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.
\[
{\displaystyle Informedness = {\frac {\text{TP}}{{\text{TP}}+{\text{FN}}}}+{\frac {\text{TP}}{{\text{TN}}+{\text{FP}}}}-1}
\]
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#
-
W. J. Youden. (1950). Index for Rating Diagnostic Tests. ↩
Last update:
2021-03-03