An additive approximate Gaussian process model for large spatio‐temporal data
An additive approximate Gaussian process model for large spatio‐temporal data
复制标题
大时空数据的加性近似高斯过程模型
DOI:
10.1002/env.2569
复制
发表时间:
2017
期刊:
影响因子:
1.7
通讯作者:
E. Kang
中科院分区:
文献类型:
--
作者:
P. Ma;B. Konomi;E. Kang
Motivated by a large ground‐level ozone data set, we propose a new computationally efficient additive approximate Gaussian process. The proposed method incorporates a computational‐complexity‐reduction method and a separable covariance function, which can flexibly capture various spatio‐temporal dependence structures. The first component is able to capture nonseparable spatio‐temporal variability, whereas the second component captures the separable variation. Based on a hierarchical formulation of the model, we are able to utilize the computational advantages of both components and perform efficient Bayesian inference. To demonstrate the inferential and computational benefits of the proposed method, we carry out extensive simulation studies assuming various scenarios of an underlying spatio‐temporal covariance structure. The proposed method is also applied to analyze large spatio‐temporal measurements of ground‐level ozone in the Eastern United States.
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DOI:
10.1214/16-aoas931
发表时间:
2016-09
期刊:
The annals of applied statistics
影响因子:
--
作者:
Datta A;Banerjee S;Finley AO;Hamm NAS;Schaap M
通讯作者:
Schaap M
影响因子:
2.2
作者:
Gramacy, Robert B.;Lee, Herbert K. H.
通讯作者:
Lee, Herbert K. H.
DOI:
10.1080/10618600.2018.1537924
发表时间:
2019-03-21
影响因子:
2.4
作者:
Finley, Andrew O.;Datta, Abhirup;Banerjee, Sudipto
通讯作者:
Banerjee, Sudipto
影响因子:
5.7
作者:
Katzfuss, Matthias;Guinness, Joseph
通讯作者:
Guinness, Joseph