Research Article
The Discriminants of Long and Short Duration Failures in Fulfillment Sortation Equipment: A Machine Learning Approach
Table 1
Common classification model evaluation metrics in the equipment reliability context.
| Metric | Formula | Description |
| Accuracy (acc) | | The ratio of correct predictions by all predictions made | Precision (p) | | The ratio of correct positive predictions by all positively predicted classes | Recall (r) | | The ratio of correct positive predictions by all true positive classes | f1-score (f1) | | The harmonic mean between precision and recall | Fall out rate (fpr) | | The probability of a false alarm | Error rate (err) | | The ratio of incorrect predictions by all predictions made |
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