Amri, Nur Ali (2013) Impak Fitting Model Semivariogram pada Perhitungan Range. In: Prosiding eminar Nasional Kebumian – VIII, Yogyakarta, 5 September 2013, Fakultas Teknologi Mineral UPN "Veteran" Yogyakarta.
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Abstract
Abstract
Semivariogram is a visualization of the geostatistical variance parameters, while fitting
semivariogram is one of important factor in determining the effect of range or influence
distance between sample points, which is in the mining industry useful for the estimation
of mineral reserves. Based on calculation of gold grades distributions, obtained that the
robust semivariogram method is better than the classical method. Range based on fitting
(OLS and WLS) robust method also produces longer or better of distances influence.
Nonetheless, implicitly, the robust semivariogram OLS fitting model is still better than
WLS model. This applies to both the exponential and spherical models.
Abstrak
Semivariogram merupakan visualisasi parameter variance pada geostatistik, sedangkan
fitting semivariogram adalah salah satu factor penting dalam penentuan range atau jarak
pengaruh antar titik-titik sampel, yang di dalam industry pertambangan berguna dalam
estimasi cadangan bahan galian. Berdasarkan hasil perhitungan terhadap sebaran kadar
emas ini diperoleh informasi bahwa semivariogram dengan metode robust lebih baik
dibandingkan metode classical. Range berdasarkan fitting (OLS dan WLS) metode robust
juga menghasilkan jarak pengaruh yang lebih panjang atau lebih baik. Meskipun
demikian, secara implicit, metode robust fitting semivariogram model OLS lebih baik
dibandingkan model WLS. Kejadian ini berlaku baik pada model exponential maupun
spherical
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjek: | Q Science > Q Science (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr. ST. MT Nur Ali Amri |
| Date Deposited: | 27 Nov 2021 16:44 |
| Last Modified: | 27 Nov 2021 16:44 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/27158 |
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