Joint simulation of coal quality attributes using a new simulated annealing-based method of diagonalisation

Sohrabian B., Soltani-Mohammadi S., TERCAN A. E.

International Journal of Mining, Reclamation and Environment, cilt.37, sa.3, ss.216-242, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 3
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1080/17480930.2023.2165312
  • Dergi Adı: International Journal of Mining, Reclamation and Environment
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Compendex, Computer & Applied Sciences, Environment Index, Geobase, Greenfile, INSPEC, Pollution Abstracts
  • Sayfa Sayıları: ss.216-242
  • Anahtar Kelimeler: Cross-variogram, joint simulation, simulated annealing, simultaneous diagonalisation, minimum, maximum autocorrelation factor
  • Hacettepe Üniversitesi Adresli: Evet

Özet

© 2023 Informa UK Limited, trading as Taylor & Francis Group.A new approach is proposed for simultaneous diagonalisation of variance-covariance matrices to generate spatially orthogonal factors using based on simulated annealing method. Simultaneous diagonalisation was applied to three quality attributes of a coal seam. The proposed method was successful in diagonalisation due to creating factors with cross-variograms that lie in tighter intervals compared with minimum/maximum autocorrelation factors (MAF). Simulation through the proposed approach showed variable dependent results in terms of reproducing mean values, variances, correlation coefficients, and auto-variograms of variables. However, the new approach showed advantage over MAF in reproducing the cross-variograms of variables, especially in the downhole direction.