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## Uses of Package
org.apache.lucene.search.similarities

Packages that use org.apache.lucene.search.similarities
org.apache.lucene.index | Code to maintain and access indices.
org.apache.lucene.search | Code to search indices.
org.apache.lucene.search.payloads | The payloads package provides Query mechanisms for finding and using payloads.
org.apache.lucene.search.similarities | This package contains the various ranking models that can be used in Lucene.
org.apache.lucene.search.spans | The calculus of spans.

Classes in org.apache.lucene.search.similarities used by org.apache.lucene.index
Similarity Similarity defines the components of Lucene scoring.

Classes in org.apache.lucene.search.similarities used by org.apache.lucene.search
Similarity Similarity defines the components of Lucene scoring.

Classes in org.apache.lucene.search.similarities used by org.apache.lucene.search.payloads
Similarity Similarity defines the components of Lucene scoring.
Similarity.SloppySimScorer API for scoring "sloppy" queries such as `SpanQuery` and sloppy `PhraseQuery`.

Classes in org.apache.lucene.search.similarities used by org.apache.lucene.search.similarities
AfterEffect This class acts as the base class for the implementations of the first normalization of the informative content in the DFR framework.
BasicModel This class acts as the base class for the specific basic model implementations in the DFR framework.
BasicStats Stores all statistics commonly used ranking methods.
Distribution The probabilistic distribution used to model term occurrence in information-based models.
Lambda The lambda (λw) parameter in information-based models.
LMSimilarity Abstract superclass for language modeling Similarities.
LMSimilarity.CollectionModel A strategy for computing the collection language model.
Normalization This class acts as the base class for the implementations of the term frequency normalization methods in the DFR framework.
Similarity Similarity defines the components of Lucene scoring.
Similarity.ExactSimScorer API for scoring exact queries such as `TermQuery` and exact `PhraseQuery`.
Similarity.SimWeight Stores the weight for a query across the indexed collection.
Similarity.SloppySimScorer API for scoring "sloppy" queries such as `SpanQuery` and sloppy `PhraseQuery`.
SimilarityBase A subclass of `Similarity` that provides a simplified API for its descendants.
TFIDFSimilarity Implementation of `Similarity` with the Vector Space Model.

Classes in org.apache.lucene.search.similarities used by org.apache.lucene.search.spans
Similarity Similarity defines the components of Lucene scoring.
Similarity.SimWeight Stores the weight for a query across the indexed collection.
Similarity.SloppySimScorer API for scoring "sloppy" queries such as `SpanQuery` and sloppy `PhraseQuery`.

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