth relaxationof the constraint in the likelihood and using circulant embedding techniques to sample from the unconstrainedmodified prior. We additionally pay careful attention to mitigate the computational complexity arising from updating hyperparameters within the covariance kernel of the Gaussian process. The developed algorithm is shown to be accurate and highly efficient in simulated and real data examples.
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影响因子:
3
作者:
Brezger, Andreas;Steiner, Winfried J.
通讯作者:
Steiner, Winfried J.
DOI:
10.1111/rssb.12162
发表时间:
2017-01-01
影响因子:
5.8
作者:
Botev, Z. I.
通讯作者:
Botev, Z. I.
影响因子:
2.6
作者:
H. Maatouk;X. Bay
通讯作者:
H. Maatouk;X. Bay
DOI:
10.1063/1.3647361
发表时间:
2011
期刊:
Zeitschrift für Physik A Atoms and Nuclei
影响因子:
--
作者:
J. Bernauer
通讯作者:
J. Bernauer
影响因子:
--
作者:
Nearchou IP;Soutar DA;Ueno H;Harrison DJ;Arandjelovic O;Caie PD
通讯作者:
Caie PD