Spatial Deformation and Dimension Expansion Gaussian Processes

Methods for fitting nonstationary Gaussian process models by spatial deformation, as introduced by Sampson and Guttorp (1992) , and by dimension expansion, as introduced by Bornn et al. (2012) . Low-rank thin-plate regression splines, as developed in Wood, S.N. (2003) , are used to either transform co-ordinates or create new latent dimensions.