# Uses of Interface
org.apache.lucene.search.similarities.LMSimilarity.CollectionModel

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

## Uses of LMSimilarity.CollectionModel in org.apache.lucene.search.similarities

Classes in org.apache.lucene.search.similarities that implement LMSimilarity.CollectionModel
Modifier and Type
Class
Description
`static class`
`IndriDirichletSimilarity.IndriCollectionModel`
Models `p(w|C)` as the number of occurrences of the term in the collection, divided by the total number of tokens `+ 1`.
`static class`
`LMSimilarity.DefaultCollectionModel`
Models `p(w|C)` as the number of occurrences of the term in the collection, divided by the total number of tokens `+ 1`.
Fields in org.apache.lucene.search.similarities declared as LMSimilarity.CollectionModel
Modifier and Type
Field
Description
`protected final LMSimilarity.CollectionModel`
LMSimilarity.`collectionModel`
The collection model.
Constructors in org.apache.lucene.search.similarities with parameters of type LMSimilarity.CollectionModel
Modifier
Constructor
Description
``
`IndriDirichletSimilarity(LMSimilarity.CollectionModel collectionModel)`
Instantiates the similarity with the default μ value of 2000.
``
`IndriDirichletSimilarity(LMSimilarity.CollectionModel collectionModel, boolean discountOverlaps, float mu)`
Instantiates the similarity with the provided parameters.
``
`IndriDirichletSimilarity(LMSimilarity.CollectionModel collectionModel, float mu)`
Instantiates the similarity with the provided μ parameter.
``
`LMDirichletSimilarity(LMSimilarity.CollectionModel collectionModel)`
Instantiates the similarity with the default μ value of 2000.
``
`LMDirichletSimilarity(LMSimilarity.CollectionModel collectionModel, boolean discountOverlaps, float mu)`
Instantiates the similarity with the provided parameters.
``
`LMDirichletSimilarity(LMSimilarity.CollectionModel collectionModel, float mu)`
Instantiates the similarity with the provided μ parameter.
``
`LMJelinekMercerSimilarity(LMSimilarity.CollectionModel collectionModel, boolean discountOverlaps, float lambda)`
Instantiates with the specified collectionModel and parameters.
``
`LMJelinekMercerSimilarity(LMSimilarity.CollectionModel collectionModel, float lambda)`
Instantiates with the specified collectionModel and λ parameter.
``
`LMSimilarity(LMSimilarity.CollectionModel collectionModel)`
Creates a new instance with the specified collection language model.
``
`LMSimilarity(LMSimilarity.CollectionModel collectionModel, boolean discountOverlaps)`
Creates a new instance with the specified collection language model and discountOverlaps.