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Neural Computing and Applications

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01.09.2012 | Original Article

A hybrid intelligent optimization method for multiple metal grades optimization

verfasst von: Shiwei Yu, Kejun Zhu, Yong He

Erschienen in: Neural Computing and Applications | Ausgabe 6/2012

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Abstract

One of the most important aspects of metal mine design is to determine the optimum cut-off grades and milling grades which relate to the economic efficiency of enterprises and the service life of mines. This paper proposes a hybrid intelligent framework which is based on stochastic simulations and regression, artificial neural network, and genetic algorithms is employed for grade optimization. Firstly, stochastic simulation and regression are used to simulate the uncertainty relations between cut-off grade and the loss rate. Secondly, BP and RBF network are applied to establish two complex relationships from the four variables of cut-off grade, milling grade, geological grade, and recoverable reserves to lost rate and total cost, respectively, in which, BP is used for the one of lost rate, and RBF is for the other. Meanwhile, the real-coding genetic algorithm is performed to search the optimal grades (cut-off grade and milling grade) and the weights of neural networks globally. Finally, the model has been applied to optimize grades of Daye Iron Mine. The results show there are 6. 6978 milling Yuan added compare to unoptimized grades.

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Titel: A hybrid intelligent optimization method for multiple metal grades optimization
verfasst von: Shiwei Yu
Kejun Zhu
Yong He
Publikationsdatum: 01.09.2012
Verlag: Springer-Verlag
Erschienen in: Neural Computing and Applications / Ausgabe 6/2012
Print ISSN: 0941-0643
Elektronische ISSN: 1433-3058
DOI: https://doi.org/10.1007/s00521-011-0593-7

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