Results 181 to 190 of about 917,096 (229)

A Fingerprint Database Construction Method Based on Universal Kriging Interpolation for Outdoor Localization

2020 IEEE/CIC International Conference on Communications in China (ICCC), 2020
In fingerprint positioning, the construction of a fingerprint database has a crucial impact on positioning. Because of the wide outdoor environment, the accurate construction of a traditional fingerprint database requires technologies such as large-scale
Qing Wu, Gang Chuai, Weidong Gao
semanticscholar   +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
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Algorithms for Improving the Designs of Building Universal Kriging Models

Statistics, Optimization & Information Computing
Kriging models (KMs) have been used popularly in the analysis of computer experiments (CEs). Fast-running alternative models for computationally demanding computer codes (CC) are created through Kriging models.
Shaymaa M. Younus, Y. Al-Taweel, Zainab Abdulateef Rasheed   +2 more
semanticscholar   +1 more source

Modified Universal Kriging-based clearance error optimization for orthogonal robot

Measurement science and technology
Aiming at the problem that the clearance error of the traditional tire laser engraving robot is too high, and thus the resulting positioning accuracy cannot meet the accuracy requirements needed for engraving at this stage, this paper takes the homemade ...
Wei Liu, Qi Zhang, Chunjie Xu, Yidong Wan   +3 more
semanticscholar   +1 more source

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.
openaire   +2 more sources

Optimal contour mapping using universal kriging

Journal of Geophysical Research, 1974
Currently available procedures for automatic contouring are unsatisfactory from both theoretical and practical viewpoints. The theory of regionalized variables allows formulation of a superior contouring algorithm. The theory of regionalized variables has been developed by G.
openaire   +1 more source

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 ...
William Caballero, Ramón Giraldo, Jorge Mateu   +2 more
openaire   +1 more source

The Second-Order Stationary Universal Kriging Model Revisited

Mathematical Geology, 1998
Universal kriging originally was developed for problems of spatial interpolation if a drift seemed to be justified to model the experimental data. But its use has been questioned in relation to the bias of the estimated underlying variogram (variogram of the residuals), and furthermore universal kriging came to be considered an old-fashioned method ...
E. Pardo-Igúzquiza, P. A. Dowd
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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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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.
openaire   +1 more source