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Are lift and X^2 Good Measures of Correlation?

  • “Buy walnuts buy milk [1%, 80%]” is misleading if 85% of customers buy milk
  • Support and confidence are not good to indicate correlations
  • Over 20 interestingness measures have been proposed (see Tan, Kumar, Sritastava @KDD’02)
  • Which are good ones?

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