Results 161 to 170 of about 13,495 (192)

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
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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
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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
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Universal Kriging of RSS Databases in a Bayesian Filter

2018 21st International Conference on Information Fusion (FUSION), 2018
Received signal strength (RSS) based navigation is chosen for many indoor propagation scenarios because of the high availability and low cost of the needed infrastructure. Usually, RSS-based navigation relies on fingerprinting techniques. TRe-cently, methods for the spatial interpolation of RSS databases, including ordinary and universal Kriging have ...
Sebastian Kram, Ivana Lukcin, Christian Nickel, Jochen Seitz 0002   +3 more
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The Bayesian bridge between simple and universal kriging

Mathematical Geology, 1989
Kriging techniques are suited well for evaluation of continuous, spatial phenomena. Bayesian statistics are characterized by using prior qualified guesses on the model parameters. By merging kriging techniques and Bayesian theory, prior guesses may be used in a spatial setting. Partial knowledge of model parameters defines a continuum of models between
Omre, Henning, Halvorsen, Kjetil B.
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Universal Kriging for Loran ASF Map Generation

IEEE Transactions on Aerospace and Electronic Systems, 2019
After a series of intentional Global Positioning System (GPS) jamming attacks impacted a large area of South Korea, the Ministry of Oceans and Fisheries of South Korea considers long-range navigation (Loran) and enhanced Loran (eLoran) as a maritime backup navigation system.
Pyo-Woong Son, Joon Hyo Rhee, Jaehui Hwang, Jiwon Seo 0001   +3 more
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A universal kriging approach for spatial functional data

Stochastic Environmental Research and Risk Assessment, 2013
In a wide range of scientific fields the outputs coming from certain measurements often come in form of curves. In this paper we give a solution to the problem of spatial prediction of non-stationary functional data. We propose a new predictor by extending the classical universal kriging predictor for univariate data to the context of functional data ...
Caballero, William, Giraldo, Ramón, Mateu, Jorge   +2 more
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A sensitivity analysis for universal kriging

Mathematical Geology, 1986
Universal kriging is an interpolation method for producing contour maps from irregularly spaced sample points, taking into account the trend (or polynomial drift), which is of known form. It assumes a known covariance model to express correlation of points a short distance apart.
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The equivalence of predictions from universal kriging and intrinsic random-function kriging

Mathematical Geology, 1990
A proof is provided that the predictions obtained from kriging based on intrinsic random functions of orderk are identical to those obtained from anappropriate universal kriging model. This is a theoretical result based on known variability measures. It does not imply that people performing traditional universal kriging will get the same predictions as
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Universal kriging of hail impact energy in Greece

Physics and Chemistry of the Earth, Parts A/B/C, 2002
Abstract In this study the spatial variability of hail impact energy was examined using universal kriging. The hailstorm of June 26th, 1988 in northern Greece was used for the development of methodology and the hailstorm of June 19th, 1988 was used for the analysis and validation. The emphasis was placed on the computation of empirical semivariogram,
Nicolas R Dalezios, Athanasios Loukas, Dimitrios Bampzelis   +2 more
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