Package weka.classifiers.meta
Class Grading
- java.lang.Object
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Cloneable
,CapabilitiesHandler
,OptionHandler
,Randomizable
,RevisionHandler
,TechnicalInformationHandler
public class Grading extends Stacking implements TechnicalInformationHandler
Implements Grading. The base classifiers are "graded".
For more information, see
A.K. Seewald, J. Fuernkranz: An Evaluation of Grading Classifiers. In: Advances in Intelligent Data Analysis: 4th International Conference, Berlin/Heidelberg/New York/Tokyo, 115-124, 2001. BibTeX:@inproceedings{Seewald2001, address = {Berlin/Heidelberg/New York/Tokyo}, author = {A.K. Seewald and J. Fuernkranz}, booktitle = {Advances in Intelligent Data Analysis: 4th International Conference}, editor = {F. Hoffmann et al.}, pages = {115-124}, publisher = {Springer}, title = {An Evaluation of Grading Classifiers}, year = {2001} }
Valid options are:-M <scheme specification> Full name of meta classifier, followed by options. (default: "weka.classifiers.rules.Zero")
-X <number of folds> Sets the number of cross-validation folds.
-S <num> Random number seed. (default 1)
-B <classifier specification> Full class name of classifier to include, followed by scheme options. May be specified multiple times. (default: "weka.classifiers.rules.ZeroR")
-D If set, classifier is run in debug mode and may output additional info to the console
- Version:
- $Revision: 1.13 $
- Author:
- Alexander K. Seewald (alex@seewald.at), Eibe Frank (eibe@cs.waikato.ac.nz)
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description Grading()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description double[]
distributionForInstance(Instance instance)
Returns class probabilities for a given instance using the stacked classifier.java.lang.String
getRevision()
Returns the revision string.TechnicalInformation
getTechnicalInformation()
Returns an instance of a TechnicalInformation object, containing detailed information about the technical background of this class, e.g., paper reference or book this class is based on.java.lang.String
globalInfo()
Returns a string describing classifierstatic void
main(java.lang.String[] argv)
Main method for testing this class.java.lang.String
toString()
Output a representation of this classifier-
Methods inherited from class weka.classifiers.meta.Stacking
buildClassifier, getCapabilities, getMetaClassifier, getNumFolds, getOptions, listOptions, metaClassifierTipText, numFoldsTipText, setMetaClassifier, setNumFolds, setOptions
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Methods inherited from class weka.classifiers.RandomizableMultipleClassifiersCombiner
getSeed, seedTipText, setSeed
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Methods inherited from class weka.classifiers.MultipleClassifiersCombiner
classifiersTipText, getClassifier, getClassifiers, setClassifiers
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Methods inherited from class weka.classifiers.Classifier
classifyInstance, debugTipText, forName, getDebug, makeCopies, makeCopy, setDebug
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Method Detail
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globalInfo
public java.lang.String globalInfo()
Returns a string describing classifier- Overrides:
globalInfo
in classStacking
- Returns:
- a description suitable for displaying in the explorer/experimenter gui
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getTechnicalInformation
public TechnicalInformation getTechnicalInformation()
Returns an instance of a TechnicalInformation object, containing detailed information about the technical background of this class, e.g., paper reference or book this class is based on.- Specified by:
getTechnicalInformation
in interfaceTechnicalInformationHandler
- Overrides:
getTechnicalInformation
in classStacking
- Returns:
- the technical information about this class
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distributionForInstance
public double[] distributionForInstance(Instance instance) throws java.lang.Exception
Returns class probabilities for a given instance using the stacked classifier. One class will always get all the probability mass (i.e. probability one).- Overrides:
distributionForInstance
in classStacking
- Parameters:
instance
- the instance to be classified- Returns:
- the class distribution for the given instance
- Throws:
java.lang.Exception
- if instance could not be classified successfully
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toString
public java.lang.String toString()
Output a representation of this classifier
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getRevision
public java.lang.String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Overrides:
getRevision
in classStacking
- Returns:
- the revision
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main
public static void main(java.lang.String[] argv)
Main method for testing this class.- Parameters:
argv
- should contain the following arguments: -t training file [-T test file] [-c class index]
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