Pros and Cons of Decision Trees
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Questions and Answers

What is a key advantage of bootstrapping?

  • It eliminates the need for pruning in decision trees
  • It guarantees accurate predictions for each data point
  • It reduces variance compared with an ordinary tree (correct)
  • It ensures sequential growth of trees for better model fit
  • How does boosting differ from bagging?

  • Boosting reduces variance compared with an ordinary tree, while bagging does not
  • Bagging guarantees slow learning, while boosting allows for faster learning
  • Boosting uses sequential growth, while bagging grows trees independently (correct)
  • Bagging applies several weak learners one after the other, while boosting grows trees in parallel
  • What is a characteristic of AdaBoost?

  • It guarantees accurate predictions for each data point
  • It reduces variance compared with an ordinary tree
  • It applies several weak-learners one after the other (correct)
  • It grows trees independently from each other in parallel
  • Why is bagging considered a general-purpose technique?

    <p>It is useful for various regression &amp; classification techniques, especially for trees</p> Signup and view all the answers

    What is a characteristic of XGBoost (Extreme Gradient Boosting)?

    <p>It is known for its ability to handle missing data and its speed</p> Signup and view all the answers

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