Package dragon.ir.classification.multiclass

Reducing multi-class classification to binary classifiers.

See:
Description

Interface Summary

CodeMatrix	Code Matrix Interface
LossFunction	Loss Function Interface
MultiClassDecoder	Interface for Multi-class Decoder

Class Summary

AbstractCodeMatrix	Abstract Code Matrix
AllPairCodeMatrix	Pairwise Code Matrix
HingeLoss	Hinge Loss Function
LinearLoss	Linear Loss Function
LossMultiClassDecoder	Loss-based Multi-class Decoder
OVACodeMatrix	One-versus-all Code Matrix

Package dragon.ir.classification.multiclass Description

Reducing multi-class classification to binary classifiers.

Package Specification

Some classifiers such as support vector machines (SVM) can only handle two-class classification problem. If the classification involves multi classes, it has to reduce the multi-class classification to a set of binary classifiers and then combine results from all binary classifiers to predict the label of an example.