نتایج جستجو برای: kriging method

تعداد نتایج: 1632826  

Journal: :International Journal of Health Geographics 2004
Olaf Berke

BACKGROUND: There is considerable interest in the literature on disease mapping to interpolate estimates of disease occurrence or risk of disease from a regional database onto a continuous surface. In addition to many interpolation techniques available the geostatistical method of kriging has been used but also criticised. RESULTS: To circumvent these critics one may use kriging along with alre...

Journal: :CoRR 2013
Firas A. Jassim

Image inpainting is the art of predicting damaged regions of an image. The manual way of image inpainting is a time consuming. Therefore, there must be an automatic digital method for image inpainting that recovers the image from the damaged regions. In this paper, a novel statistical image inpainting algorithm based on Kriging interpolation technique was proposed. Kriging technique automatical...

Journal: :desert 0
a. afzali desert management dept., international desert research center (idrc), university of tehran h. keshtkar faculty of natural resources, university of tehran, karaj, iran s. pakzad desert management dept., international desert research center (idrc), university of tehran n. moazami desert management dept., international desert research center (idrc), university of tehran e. azizabadi farahani desert management dept., international desert research center (idrc), university of tehran a. golpaygani desert management dept., international desert research center (idrc), university of tehran e. khosrojerdi

drought monitoring is a fundamental component of drought risk management. it is normally performed using various drought indices that are effectively continuous functions of rainfall and other hydrometeorological variables. in many instances, drought indices are used for monitoring purposes. geostatistical methods allow the interpolation of spatially referenced data and the prediction of values...

2002
Alexandra Kravchenko Renduo Zhang

Precipitation is a function of many topographical land features as well as geographical locations. Spatial correlations between precipitation and topographical and geographical features can be used to improve estimation of precipitation distributions. In this study, kriging with external drift of topographical information was utilized for determining precipitation spatial distributions in Wyomi...

2000
Hyoung-Seog Chung Juan J. Alonso

In this work, the use of both a second-order response surface method (RSM) and the Kriging method as approximation models for design optimization are investigated and compared. After validating the accuracy of each method with simple one-and two-dimensional analytic functions, they are applied to two Supersonic Business Jet (SBJ) drag minimization design cases in order to obtain a clear compari...

Journal: :Communications for Statistical Applications and Methods 2003

2009
Rodolphe Le Riche Victor Picheny David Ginsbourger André Meyer

This article presents an approach to the optimization of helical involute gears for geometrical feasibility, contact ratio, teeth sliding velocity, stresses and static transmission error (STE). The teeth shape is subject to random perturbations due to wear (a randomized Archard’s wear). The consequences of shape inaccuracies are statistically expressed as a 90% percentile of the STE variation, ...

Journal: :CoRR 2013
Firas Ajil Jassim

Image denoising is a critical issue in the field of digital image processing. This paper proposes a novel Salt & Pepper noise suppression by developing a Kriging Interpolation Filter (KIF) for image denoising. Gray-level images degraded with Salt & Pepper noise have been considered. A sequential search for noise detection was made using kk window size to determine nonnoisy pixels only. The non...

1998
EULOGIO PARDO-IGÚZQUIZA E. PARDO-IGÚZQUIZA

The results of estimating the areal average climatological rainfall mean in the Guadalhorce river basin in southern Spain are presented in this paper. The classical Thiessen method and three different geostatistical approaches (ordinary kriging, cokriging and kriging with an external drift) have been used as estimators and their results are compared and discussed. The first two methods use only...

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