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Unbiased Estimator

   Also found in: Wikipedia 0.03 sec.
Unbiased Estimator
A mathematical estimation of the value of some unknown that does not differ from the unknown's true value.


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An unbiased estimator of V can be defined from a set of equidistant observations of f by applying: V = T [summation] over k [member of] z f(UT + kT); T [member of] [R.
In that criterion, we minimize the average difference between a reconstructed function and an individual target function over a noise ensemble subject to the condition that the reconstructed function is an unbiased estimator of the best approximation obtainable from noiseless sampled values.
This is consistent with the result (Diggle 1977, Byth 1982) that for complete spatially random populations, PNN does provide a largely unbiased estimator.
 
 
 
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