The Effect of Class Imbalance on Precision-Recall Curves
In this note, I study how the precision of a binary classifier depends on the ratio r of positive to negative cases in the test set, as well as the classifier's true and false-positive rates. This relationship allows prediction of how the precision-recall curve will change with r, which seems n...
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| Format: | Article |
| Language: | English |
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NLM (Medline)
2021
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| Online Access: | View Fulltext in Publisher |