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Questions and Answers

What technique is used to group items by similarity?

  • Classification
  • Association Rules
  • Regression
  • Clustering (correct)

    • Which method is used to discover relationships between actions or items?

  • Linear Regression
  • Naïve Bayes
  • K-means clustering
  • Apriori (correct)

    • What is the purpose of Regression?

  • Determine relationship between outcome and input variables (correct)
  • Group items by similarity
  • Assign labels to objects
  • Discover relationships between actions or items

    • Which technique involves sorting items into groups by similarity?

    <p>Clustering</p> Signup and view all the answers

    What is the main goal of Cluster Analysis?

    <p>Minimize intra-cluster distances</p> Signup and view all the answers

    Which method finds similarities and relationships, but is not a predictive method?

    <p>Apriori</p> Signup and view all the answers

    Which type of clustering involves the concept of well-separated clusters?

    <p>Center-Based Clusters</p> Signup and view all the answers

    What is the center of a cluster often represented by in center-based clustering?

    <p>Average of all points in the cluster</p> Signup and view all the answers

    In K-Means Clustering, what is used to measure 'closeness' between points?

    <p>Minkowski Distance</p> Signup and view all the answers

    What is the complexity of the K-Means Clustering algorithm in terms of attributes?

    <p>$O(n * K * I * d)$</p> Signup and view all the answers

    What is the stopping condition often used in K-Means Clustering?

    <p>'Until relatively few points change clusters'</p> Signup and view all the answers

    What is a common use case for K-Means Clustering?

    <p>Real-time data processing</p> Signup and view all the answers

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