Uses of Class
org.apache.lucene.search.CollectionStatistics
Package
Description
Code to search indices.
This package contains the various ranking models that can be used in Lucene.
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Uses of CollectionStatistics in org.apache.lucene.search
Modifier and TypeMethodDescriptionIndexSearcher.collectionStatistics
(String field) ReturnsCollectionStatistics
for a field, ornull
if the field does not exist (has no indexed terms) -
Uses of CollectionStatistics in org.apache.lucene.search.similarities
Modifier and TypeMethodDescriptionprotected float
BM25Similarity.avgFieldLength
(CollectionStatistics collectionStats) The default implementation computes the average assumTotalTermFreq / docCount
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 inBasicStats
instats
.BM25Similarity.idfExplain
(CollectionStatistics collectionStats, TermStatistics termStats) Computes a score factor for a simple term and returns an explanation for that score factor.BM25Similarity.idfExplain
(CollectionStatistics collectionStats, TermStatistics[] termStats) Computes a score factor for a phrase.ClassicSimilarity.idfExplain
(CollectionStatistics collectionStats, TermStatistics termStats) TFIDFSimilarity.idfExplain
(CollectionStatistics collectionStats, TermStatistics termStats) Computes a score factor for a simple term and returns an explanation for that score factor.TFIDFSimilarity.idfExplain
(CollectionStatistics collectionStats, TermStatistics[] termStats) Computes a score factor for a phrase.final Similarity.SimScorer
BM25Similarity.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats) BooleanSimilarity.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats) MultiSimilarity.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats) final Similarity.SimScorer
PerFieldSimilarityWrapper.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats) abstract Similarity.SimScorer
Similarity.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats) Compute any collection-level weight (e.g.final Similarity.SimScorer
SimilarityBase.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats) final Similarity.SimScorer
TFIDFSimilarity.scorer
(float boost, CollectionStatistics collectionStats, TermStatistics... termStats)