Multiple cut-off grade optimization by genetic algorithms and comparison with grid search method and dynamic programming
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2016
Authors
Cetin, E.
Dowd, P.
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Journal of the Southern African Institute of Mining and Metallurgy, 2016; 116(7):681-688
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E. Cetin and P.A. Dowd
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Abstract
Optimization of cut-off grades is a fundamental issue for mineral deposits. Determination of optimum cut-off grades, instead of application of a static cut-off grade for the life of a mine, maximizes the net present value. The authors describe the general problem of cut-off grade optimization for multi-mineral deposits and outline the use of genetic algorithms, the grid search method, and dynamic programming for optimal cut-off grade schedules for deposits with up to three constituent minerals. The methods are compared by assessing the results of the implications involved in using them.
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© The Southern African Institute of Mining and Metallurgy, 2016. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License