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</p> Signup and view all the answers

    What is a subsection of the entire tree called?

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

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

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

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

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

    What is a disadvantage of a single decision tree?

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

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