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Mining Class Comparisons

  • Comparison: Comparing two or more classes
  • Method:
    • Partition the set of relevant data into the target class and the contrasting class(es)
    • Generalize both classes to the same high level concepts
    • Compare tuples with the same high level descriptions
    • Present for every tuple its description and two measures
      • support - distribution within single class
      • comparison - distribution between classes
    • Highlight the tuples with strong discriminant features
  • Relevance Analysis:
    • Find attributes (features) which best distinguish different classes

Speaker notes:

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