Package ai.libs.jaicore.ml.core.evaluation.measure.multilabel

Class InstanceWiseF1

  • All Implemented Interfaces:
    IMeasure<double[],​java.lang.Double>, IMultilabelMeasure
    Direct Known Subclasses:
    F1MacroAverageL
    public class InstanceWiseF1
extends ADecomposableMultilabelMeasure
    Instance-wise F1 measure for multi-label classifiers. For reference see Wu, Xi-Zhu; Zhou, Zhi-Hua: A Unified View of Multi-Label Performance Measures (ICML / JMLR 2017)

    • Constructor Summary

      Constructors 
      Constructor Description
      InstanceWiseF1()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Double calculateAvgMeasure​(java.util.List<double[]> actual, java.util.List<double[]> expected)
      Computes the measure for lists of input actual and the expected outcome expected and aggregates the measured values with the mean, as this is the most frequently used aggregate function.
      java.lang.Double calculateMeasure​(double[] actual, double[] expected)
      Computes the measure for a measured input actual and the expected outcome expected.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • InstanceWiseF1

        public InstanceWiseF1()

    • Method Detail

      • calculateMeasure

        public java.lang.Double calculateMeasure​(double[] actual,
                                         double[] expected)
        Description copied from interface: IMeasure
        Computes the measure for a measured input actual and the expected outcome expected.
        Parameters:
        actual - The actually available values.
        expected - The expected values to compare the actual values with.
        Returns:
        The return value of the measure.

      • calculateAvgMeasure

        public java.lang.Double calculateAvgMeasure​(java.util.List<double[]> actual,
                                            java.util.List<double[]> expected)
        Description copied from interface: IMeasure
        Computes the measure for lists of input actual and the expected outcome expected and aggregates the measured values with the mean, as this is the most frequently used aggregate function.
        Specified by:
        calculateAvgMeasure in interface IMeasure<double[],​java.lang.Double>
        Overrides:
        calculateAvgMeasure in class ADecomposableDoubleMeasure<double[]>
        Parameters:
        actual - The list of actually available values.
        expected - The list of expected values to compare the actual values with.
        Returns:
        The mean of return values as output by the instance-wise measure.