Grade estimation using fuzzy- set algorithms |
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Authors: | T. D. Pham |
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Affiliation: | (1) Department of Electrical Engineering, University of Sydney, Sydney, NSW, Australia |
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Abstract: | This paper presents a new approach for estimating unknown ore grades within a mining deposit in a fuzzy environment using fuzzy c- means clustering and a fuzzy inference system. Based on a collection of cluster centers obtained from fuzzy c- means, a fuzzy rule base and fuzzy search domains are established to compute grades at these cluster centers. These cluter center- grade pairs act as control information in the fuzzy space- grade system in order to infer unknown grades on the basis of fuzzy interpolation, fuzzy extrapolation, and a defuzzification process of fuzzy control. |
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Keywords: | grade estimation fuzzy sets fuzzy c-means fuzzy inference fuzzy interpolation fuzzy extrapolation |
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