org.apache.lucene.search.similarities
Class LMSimilarity.LMStats

java.lang.Object
  org.apache.lucene.search.similarities.Similarity.SimWeight
      org.apache.lucene.search.similarities.BasicStats
          org.apache.lucene.search.similarities.LMSimilarity.LMStats

Enclosing class:

LMSimilarity

public static class LMSimilarity.LMStats
extends BasicStats

Stores the collection distribution of the current term.

Field Summary

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

avgFieldLength, docFreq, numberOfDocuments, numberOfFieldTokens, queryBoost, topLevelBoost, totalBoost, totalTermFreq

Constructor Summary

LMSimilarity.LMStats(String field, float queryBoost)
Creates LMStats for the provided field and query-time boost

Method Summary

float	getCollectionProbability() Returns the probability that the current term is generated by the collection.
void	setCollectionProbability(float collectionProbability) Sets the probability that the current term is generated by the collection.

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

getAvgFieldLength, getDocFreq, getNumberOfDocuments, getNumberOfFieldTokens, getTotalBoost, getTotalTermFreq, getValueForNormalization, normalize, rawNormalizationValue, setAvgFieldLength, setDocFreq, setNumberOfDocuments, setNumberOfFieldTokens, setTotalTermFreq

Methods inherited from class java.lang.Object

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

Constructor Detail

LMSimilarity.LMStats

public LMSimilarity.LMStats(String field,
                            float queryBoost)

Creates LMStats for the provided field and query-time boost

Method Detail

getCollectionProbability

public final float getCollectionProbability()

Returns the probability that the current term is generated by the collection.

setCollectionProbability

public final void setCollectionProbability(float collectionProbability)

Sets the probability that the current term is generated by the collection.