In
statistics, originally in
geostatistics,
kriging or
Gaussian process regression is a method of
interpolation for which the interpolated values are modeled by a
Gaussian process governed by prior
covariances, as opposed to a piecewise-polynomial
spline chosen to optimize smoothness of the fitted values. Under suitable assumptions on the priors, kriging gives the
best linear unbiased prediction
of the intermediate values. Interpolating methods based on other
criteria such as smoothness need not yield the most likely intermediate
values. The method is widely used in the domain of
spatial analysis and
computer experiments. The technique is also known as
Wiener–Kolmogorov prediction, after
Norbert Wiener and
Andrey Kolmogorov.
source: wikipedia
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