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| DOI | 10.1016/J.MINENG.2022.107886 | ||||
| Año | 2022 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Deep learning (DL), a subset of machine learning (ML) has been a popular research interest after obtaining remarkable achievements on various tasks like image classification, object detection, language processing, and artificial intelligence. However, the successes of these algorithms were highly dependent on human expertise for hyperparameter optimisation and data preparation. As a result, widespread application of DL systems in minerals processing is still absent despite the increasing ability to collect data from process information (PI) and assay data. Automated Machine Learning (AutoML) is an emerging area of research which aims to automate the development of ready-to-use end-to-end ML models with little to no user ML knowledge. However, existing commercially available AutoML algorithms are not well designed for minerals processing data. In this study, we develop an AutoML algorithm to develop steady-state minerals processing models suitable for mine scheduling and process optimisation. The algorithm consists of data filtering, temporal resolution alignment, feature selection, neural network architecture search, and development. The AutoML algorithm was tested on three case studies of different processes and ore types. These case studies cover the range of difficulties of possible datasets encountered in the mining and processing industry from clean simulated data to noisy data with poor correlation. The algorithm successfully developed neural network models within hours from hourly raw PI and/or daily assay data with no human intervention. These models derived from process data have minimal errors as low as < 3 % for major valuables like Ni and Cu, 6–7 % for by-products like Au, 8–10 % for deleterious minerals like MgO, and 5–8 % for gangue. The algorithm was also designed so that expert minerals processing knowledge can influence the pipeline to improve the quality of models. As a result, the AutoML algorithm becomes a powerful tool for mining and mineral processing experts to apply their domain knowledge of the process to develop models of equipment or processing circuits.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Koh, Edwin J.Y. | Hombre |
Canon Hill - Australia
The University of Queensland - Australia Orica - Australia UNIV QUEENSLAND - Australia |
| 2 | Amini, Eiman | - |
Canon Hill - Australia
Orica - Australia |
| 3 | Gaur, Shruti | Mujer |
Canon Hill - Australia
Orica - Australia |
| 4 | Becerra Maquieira, Miguel | Hombre |
Teck Resources Ltd. - Canadá
Teck Resources Chile Ltd - Chile |
| 4 | Maquieira, Miguel Becerra | Hombre |
Teck Resources Chile Ltd - Chile
Teck Resources Ltd. - Canadá |
| 5 | Jara Heck, Christian | Hombre |
Teck Resources Carmen de Andacollo - Chile
|
| 5 | Heck, Christian Jara | Hombre |
Teck Resources Carmen Andacollo - Chile
|
| 6 | McLachlan, Geoffrey J. | Hombre |
The University of Queensland - Australia
UNIV QUEENSLAND - Australia |
| 7 | Beaton, N. | Hombre |
Canon Hill - Australia
Orica - Australia |
| Agradecimiento |
|---|
| This research would not have been possible without the financial support from Orica. The authors would also like to thank AngloAmerican and Teck for the effort in collecting and sharing the data for analysis. |
| This research would not have been possible without the financial support from Orica. The authors would also like to thank Anglo American and Teck for the effort in collecting and sharing the data for analysis. |