2 papers
stat.ME2026
Irregularly and incompletely sampled random fields in the Earth sciences: Analysis and synthesis of parameterized covariance models
Olivia L. Walbert, Frederik J. Simons, Arthur P. Guillaumin +1
We study how sampling geometry contributes to uncertainty in modeling spatial geophysical observations as sampled random fields characterized by stationary, isotropic, parametric c…
stat.ME2026
Maximum-likelihood estimation of the Matérn covariance structure of isotropic spatial random fields on finite, sampled grids
Frederik J. Simons, Olivia L. Walbert, Arthur P. Guillaumin +3
We present a statistically and computationally efficient spectral-domain maximum-likelihood procedure to solve for the structure of Gaussian spatial random fields within the Matern…