Semiparametric estimation of cross-covariance functions for multivariate random fields.

  title={Semiparametric estimation of cross-covariance functions for multivariate random fields.},
  author={Ghulam A. Qadir and Ying Sun},
The prevalence of spatially referenced multivariate data has impelled researchers to develop procedures for joint modeling of multiple spatial processes. This ordinarily involves modeling marginal and cross-process dependence for any arbitrary pair of locations using a multivariate spatial covariance function. However, building a flexible multivariate spatial covariance function that is nonnegative definite is challenging. Here, we propose a semiparametric approach for multivariate spatial… Expand
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