KwickClips Artificial Intelligence · 41 sec · free
Is a lower MSE better?
Short answer. Yes. Lower error is better.
What data should you test on?
Unseen data only.
MSE, RMSE and splits
| Errors 2, 2, 2, 2: MSE = 4 |
| RMSE = square root = 2 |
| Test on unseen data only |
Remember
| Lower error is better |
| Train, validate, test |
How do you score a model that predicts marks? Use MSE and RMSE. Square each error and average: MSE is four. Its square root, RMSE, is two. Always test on unseen data. Lower is better. Train, validate, then test.
This clip is from the full lesson: Model Evaluation Metrics: Confusion Matrix, Accuracy, Precision, Recall and F1 — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417)
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Why is it called a confusion matrix?38 sec
What is the F1 formula?43 sec
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