Uses of Class
org.apache.lucene.search.similarities.BasicStats

Packages that use BasicStats

Package	Description
org.apache.lucene.search.similarities	This package contains the various ranking models that can be used in Lucene.

Uses of BasicStats in org.apache.lucene.search.similarities

Subclasses of BasicStats in org.apache.lucene.search.similarities

Modifier and Type	Class	Description
static class	LMSimilarity.LMStats	Stores the collection distribution of the current term.

Methods in org.apache.lucene.search.similarities that return BasicStats

Modifier and Type	Method	Description
protected BasicStats	LMSimilarity.newStats(String field, double boost)
protected BasicStats	SimilarityBase.newStats(String field, double boost)	Factory method to return a custom stats object

Methods in org.apache.lucene.search.similarities with parameters of type BasicStats

Modifier and Type	Method	Description
double	IndriDirichletSimilarity.IndriCollectionModel.computeProbability(BasicStats stats)
double	LMSimilarity.CollectionModel.computeProbability(BasicStats stats)	Computes the probability p(w|C) according to the language model strategy for the current term.
double	LMSimilarity.DefaultCollectionModel.computeProbability(BasicStats stats)
abstract Explanation	AfterEffect.explain(BasicStats stats, double tfn)	Returns an explanation for the score.
final Explanation	AfterEffectB.explain(BasicStats stats, double tfn)
final Explanation	AfterEffectL.explain(BasicStats stats, double tfn)
protected void	Axiomatic.explain(List<Explanation> subs, BasicStats stats, double freq, double docLen)
protected Explanation	Axiomatic.explain(BasicStats stats, Explanation freq, double docLen)
abstract Explanation	BasicModel.explain(BasicStats stats, double tfn, double aeTimes1pTfn)	Returns an explanation for the score.
Explanation	BasicModelG.explain(BasicStats stats, double tfn, double aeTimes1pTfn)
Explanation	BasicModelIF.explain(BasicStats stats, double tfn, double aeTimes1pTfn)
final Explanation	BasicModelIn.explain(BasicStats stats, double tfn, double aeTimes1pTfn)
Explanation	BasicModelIne.explain(BasicStats stats, double tfn, double aeTimes1pTfn)
protected Explanation	DFISimilarity.explain(BasicStats stats, Explanation freq, double docLen)
protected void	DFRSimilarity.explain(List<Explanation> subs, BasicStats stats, double freq, double docLen)
protected Explanation	DFRSimilarity.explain(BasicStats stats, Explanation freq, double docLen)
Explanation	Distribution.explain(BasicStats stats, double tfn, double lambda)	Explains the score.
protected void	IBSimilarity.explain(List<Explanation> subs, BasicStats stats, double freq, double docLen)
protected Explanation	IBSimilarity.explain(BasicStats stats, Explanation freq, double docLen)
protected void	IndriDirichletSimilarity.explain(List<Explanation> subs, BasicStats stats, double freq, double docLen)
abstract Explanation	Lambda.explain(BasicStats stats)	Explains the lambda parameter.
final Explanation	LambdaDF.explain(BasicStats stats)
final Explanation	LambdaTTF.explain(BasicStats stats)
protected void	LMDirichletSimilarity.explain(List<Explanation> subs, BasicStats stats, double freq, double docLen)
protected Explanation	LMDirichletSimilarity.explain(BasicStats stats, Explanation freq, double docLen)
protected void	LMJelinekMercerSimilarity.explain(List<Explanation> subs, BasicStats stats, double freq, double docLen)
protected Explanation	LMJelinekMercerSimilarity.explain(BasicStats stats, Explanation freq, double docLen)
protected void	LMSimilarity.explain(List<Explanation> subExpls, BasicStats stats, double freq, double docLen)
Explanation	Normalization.explain(BasicStats stats, double tf, double len)	Returns an explanation for the normalized term frequency.
Explanation	Normalization.NoNormalization.explain(BasicStats stats, double tf, double len)
Explanation	NormalizationH1.explain(BasicStats stats, double tf, double len)
Explanation	NormalizationH2.explain(BasicStats stats, double tf, double len)
Explanation	NormalizationH3.explain(BasicStats stats, double tf, double len)
Explanation	NormalizationZ.explain(BasicStats stats, double tf, double len)
protected void	SimilarityBase.explain(List<Explanation> subExpls, BasicStats stats, double freq, double docLen)	Subclasses should implement this method to explain the score.
protected Explanation	SimilarityBase.explain(BasicStats stats, Explanation freq, double docLen)	Explains the score.
protected void	LMSimilarity.fillBasicStats(BasicStats stats, CollectionStatistics collectionStats, TermStatistics termStats)	Computes the collection probability of the current term in addition to the usual statistics.
protected void	SimilarityBase.fillBasicStats(BasicStats stats, CollectionStatistics collectionStats, TermStatistics termStats)	Fills all member fields defined in BasicStats in stats.
protected abstract double	Axiomatic.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component (only for F3EXp and F3LOG)
protected double	AxiomaticF1EXP.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component
protected double	AxiomaticF1LOG.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component
protected double	AxiomaticF2EXP.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component
protected double	AxiomaticF2LOG.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component
protected double	AxiomaticF3EXP.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component
protected double	AxiomaticF3LOG.gamma(BasicStats stats, double freq, double docLen)	compute the gamma component
protected abstract double	Axiomatic.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected double	AxiomaticF1EXP.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected double	AxiomaticF1LOG.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected double	AxiomaticF2EXP.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected double	AxiomaticF2LOG.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected double	AxiomaticF3EXP.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected double	AxiomaticF3LOG.idf(BasicStats stats, double freq, double docLen)	compute the inverted document frequency component
protected abstract Explanation	Axiomatic.idfExplain(BasicStats stats, double freq, double docLen)	Explain the score of the inverted document frequency component for a single document
