{"title":"Joint simulation of coal quality attributes using a new simulated annealing-based method of diagonalisation","authors":"B. Sohrabian, Saeed Soltani-Mohammadi, A. Tercan","doi":"10.1080/17480930.2023.2165312","DOIUrl":null,"url":null,"abstract":"ABSTRACT 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.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mining Reclamation and Environment","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/17480930.2023.2165312","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
ABSTRACT 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.
期刊介绍:
The International Journal of Mining, Reclamation and Environment published research on mining and environmental technology engineering relating to metalliferous deposits, coal, oil sands, and industrial minerals.
We welcome environmental mining research papers that explore:
-Mining environmental impact assessment and permitting-
Mining and processing technologies-
Mining waste management and waste minimization practices in mining-
Mine site closure-
Mining decommissioning and reclamation-
Acid mine drainage.
The International Journal of Mining, Reclamation and Environment welcomes mining research papers that explore:
-Design of surface and underground mines (economics, geotechnical, production scheduling, ventilation)-
Mine planning and optimization-
Mining geostatics-
Mine drilling and blasting technologies-
Mining material handling systems-
Mine equipment