?? examplebasedcrossvalidation.java
字號:
package mulan.evaluation;
public class ExampleBasedCrossValidation extends ExampleBasedEvaluation
{
protected ExampleBasedEvaluation[] folds;
protected ExampleBasedCrossValidation(ExampleBasedEvaluation[] folds)
{
this(folds, 1.0);
}
protected ExampleBasedCrossValidation(ExampleBasedEvaluation[] folds,
double forgivenessRate)
{
super(forgivenessRate);
this.folds = folds;
computeMeasures();
}
protected void computeMeasures()
{
accuracy = 0;
recall = 0;
precision = 0;
fmeasure = 0;
hammingLoss = 0;
subsetAccuracy = 0;
for(int i = 0; i < folds.length; i++)
{
accuracy += folds[i].accuracy;
recall += folds[i].recall;
precision += folds[i].precision;
fmeasure += folds[i].fmeasure;
hammingLoss += folds[i].hammingLoss;
subsetAccuracy += folds[i].subsetAccuracy;
//System.out.println((i+1)+" fold Hamming loss: "+ folds[i].hammingLoss);
}
int n = folds.length;
accuracy /= n;
recall /= n;
precision /= n;
fmeasure /= n;
hammingLoss /= n;
subsetAccuracy /= n;
}
}
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