Compartir
Título
Grade control in a quartz deposit using universal fuzzy kriging
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
DYNA: revista de la Facultad de Minas. Universidad Nacional de Colombia. Sede Medellín
Número de la revista
178
Datos de la obra
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)
Editor
Universidad Nacional de Colombia
Fecha
2013
ISSN
0012-7353
Abstract
[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 data
by linearly combining functions that depend on the coordinates for each point, which are fuzzy numbers. The spatial dependence between
the data is determined by means of non-fuzzy covariograms. The proposed method provides fuzzy numbers and non-fuzzy variances at
unsampled locations. Finally, the estimated fuzzy numbers are translated back into quartz qualities and graphically represented. From the
grade model obtained by using fuzzy kriging it has been possible to perform selective mining at the deposit depending on market demand
of the four products exploited
Materia
Palabras clave
URI
Collections
- Untitled [5104]
Files in this item
Tamaño:
1.051
xmlui.dri2xhtml.METS-1.0.size-megabytes
Formato:
Adobe PDF