protected Explanation	AxiomaticF1EXP.idfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF1LOG.idfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2EXP.idfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2LOG.idfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3EXP.idfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3LOG.idfExplain(BasicStats stats, double freq, double docLen)
abstract float	Lambda.lambda(BasicStats stats)	Computes the lambda parameter.
final float	LambdaDF.lambda(BasicStats stats)
final float	LambdaTTF.lambda(BasicStats stats)
protected abstract double	Axiomatic.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected double	AxiomaticF1EXP.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected double	AxiomaticF1LOG.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected double	AxiomaticF2EXP.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected double	AxiomaticF2LOG.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected double	AxiomaticF3EXP.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected double	AxiomaticF3LOG.ln(BasicStats stats, double freq, double docLen)	compute the document length component
protected abstract Explanation	Axiomatic.lnExplain(BasicStats stats, double freq, double docLen)	Explain the score of the document length component for a single document
protected Explanation	AxiomaticF1EXP.lnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF1LOG.lnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2EXP.lnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2LOG.lnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3EXP.lnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3LOG.lnExplain(BasicStats stats, double freq, double docLen)
double	Axiomatic.score(BasicStats stats, double freq, double docLen)
abstract double	BasicModel.score(BasicStats stats, double tfn, double aeTimes1pTfn)	Returns the informative content score combined with the after effect, more specifically informationContentScore * aeTimes1pTfn / (1 + tfn).
final double	BasicModelG.score(BasicStats stats, double tfn, double aeTimes1pTfn)
final double	BasicModelIF.score(BasicStats stats, double tfn, double aeTimes1pTfn)
final double	BasicModelIn.score(BasicStats stats, double tfn, double aeTimes1pTfn)
final double	BasicModelIne.score(BasicStats stats, double tfn, double aeTimes1pTfn)
protected double	DFISimilarity.score(BasicStats stats, double freq, double docLen)
protected double	DFRSimilarity.score(BasicStats stats, double freq, double docLen)
abstract double	Distribution.score(BasicStats stats, double tfn, double lambda)	Computes the score.
final double	DistributionLL.score(BasicStats stats, double tfn, double lambda)
final double	DistributionSPL.score(BasicStats stats, double tfn, double lambda)
protected double	IBSimilarity.score(BasicStats stats, double freq, double docLen)
protected double	IndriDirichletSimilarity.score(BasicStats stats, double freq, double docLen)
protected double	LMDirichletSimilarity.score(BasicStats stats, double freq, double docLen)
protected double	LMJelinekMercerSimilarity.score(BasicStats stats, double freq, double docLen)
protected abstract double	SimilarityBase.score(BasicStats stats, double freq, double docLen)	Scores the document doc.
abstract double	AfterEffect.scoreTimes1pTfn(BasicStats stats)	Returns the product of the after effect with 1+tfn.
final double	AfterEffectB.scoreTimes1pTfn(BasicStats stats)
final double	AfterEffectL.scoreTimes1pTfn(BasicStats stats)
protected abstract double	Axiomatic.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected double	AxiomaticF1EXP.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected double	AxiomaticF1LOG.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected double	AxiomaticF2EXP.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected double	AxiomaticF2LOG.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected double	AxiomaticF3EXP.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected double	AxiomaticF3LOG.tf(BasicStats stats, double freq, double docLen)	compute the term frequency component
protected abstract Explanation	Axiomatic.tfExplain(BasicStats stats, double freq, double docLen)	Explain the score of the term frequency component for a single document
protected Explanation	AxiomaticF1EXP.tfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF1LOG.tfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2EXP.tfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2LOG.tfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3EXP.tfExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3LOG.tfExplain(BasicStats stats, double freq, double docLen)
protected abstract double	Axiomatic.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected double	AxiomaticF1EXP.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected double	AxiomaticF1LOG.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected double	AxiomaticF2EXP.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected double	AxiomaticF2LOG.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected double	AxiomaticF3EXP.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected double	AxiomaticF3LOG.tfln(BasicStats stats, double freq, double docLen)	compute the mixed term frequency and document length component
protected abstract Explanation	Axiomatic.tflnExplain(BasicStats stats, double freq, double docLen)	Explain the score of the mixed term frequency and document length component for a single document
protected Explanation	AxiomaticF1EXP.tflnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF1LOG.tflnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2EXP.tflnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF2LOG.tflnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3EXP.tflnExplain(BasicStats stats, double freq, double docLen)
protected Explanation	AxiomaticF3LOG.tflnExplain(BasicStats stats, double freq, double docLen)
double	Normalization.NoNormalization.tfn(BasicStats stats, double tf, double len)
abstract double	Normalization.tfn(BasicStats stats, double tf, double len)	Returns the normalized term frequency.
final double	NormalizationH1.tfn(BasicStats stats, double tf, double len)
final double	NormalizationH2.tfn(BasicStats stats, double tf, double len)
double	NormalizationH3.tfn(BasicStats stats, double tf, double len)
double	NormalizationZ.tfn(BasicStats stats, double tf, double len)