Clustering and K-means Quiz
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Questions and Answers

What is the initial step in the K-means algorithm?

  • Assign each object to the cluster with the nearest seed point (correct)
  • Readjust centers
  • Iterate over each point and get distance to each cluster center
  • Recalculate centers as the mean of the points in a cluster
  • What is done when there are no changes in the assignment of points to clusters in K-means?

  • The algorithm restarts from the beginning
  • The cluster centers are recalculated
  • The algorithm is considered done (correct)
  • The points are reassigned to the nearest center
  • What is the purpose of recalculating centers in K-means?

  • To assign each object to the cluster with the nearest seed point
  • To readjust centers
  • To find the mean of the points in a cluster (correct)
  • To iterate over each point and get distance to each cluster center
  • What does 'hard clustering' refer to in K-means?

    <p>Assigning each example to the closest center without ambiguity</p> Signup and view all the answers

    What action is taken if there are no changes after reassigning points and readjusting centers in K-means?

    <p>The algorithm is considered done</p> Signup and view all the answers

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