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Development of a supervised classification method to construct 2D mineral maps on backscattered electron images

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Date
2020
Author
Camalan, Mahmut
Çavur, Mahmut
Abstract
The Mineral Liberation Analyzer (MLA) can be used to obtain mineral maps from backscattered electron (BSE) images of particles. This paper proposes an alternative methodology that includes random forest classification, a prospective machine learning algorithm, to develop mineral maps from BSE images. The results show that the overall accuracy and kappa statistic of the proposed method are 97% and 0.94, respectively, proving that random forest classification is accurate. The accuracy indicators also suggest that the proposed method may be applied to classify minerals with similar appearances under BSE imaging. Meanwhile, random forest predicts fewer middling particles with binary and ternary composition, but the MLA predicts more middling particles only with ternary composition. These discrepancies may arise because the MLA, unlike random forest, may also measure the elemental compositions of mineral surfaces below the polished section.

Source

Turkish Journal of Electrical Engineering & Computer Sciences

Issue

2

Volume

28

Pages

1030-1043

URI

https://doi.org/10.3906/elk-1906-60
https://hdl.handle.net/20.500.12469/2891

Collections

  • Araştırma Çıktıları / Scopus [1319]
  • Araştırma Çıktıları / WOS [1335]
  • Yönetim Bilişim Sistemleri / Management Information Systems [143]

Keywords

Random forest
Mineral Liberation Analyzer
Backscattered electron images
Mineral map
Confusion matrix

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