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The indicators related to a regionalized variable
In many areas, one has to deal not only with quantitative variables but also very often with categorical variables. Then a common problem consists of estimating the probability for each category to prevail at any particular location. In the seventies, in order to make prediction for future selective mining, geostatistics had to deal with the problem of estimating reserves above the cut-off grades. In 1982 at the 17th APCOM symposium in Colorado, Andre Journel presented the earliest concepts of Indicator approach to estimation of spatial distribution. Using an indicator approach these probabilities can by established. Since then practitioners have used techniques based on kriging of indicators. The indicators above a threshold define the ore at this cut-off or, in a non-mining context, define the geometric set of values above the cut-off. In the last decade of the past century the interest in geometric problems has increased, in particular for simulation. For this reason, the development of techniques for simulating random function Z(x) from indicators I[Z(x)
The indicators related to a regionalized variable
In many areas, one has to deal not only with quantitative variables but also very often with categorical variables. Then a common problem consists of estimating the probability for each category to prevail at any particular location. In the seventies, in order to make prediction for future selective mining, geostatistics had to deal with the problem of estimating reserves above the cut-off grades. In 1982 at the 17th APCOM symposium in Colorado, Andre Journel presented the earliest concepts of Indicator approach to estimation of spatial distribution. Using an indicator approach these probabilities can by established. Since then practitioners have used techniques based on kriging of indicators. The indicators above a threshold define the ore at this cut-off or, in a non-mining context, define the geometric set of values above the cut-off. In the last decade of the past century the interest in geometric problems has increased, in particular for simulation. For this reason, the development of techniques for simulating random function Z(x) from indicators I[Z(x)
The indicators related to a regionalized variable
Vizi Ladislav (author)
2001
Article (Journal)
Electronic Resource
Unknown
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