opennlp.tools.chunker
Class ChunkerEvaluator

java.lang.Object
  opennlp.tools.util.eval.Evaluator<ChunkSample>
      opennlp.tools.chunker.ChunkerEvaluator

public class ChunkerEvaluator
extends Evaluator<ChunkSample>

The ChunkerEvaluator measures the performance of the given Chunker with the provided reference ChunkSamples.

See Also:

Evaluator, Chunker, ChunkSample

Constructor Summary

ChunkerEvaluator(Chunker chunker)
Initializes the current instance with the given Chunker.

Method Summary

void	evaluateSample(ChunkSample reference) Evaluates the given reference ChunkSample object.
FMeasure	getFMeasure()

Methods inherited from class opennlp.tools.util.eval.Evaluator

evaluate

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChunkerEvaluator

public ChunkerEvaluator(Chunker chunker)

Initializes the current instance with the given Chunker.

Parameters:

chunker - the Chunker to evaluate.

Method Detail

evaluateSample

public void evaluateSample(ChunkSample reference)

Evaluates the given reference ChunkSample object. This is done by finding the phrases with the Chunker in the sentence from the reference ChunkSample. The found phrases are then used to calculate and update the scores.

Specified by:

evaluateSample in class Evaluator<ChunkSample>

Parameters:

reference - the reference ChunkSample.

getFMeasure

public FMeasure getFMeasure()