Weighted jackknife ordinary kriging - problem solution of the precision in mineral resources estimation

[摘要] The aim of introducing the weighted jackknife ordinary kriging (WJOK), as a robust estimator, is to solve the outliers and the problems of uncertainty associated with grade estimates of mineral resources. Jackknifing the ordinary kriging (OK) estimates and weighting the pseudo-value yield more reliable estimates than ordinary kriging and jackknife ordinary kriging (JOK) estimates. The new estimator is more conservative than the standard jackknife technique, which is shown by a little standard deviation value. It obtains a simple way to calculate the confidence interval associated with the estimation.

[发布机构] Master of Mining Engineering UPNVY, Jalan SWK 104 Condongcatur, Yogyakarta, Indonesia^1

[效力级别] 矿业工程

[关键词] Confidence interval;Ordinary kriging;Problem solutions;Reliable estimates;Robust estimators;Standard deviation