Publication Type
Conference Proceeding Article
Version
acceptedVersion
Publication Date
9-2023
Abstract
The logistical complication of long-term mine planning involves deciding the sequential extraction of materials from the mine pit and their subsequent processing steps based on geological, geometrical, and resource constraints. The net present value (NPV) of profit over the mine's lifespan usually forms the sole objective for this problem, which is considered as the NP-hard precedence-constrained production scheduling problem (PCPSP) as well. However, increased pressure for more sustainable and carbon-aware industries also calls for environmental indicators to be considered. In this paper, we enhance the generic PCPSP formulation into a multi-objective optimization (MOO) problem whereby carbon cost forms an additional objective. We apply the Non-Dominated Sorting Genetic Algorithm II (NSGA-II) to this formulation and experiment with variants to the solution generation. Our tailored application of the NSGA-II using a set of real-world inspired datasets can form an approximated Pareto front for planners to observe stipulated annual carbon emission targets. It also displays that tailored variants of the NSGA-II can produce diverse solutions that are close to the true Pareto front.
Keywords
precedence-constraint production scheduling, resource capacity optimization, multi-objective evolutionary algorithm, sustainability
Discipline
Artificial Intelligence and Robotics | Theory and Algorithms
Research Areas
Intelligent Systems and Optimization
Publication
Proceedings of the Fourteenth International Conference on Computational Logistics, Berlin, Germany, 2023 September 6-8
First Page
1
Last Page
16
City or Country
ICCL
Citation
NURUL ASYIKEEN BINTE AZHAR; GUNAWAN, Aldy; CHENG, Shih-Fen; and LEONARDI, Erwin.
Carbon-aware mine planning with a novel multi-objective framework. (2023). Proceedings of the Fourteenth International Conference on Computational Logistics, Berlin, Germany, 2023 September 6-8. 1-16.
Available at: https://ink.library.smu.edu.sg/sis_research/8074
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