Which metric is best used when dealing with imbalanced datasets?
Practice Questions
Q1
Which metric is best used when dealing with imbalanced datasets?
Accuracy
Precision
Recall
F1 Score
Questions & Step-by-Step Solutions
Which metric is best used when dealing with imbalanced datasets?
Step 1: Understand what an imbalanced dataset is. This means one class has many more examples than the other class.
Step 2: Learn about precision. Precision measures how many of the predicted positive cases were actually positive.
Step 3: Learn about recall. Recall measures how many of the actual positive cases were correctly predicted.
Step 4: Understand that in imbalanced datasets, accuracy can be misleading because a model can predict the majority class well but fail on the minority class.
Step 5: Learn about the F1 Score. The F1 Score combines precision and recall into one number, giving a better overall measure of performance for imbalanced datasets.
Step 6: Remember that the F1 Score is the harmonic mean of precision and recall, which means it balances both metrics.
