Anomaly detection metrics#

ice.anomaly_detection.metrics.accuracy(pred: ndarray, target: ndarray) → float[source]#

Accuracy of the classification is the number of true positives divided by the number of examples.

Parameters:

  • pred (np.ndarray) – predictions.

  • target (np.ndarray) – target values.

Returns:

accuracy.

Return type:

float

ice.anomaly_detection.metrics.false_positive_rate(pred: ndarray, target: ndarray) → ndarray[float][source]#

False Positive Rate, aka False Alarm Rate is the number of false alarms i divided by the number of normal samples.

Parameters:

  • pred (np.ndarray) – predictions.

  • target (np.ndarray) – target values.

Returns:

list of float values with true positive rate for each fault.

Return type:

list

ice.anomaly_detection.metrics.true_positive_rate(pred: ndarray, target: ndarray) → ndarray[float][source]#

True Positive Rate is the number of detected faults i divided by the number of faults i.

Parameters:

  • pred (np.ndarray) – predictions.

  • target (np.ndarray) – target values.

Returns:

list of float values with true positive rate for each fault.

Return type:

list