TY - JOUR T1 - Flexible and Efficient Estimating Equations for Variogram Estimation JF - Computational Statistics and Data Analysis Y1 - 2018 A1 - Sun,Ying A1 - Chang,Xiaohui A1 - Guan,Yongtao KW - Business Analytics AB - Variogram estimation plays a vastly important role in spatial modeling. Different methods
for variogram estimation can be largely classified into least squares methods and likelihood
based methods. A general framework to estimate the variogram through a set of estimating
equations is proposed. This approach serves as an alternative approach to likelihood based
methods and includes commonly used least squares approaches as its special cases. The
proposed method is highly efficient as a low dimensional representation of the weight
matrix is employed. The statistical efficiency of various estimators is explored and the lag
effect is examined. An application to a hydrology data set is also presented. VL - 122 U2 - a U4 - 141504911360 ID - 141504911360 ER -