org.apache.mahout.classifier.sgd
Interface Gradient

All Known Implementing Classes:
DefaultGradient, MixedGradient, RankingGradient

public interface Gradient

Provides the ability to inject a gradient into the SGD logistic regresion. Typical uses of this are to use a ranking score such as AUC instead of a normal loss function.


Method Summary
 Vector apply(String groupKey, int actual, Vector instance, AbstractVectorClassifier classifier)
           
 

Method Detail

apply

Vector apply(String groupKey,
             int actual,
             Vector instance,
             AbstractVectorClassifier classifier)


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