Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/85910
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Type: Journal article
Title: Approximate local confidence intervals under change of support
Author: Tercan, A.E.
Dowd, P.A.
Citation: Mathematical Geosciences, 1995; 27(1):149-172
Publisher: Plenum Publishers
Issue Date: 1995
ISSN: 0882-8121
1573-8868
Statement of
Responsibility: 
A. E. Tercan and P. A. Dowd
Abstract: Approximate local confidence intervals are constructed from uncertainty models in the form of the conditional distribution of the random variable Z given values of variables [Zi, i=1,...,n]. When the support of the variable Z is any support other than that of the data, the conditional distributions require a change of support correction. This paper investigates the effect of change of support on the approximate local confidence intervals constructed by cumulative indicator kriging, class indicator kriging, and probability kriging under a variety of conditions. The conditions are generated by three simulated deposits with grade distributions of successively higher degree of skewness; a point support and two different block supports are considered. The paper also compares the confidence intervals obtained from these methods using the most used measures of confidence interval effectiveness.
Keywords: uncertainty models
conditional distributions
simulation
variogram
kriging
Rights: © 1995 International Association for Mathematical Geology
DOI: 10.1007/BF02083572
Published version: http://dx.doi.org/10.1007/bf02083572
Appears in Collections:Aurora harvest 2
Civil and Environmental Engineering publications

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