cc.mallet.fst.confidence
Class GammaAverageConfidenceEstimator

java.lang.Object
  cc.mallet.fst.confidence.TransducerConfidenceEstimator
      cc.mallet.fst.confidence.GammaAverageConfidenceEstimator

All Implemented Interfaces:

java.io.Serializable

public class GammaAverageConfidenceEstimator
extends TransducerConfidenceEstimator

Calculates the confidence in an extracted segment by taking the average of P(s_i|o) for each state in the segment.

See Also:

Serialized Form

Field Summary

Fields inherited from class cc.mallet.fst.confidence.TransducerConfidenceEstimator

model

Constructor Summary

GammaAverageConfidenceEstimator(Transducer model)

Method Summary

double

estimateConfidenceFor(Segment segment, SumLatticeDefault cachedLattice) Calculates the confidence in the tagging of a Segment.

Methods inherited from class cc.mallet.fst.confidence.TransducerConfidenceEstimator

estimateConfidenceFor, getSegmentConfidences, getTransducer, rankSegmentsByConfidence, rankSegmentsByConfidence

Methods inherited from class java.lang.Object

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

Constructor Detail

GammaAverageConfidenceEstimator

public GammaAverageConfidenceEstimator(Transducer model)

Method Detail

estimateConfidenceFor

public double estimateConfidenceFor(Segment segment,
                                    SumLatticeDefault cachedLattice)

Calculates the confidence in the tagging of a Segment.

Specified by:

estimateConfidenceFor in class TransducerConfidenceEstimator

Returns:

0-1 confidence value. higher = more confident.