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Informedness#

Informedness a multiclass generalization of Youden's J Statistic and can be interpreted as the probability that an estimator will make an informed prediction. Its value ranges from -1 through 1 and has a value of 0 when the test yields no useful information.

Informedness=TPTP+FN+TPTN+FP1

Estimator Compatibility: Classifier, Anomaly Detector

Output Range: -1 to 1

Parameters#

This metric does not have any parameters.

Example#

use Rubix\ML\CrossValidation\Metrics\Informedness;

$metric = new Informedness();

References#


  1. W. J. Youden. (1950). Index for Rating Diagnostic Tests. 


Last update: 2021-03-03