# Uses of Class
org.apache.lucene.queries.function.valuesource.VectorSimilarityFunction

Packages that use VectorSimilarityFunction
Package
Description
org.apache.lucene.queries.function.valuesource
A variety of functions to use with FunctionQuery.

- ## Uses of VectorSimilarityFunction in org.apache.lucene.queries.function.valuesource

  Subclasses of VectorSimilarityFunction in org.apache.lucene.queries.function.valuesource
  Modifier and Type
  Class
  Description
  `class`
  `ByteVectorSimilarityFunction`
  `ByteVectorSimilarityFunction` returns a similarity function between two knn vectors with byte elements.
  `class`
  `FloatVectorSimilarityFunction`
  `FloatVectorSimilarityFunction` returns a similarity function between two knn vectors with float elements.