Research Article
Multigrades Classification Model of Magnesite Ore Based on SAE and ELM
Table 3
Confusion matrix structure of the integrated accuracy ELM training group output.
| The expected training set | The predicted training set | Top grade | First grade | Second grade | Third grade | Fourth grade | Waste ore |
| Top grade | 72 | 0 | 0 | 0 | 0 | 0 | First grade | 0 | 73 | 1 | 1 | 0 | 0 | Second grade | 0 | 0 | 71 | 0 | 0 | 0 | Third grade | 0 | 0 | 0 | 79 | 0 | 0 | Fourth grade | 0 | 0 | 0 | 0 | 72 | 0 | Waste ore | 0 | 0 | 0 | 0 | 0 | 70 |
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