RT info:eu-repo/semantics/article
T1 Grade control in a quartz deposit using universal fuzzy kriging
A1 Saavedra González, Angeles
A1 Ordóñez Galán, Celestino
A1 Taboada Castro, Javier
A1 Giráldez Pérez, Eduardo
A1 Sierra Fernández, Carlos María
A2 Ingeniería CartograficaGeodesica y Fotogrametria
K1 Cartografía
K1 Ingenierías
K1 Universal Kriging
K1 Fuzzy Number
K1 Quartz Quality
K1 3d Model
K1 Selective Mining
AB [EN] We adapt the universal kriging method of prediction to contexts with uncertainty and imprecise data. Using fuzzy set theory,we develop a fuzzy universal kriging that we use to estimate quality classes for a quartz deposit. The method models the trend in the databy linearly combining functions that depend on the coordinates for each point, which are fuzzy numbers. The spatial dependence betweenthe data is determined by means of non-fuzzy covariograms. The proposed method provides fuzzy numbers and non-fuzzy variances atunsampled locations. Finally, the estimated fuzzy numbers are translated back into quartz qualities and graphically represented. From thegrade model obtained by using fuzzy kriging it has been possible to perform selective mining at the deposit depending on market demandof the four products exploited
PB Universidad Nacional de Colombia
SN 0012-7353
LK https://hdl.handle.net/10612/19234
UL https://hdl.handle.net/10612/19234
NO Saavedra González, A.; Ordóñez Galán, C.; Taboada Castro, J.; Giráldez Pérez, E.; Sierra Fernández, C. M. (2013). Grade control in a quartz deposit using universal fuzzy kriging. DYNA: revista de la Facultad de Minas. Universidad Nacional de Colombia. Sede Medellín, 80, 61-69(178)
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 21-may-2024