Semiparametric method and theory for continuously indexed spatio-temporal processes
Semiparametric method and theory for continuously indexed spatio-temporal processes
复制标题
连续索引时空过程的半参数方法和理论
DOI:
10.1016/j.jmva.2021.104735
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发表时间:
2021
影响因子:
1.6
通讯作者:
Wang, Haonan
中科院分区:
文献类型:
--
作者:
Liu, Jialuo;Chu, Tingjin;Zhu, Jun;Wang, Haonan
Spatio-temporal processes with a continuous index in space and time are useful for modeling spatio-temporal data in many scientific disciplines such as environmental and health sciences. However, approaches that enable simultaneous estimation of the mean and covariance functions for such spatio-temporal processes are limited. Here, we propose a flexible spatio-temporal model with partially linear regression in the mean function and local stationarity in the covariance function. We develop a profile likelihood method for estimation and an effective bandwidth selection in the presence of spatio-temporally correlated errors. Specifically, we employ a family of bimodal kernels to alleviate bias, which may be of independent interest for semiparametric spatial statistics. The theoretical properties of our profile likelihood estimation, including consistency and asymptotic normality, are established. A simulation study is conducted and suggests sound empirical properties, while a health hazard data example further illustrates the methodology.
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影响因子:
0.9
作者:
S. Bandyopadhyay;C. Jentsch;S. Subba Rao
通讯作者:
S. Subba Rao
DOI:
10.2139/ssrn.2144996
发表时间:
2012-09
期刊:
Econometrics: Econometric & Statistical Methods - General eJournal
影响因子:
--
作者:
M. Vogt;O. Linton
通讯作者:
M. Vogt;O. Linton
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:
3.7
作者:
M. Stein
通讯作者:
M. Stein
影响因子:
2
作者:
Porcu, Emilio;Alegria, Alfredo;Furrer, Reinhard
通讯作者:
Furrer, Reinhard