Econometrics / Statistics / Computational Complexity / Gaussian processes / Statistical Inference / Spatial modelling / Kriging / Bayesian hierarchical model / Matrix Decomposition / Markov chain monte carlo methods / Large Data Sets / Spatial Data / Scientific Data / Process Model / Spatial Dependence / Spatial Model / Spatial modelling / Kriging / Bayesian hierarchical model / Matrix Decomposition / Markov chain monte carlo methods / Large Data Sets / Spatial Data / Scientific Data / Process Model / Spatial Dependence / Spatial Model