Estimating and modeling space-time correlation structures

被引:116
作者
De Cesare, L
Myers, DE
Posa, D
机构
[1] Univ Arizona, Dept Math, Tucson, AZ 85721 USA
[2] Univ Bari, Fac Econ 2, I-70121 Bari, Italy
[3] CNR, Ist Ric Matemat Applicata, I-70126 Bari, Italy
[4] Univ Lecce, Fac Econ, I-73100 Lecce, Italy
关键词
space-time correlation; geostatistics;
D O I
10.1016/S0167-7152(00)00131-0
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
In this paper, a class of product-sum covariance models has been introduced for estimating and modeling space-time correlation structures. It is shown how the coefficients of this class of models are related to the global sill. and "partial" spatial and temporal sills; moreover, some constraints on these sills have been given in order to assure positive definiteness of the product-sum covariance model. A brief comparative study with some other classes of spatial-temporal covariance models has been pointed out. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:9 / 14
页数:6
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