Package opennlp.tools.util.eval
Class Evaluator<T>
java.lang.Object
opennlp.tools.util.eval.Evaluator<T>
- Direct Known Subclasses:
ChunkerEvaluator,DetokenizerEvaluator,DocumentCategorizerEvaluator,LanguageDetectorEvaluator,LemmatizerEvaluator,ParserEvaluator,POSEvaluator,SentenceDetectorEvaluator,TokenizerEvaluator,TokenNameFinderEvaluator
An abstract base class for evaluators.
Evaluation results are the arithmetic mean of the
scores calculated for each reference sample.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidevaluate(ObjectStream<T> samples) Reads allsample objectsand evaluates each instance via theevaluateSample(Object)method.voidevaluateSample(T sample) Evaluates the given reference object.
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Constructor Details
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Evaluator
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Method Details
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evaluateSample
Evaluates the given reference object. The default implementation callsprocessSample(Object)note: this method will be changed to private in the future. Implementations should override
processSample(Object)instead. If this method is overridden, the implementation has to update the score after every invocation.- Parameters:
sample- Asampleto be evaluated.
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evaluate
Reads allsample objectsand evaluates each instance via theevaluateSample(Object)method.- Parameters:
samples- Thestreamof reference which shall be evaluated.- Throws:
IOException- Thrown if IO errors occurred.
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