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

Packages that use org.apache.lucene.search.similarities
Package
Description
org.apache.lucene.index
Code to maintain and access indices.
org.apache.lucene.search
Code to search indices.
org.apache.lucene.search.similarities
This package contains the various ranking models that can be used in Lucene.

- Classes in org.apache.lucene.search.similarities used by org.apache.lucene.index
  Class
  Description
  Similarity
  Similarity defines the components of Lucene scoring.
- Classes in org.apache.lucene.search.similarities used by org.apache.lucene.search
  Class
  Description
  Similarity
  Similarity defines the components of Lucene scoring.
  Similarity.SimScorer
  Stores the weight for a query across the indexed collection.
- Classes in org.apache.lucene.search.similarities used by org.apache.lucene.search.similarities
  Class
  Description
  AfterEffect
  This class acts as the base class for the implementations of the first normalization of the informative content in the DFR framework.
  Axiomatic
  Axiomatic approaches for IR.
  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.
  Independence
  Computes the measure of divergence from independence for DFI scoring functions.
  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.BulkSimScorer
  Specialization of `Similarity.SimScorer` for bulk-computation of scores.
  Similarity.SimScorer
  Stores the weight for a query across the indexed collection.
  SimilarityBase
  A subclass of `Similarity` that provides a simplified API for its descendants.
  TFIDFSimilarity
  Implementation of `Similarity` with the Vector Space Model.