Measure of Uncertainty in Regional Grade Variability

  • Bulent Tutmez
  • Uzay Kaymak
Part of the Advances in Soft Computing book series (AINSC, volume 41)


Because the geological events are neither homogeneous nor isotropic, the geological investigations are characterized by particularly high uncertainties. This paper presents a hybrid methodology for measuring of uncertainty in regional grade variability. In order to evaluate the fuzziness in grade values at ore deposit, point cumulative semimadogram (PCSM) measure and a metric distance have been employed. By using the experimental PCSMs and their linear models, measures of fuzziness have been carried out for each location. Finally, an uncertainty map, which defines the regional variation of the uncertainty in different categories, has been composed.


Uncertainty fuzziness grade regional variability semimadogram 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Bulent Tutmez
    • 1
  • Uzay Kaymak
    • 2
  1. 1.Inonu University, School of Engineering, 44280 MalatyaTurkey
  2. 2.Erasmus University Rotterdam, Econometric Institute, P.O. Box 1738, 3000DR, RotterdamThe Netherlands

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