I have a model that predicts the level of injury over 3 classes: Low, Medium and High. I wish to optimize the model parameters on the scoring basis of precision. However, precision is class specific, we can determine the precision of low, medium and high separately. Is there a way to determine something like "Overall Precision" from the confusion matrix?

  • $\begingroup$ Yes I do know about the F1 Score, however it is a function of precision and recall, which in turn are class specific again, so doesn't really solve my problem. Is it a good way to maximize precision of all classes by optimizing parameters on the basis of average precision of all classes? $\endgroup$ – Utkarsh Sah Mar 24 '18 at 7:16
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    $\begingroup$ The following link might be helpful: stats.stackexchange.com/questions/51296/… $\endgroup$ – Mahdi Shahbaba Mar 25 '18 at 3:04

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