Fallout

java.lang.Object

smile.validation.metric.Fallout

All Implemented Interfaces:: Serializable, ToDoubleBiFunction<int[],int[]>, ClassificationMetric

public class Fallout extends Object implements ClassificationMetric

Fall-out, false alarm rate, or false positive rate (FPR)

     FPR = FP / N = FP / (FP + TN)

Fall-out is actually Type I error and closely related to specificity (1 - specificity).

See Also:

Field Summary

Fields

Modifier and Type

Field

Description

static final Fallout

instance

Default instance.
Constructor Summary

Constructors

Constructor

Description

Fallout()
Method Summary

Modifier and Type

Method

Description

static double

of(int[] truth, int[] prediction)

Calculates the false alarm rate.

double

score(int[] truth, int[] prediction)

Returns a score to measure the quality of classification.

String

toString()

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface smile.validation.metric.ClassificationMetric
applyAsDouble

Field Details
- instance
  
  public static final Fallout instance
  
  Default instance.
Constructor Details
- Fallout
  
  public Fallout()
Method Details
- score
  
  public double score(int[] truth, int[] prediction)
  
  Description copied from interface: ClassificationMetric
  
  Returns a score to measure the quality of classification.
  
  Specified by:
  
  score in interface ClassificationMetric
  
  Parameters:
  
  truth - the true class labels.
  
  prediction - the predicted class labels.
  
  Returns:
  
  the metric.
- of
  
  public static double of(int[] truth, int[] prediction)
  
  Calculates the false alarm rate.
  
  Parameters:
  
  truth - the ground truth.
  
  prediction - the prediction.
  
  Returns:
  
  the metric.
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object