org.apache.ctakes.utils.wiki
Class ApproximateSimilarity

java.lang.Object
  org.apache.lucene.search.similarities.Similarity
      org.apache.lucene.search.similarities.TFIDFSimilarity
          org.apache.lucene.search.similarities.DefaultSimilarity
              org.apache.ctakes.utils.wiki.ApproximateSimilarity

public class ApproximateSimilarity
extends org.apache.lucene.search.similarities.DefaultSimilarity

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.similarities.Similarity

org.apache.lucene.search.similarities.Similarity.ExactSimScorer, org.apache.lucene.search.similarities.Similarity.SimWeight, org.apache.lucene.search.similarities.Similarity.SloppySimScorer

Field Summary

Fields inherited from class org.apache.lucene.search.similarities.DefaultSimilarity

discountOverlaps

Constructor Summary

ApproximateSimilarity()

Method Summary

float	idf(long docFreq, long numDocs)
float	tf(int termFreq)

Methods inherited from class org.apache.lucene.search.similarities.DefaultSimilarity

computeNorm, coord, getDiscountOverlaps, queryNorm, scorePayload, setDiscountOverlaps, sloppyFreq, tf, toString

Methods inherited from class org.apache.lucene.search.similarities.TFIDFSimilarity

computeWeight, decodeNormValue, encodeNormValue, exactSimScorer, idfExplain, idfExplain, sloppySimScorer

Methods inherited from class java.lang.Object

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

Constructor Detail

ApproximateSimilarity

public ApproximateSimilarity()

Method Detail

idf

public final float idf(long docFreq,
                       long numDocs)

Overrides:

idf in class org.apache.lucene.search.similarities.DefaultSimilarity

tf

public final float tf(int termFreq)

Overrides:

tf in class org.apache.lucene.search.similarities.TFIDFSimilarity