ML Review Quiz: Model Selection

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Mean Absolute Error vs. Mean Squared Error *

2 points

All equal

Which model has the lowest MAE?

Which model has the lowest MSE?

Mean Squared Error vs. R^2 *

2 points

All equal

Which model has a lower MSE?

Which model has a higher R^2?

Number of Grid Search Evaluations *

The model you're experimenting with has 3 hyperparameters for which you want to test different values. How many parameter combinations are tested in a grid search, if you try 4, 6, and 10 values respectively for the 3 hyperparameters?

1 point

Number of Grid Search with Cross-Validation Evaluations *

Same hyperparameter test as in the previous question: If you're using a grid search with a 5-fold cross-validation to determine the best parameters, how many times in total is your model trained?

1 point

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