There is no single best resource for GPR theory -- it all depends on a person's background and extent of understanding of topics including kernel functions, covariance matrices, multivariate Gaussian ...

Researchers explored the decision-making process of Gaussian process (GP) models, focusing on loss landscapes and ...

Understanding Gaussian Process Regression I suspect that one of the reasons why Gaussian process regression is not used as often as other regression techniques is that GPR is very intimidating from a ...