Decision Trees in Machine Learning

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Questions and Answers

What is the process of dividing a node into two or more sub-nodes called?

  • Merging
  • Branching
  • Splitting (correct)
  • Pruning

What is the topmost node in a decision tree structure that represents the entire population or sample?

  • Parent Node
  • Decision Node
  • Leaf Node
  • Root Node (correct)

What is a node that does not split further called?

  • Leaf Node (correct)
  • Parent Node
  • Decision Node
  • Child Node

What is the process of removing sub-nodes of a decision node called?

<p>Pruning (C)</p> Signup and view all the answers

What is a subsection of the entire tree called?

<p>Sub-Tree (B)</p> Signup and view all the answers

What is the node that splits into further sub-nodes called?

<p>Decision Node (D)</p> Signup and view all the answers

What is the primary criterion for selecting the best attribute to split the data in a decision tree?

<p>Information gain (D)</p> Signup and view all the answers

What is the purpose of recursively partitioning the data in a decision tree?

<p>To split the data based on the best attribute (D)</p> Signup and view all the answers

What is a common stopping criterion for building a decision tree?

<p>Maximum depth reached (C)</p> Signup and view all the answers

What is a characteristic of a decision tree that makes it accessible to non-experts?

<p>Easy to understand and interpret (B)</p> Signup and view all the answers

What is a disadvantage of a single decision tree?

<p>Sensitive to small changes in data (B)</p> Signup and view all the answers

What is the primary advantage of using a random forest over a single decision tree?

<p>Improves generalization by averaging the probabilities (B)</p> Signup and view all the answers

What is the primary mechanism by which the random forest algorithm generates a prediction?

<p>By aggregating the predictions from multiple decision trees through voting (D)</p> Signup and view all the answers

What is the role of the decision tree algorithm in the random forest analogy?

<p>To ask friends about their individual travel experience and get one recommendation (B)</p> Signup and view all the answers

What is the outcome of the voting procedure in the random forest algorithm?

<p>A single best place for the trip (B)</p> Signup and view all the answers

How does the random forest algorithm handle the feature importance?

<p>It provides a relative importance score for each feature (D)</p> Signup and view all the answers

What is the application of the random forest algorithm in the context of loan applications?

<p>To identify loyal loan applicants (C)</p> Signup and view all the answers

What is the relationship between the random forest algorithm and the Boruta algorithm?

<p>The random forest algorithm lies at the base of the Boruta algorithm (B)</p> Signup and view all the answers

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