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prapi::MultiClassifier< T, I > Class Template Reference

#include <MultiClassifier.h>

Inheritance diagram for prapi::MultiClassifier< T, I >:

List of all members.

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Detailed Description

template<class T, class I = std::string>
class prapi::MultiClassifier< T, I >

MultiClassifier combines class rankings from different classifiers and produces an overall result using a number of combination schemes.

Example:

 kNNClassifier<double> knn(samples,new EuclideanDistance<double>,4,3);
 MahalanobisClassifier<double> maha(samples,4);
 List<Classifier<double>*> lst(2);
 lst += &knn; lst += &maha;

 MultiClassifier<double> classifier(lst, new RankCombiner::BordaCount(4));
 classifier.holdOut(testingSamples);
 

Public Methods
	MultiClassifier (const util::List< Classifier< T, I, int > * > &classifiers, RankCombiner *combiner)
	Create a new MultiClassifier.
	MultiClassifier (const util::List< Classifier< T, I, int > * > &classifiers, RankCombiner &combiner)
	Create a new MultiClassifier.
int	getClassification (Sample< T, I, int > &sample) throw (ClassificationException&)
	Get the classification for a single sample.
void	leaveOneOut (void) throw (ClassificationException&)
	Perform a leave-one-out test on the training data.

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Constructor & Destructor Documentation

template<class T, class I = std::string> prapi::MultiClassifier< T, I >::MultiClassifier (  const util::List< Classifier< T, I, int > * > &    classifiers, RankCombiner *    combiner )  [inline]

Create a new MultiClassifier. The classifier will combine rankings from different classifiers. Parameters: classifiers  the classifiers whose rankings are combined combiner  a rank combiner that is able to produce a single class index out of multiple rankings. (automatically deleted)

template<class T, class I = std::string> prapi::MultiClassifier< T, I >::MultiClassifier (  const util::List< Classifier< T, I, int > * > &    classifiers, RankCombiner &    combiner )  [inline]

Create a new MultiClassifier. The classifier will combine rankings from different classifiers. Parameters: classifiers  the classifiers whose rankings are combined combiner  a rank combiner that is able to produce a single class index out of multiple rankings.

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Member Function Documentation

template<class T, class I> int prapi::MultiClassifier< T, I >::getClassification (  Sample< T, I, int > &    sample )  throw (ClassificationException&) [virtual]

Get the classification for a single sample. This method is used by holdOut and leaveOneOut to classify each sample. Subclasses must override this method. Parameters: sample  the sample to be classified Returns: the classification. Simple classfiers (like NN or kNN) use integers. More sophisticated ones may use any classification type. See also: Sample for more information. Implements prapi::Classifier< T, I, int >.

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The documentation for this class was generated from the following file:

• MultiClassifier.h

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Documentation generated on 11.09.2003 with Doxygen.
The documentation is copyrighted material.
Copyright © Topi Mäenpää 2003. All rights reserved.