Results 171 to 180 of about 2,567 (206)

Universal kriging with training images

Spatial Statistics, 2015
Abstract In the past decade, the training image (TI) has received considerable attention as a source for modeling spatial continuity in geostatistics. In this paper, the use of TIs in the context of kriging is investigated, specifically universal kriging (UK).
Lewis Li, Thomas Romary, Jef Caers
exaly   +3 more sources

UVKRIG: A FORTRAN-77 program for universal kriging

Computers and Geosciences, 1990
Abstract The application of universal kriging to weakly stationary data is difficult for three reasons: (1) it is difficult to estimate the variogram for the weakly stationary data; (2) the order of drift for weakly stationary random function must be modeled; and (3) equation solution differs for universal kriging from that for simple or ordinary ...
James R Carr
exaly   +2 more sources

Multi-event universal kriging (MEUK)

Advances in Water Resources, 2016
Multi-event universal kriging (MEUK) is a method of interpolation that creates a series of maps, each corresponding to a specific sampling “event”, which exhibit spatial relationships that persist over time. MEUK is computed using minimum-variance unbiased linear prediction from data obtained via a sequence of events.
Matthew J Tonkin
exaly   +2 more sources

Assessment of uncertainty in computer experiments from Universal to Bayesian Kriging

Applied Stochastic Models in Business and Industry, 2009
AbstractKriging was first introduced in the field of geostatistics. Nowadays, it is widely used to model computer experiments. Since the results of deterministic computer experiments have no experimental variability, Kriging is appropriate in that it interpolates observations at data points.
Helbert, C., Dupuy, D., Carraro, L.
exaly   +2 more sources

Problems with universal kriging

Journal of the International Association for Mathematical Geology, 1984
Armstrong M
exaly   +2 more sources

Integration of field sampling and LiDAR data in forest inventories: comparison of area-based approach and (lognormal) universal kriging [PDF]

Annals of Forest Science, 2021
14 Pág. Annals of Forest ScienceKey message: We compared (lognormal) universal kriging with the area-based approach for estimation of forest inventory variables using LiDAR data as auxiliary information and showed that universal kriging could be an ...
Cristina Gomez, Antonio Vazquez De La Cueva, Fernando Montes   +2 more
exaly   +2 more sources

Universal Kriging and Cokriging as a Regression Procedure

Biometrics, 1991
Prediction of a property on the basis of a set of point measurements in a region is required if a map of this property for the region is to be made. Of the spatial interpolation and prediction techniques, kriging is optimal among all linear procedures, as it is unbiased and has minimal variance of the prediction error. In cokriging, which has this same
Stein, A., Corsten, L.C.A.
openaire   +3 more sources

Disjunctive kriging, universal kriging, or no kriging: Small sample results with simulated fields

Mathematical Geology, 1986
This paper provides a comparison between linear (universal) and nonlinear (disjunctive) kriging estimators when they are computed from small samples chosen randomly on simulated stationary and nonstationary fields. Point estimation results are reported.
Carlos E. Puente, Rafael L. Bras
openaire   +1 more source

Regularized kriging as a generalization of simple, universal, and bayesian kriging

Stochastic Environmental Research and Risk Assessment, 2005
In this article the properties of regularized kriging (RK) are studied. RK is obtained as a result of relaxing the universal kriging (UK) non-bias condition by using the support vectors methodology. More specifically, we demonstrate how RK is a continuum of solutions in function of the regularizing parameter, which includes as particular and extreme ...
J. M. Matías, W. González-Manteiga
openaire   +1 more source

Automatic Kriging And Contouring In The Presence Of Trends (Universal Kriging Made Simple)

Journal of Canadian Petroleum Technology, 1978
Abstract The main purpose of this paper is to present a new automatic interpolation and contouring technique which automatically recognizes the spatial structure of the dam to be contoured even when, trends are present and data are not regularly spaced.
Michael W.D. Davis, Michel David
openaire   +1 more source