| BooleanCategory | 
 A category for one-class classifiers. 
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| ClassificationTester<S extends Observation,T extends Category> | 
 Classes implementing this interface provide the means to test a training mechanism 
 for performance. 
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| CrossValidator<S extends Observation,T extends Category> | 
 Performs cross-validation in a classifier, i.e. 
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| DefaultObservation | 
 A default observation is a vector of double values. 
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| DoubleCategory | 
 A category for multi-class classification using a double as identifier. 
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| GridSearchParameterLearner<S extends Observation,T extends Category> | 
 A grid-search approach for learning parameters. 
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| ParameterSet | 
 A set of parameters that can be given to a trainer to 
 specifiy the training task. 
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| ParameterTrainer<S extends Observation,T extends Category> | 
 Performs a parameter training on a given trainer, i.e. 
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| TrainingParameter | 
 A single parameter for a training method. 
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| TrainingSet<S extends Observation,T extends Category> | 
 A set of observations together with their category. 
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