Class IndependenceChiSquared


  • public class IndependenceChiSquared
    extends Independence
    Normalized chi-squared measure of distance from independence

    Described as: "can be used for tasks that require high precision, against both short and long queries."

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      double score​(double freq, double expected)
      Computes distance from independence
      java.lang.String toString()  
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
    • Constructor Detail

      • IndependenceChiSquared

        public IndependenceChiSquared()
        Sole constructor.
    • Method Detail

      • score

        public double score​(double freq,
                            double expected)
        Description copied from class: Independence
        Computes distance from independence
        Specified by:
        score in class Independence
        Parameters:
        freq - actual term frequency
        expected - expected term frequency