Tune Model Hyperparameters SNOWPRO-ADVANCED-DATA-SCIENTIST Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which strategy is most effective for reducing the wall-clock time of hyperparameter tuning when computational resources are limited?

   • ARunning multiple hyperparameter evaluations in parallel
   • BUsing a larger search space
   • CIncreasing the number of cross-validation folds
   • DTraining each model for more epochs
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   A data scientist is using GridSearchCV to tune a random forest. They have 4 hyperparameters, each with 5 possible values. How many model fits will be performed if they use 5-fold cross-validation?

   • A3125
   • B125
   • C625
   • D20
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   In k-fold cross-validation, what does the 'k' represent?

   • AThe number of hyperparameter combinations to test
   • BThe number of clusters in the dataset
   • CThe number of features used in the model
   • DThe number of times the model is trained and evaluated on different data splits
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A data scientist is tuning a random forest classifier for a binary classification problem with a highly imbalanced dataset (5% positive class). They plan to use grid search with 5-fold cross-validation. Which evaluation metric should be used as the scoring function during grid search to best guide hyperparameter selection?

   • AR-squared
   • BAccuracy
   • CF1 score
   • DLog loss
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   For k-means clustering, what is the role of the hyperparameter k?

   • AIt determines the number of clusters the algorithm should form
   • BIt controls the maximum number of iterations for convergence
   • CIt sets the distance metric used to assign points to clusters
   • DIt defines the minimum number of points required to form a cluster
   Reveal Solution Discussion Select an answer first