A marina slip-injury flag is a rare class, and the HyperparameterTuner is maximizing training accuracy. The rare class never moves the score. What should the tuner optimize instead?
Select an answer to reveal the explanation.
Short Explanation
Think of a rare slip-injury flag, and a tuner maximizing training accuracy. The rare class never moves the score. Point AMT at a validation objective such as AUC or F1.
Full Explanation
AMT must point at an appropriate validation objective. For a rare injury flag, AUC or F1 moves with the minority class; raw training accuracy does not. Translate is not an objective, and maximizing training loss is the wrong direction.