# Uses of Interface
org.apache.sysds.runtime.matrix.data.sketch.MatrixSketch

Packages that use MatrixSketch
Package
Description
org.apache.sysds.runtime.matrix.data.sketch
org.apache.sysds.runtime.matrix.data.sketch.countdistinct
org.apache.sysds.runtime.matrix.data.sketch.countdistinctapprox

## Uses of MatrixSketch in org.apache.sysds.runtime.matrix.data.sketch

Classes in org.apache.sysds.runtime.matrix.data.sketch that implement MatrixSketch
Modifier and Type
Class
Description
`class`
`CountDistinctSketch`
Methods in org.apache.sysds.runtime.matrix.data.sketch that return MatrixSketch
Modifier and Type
Method
Description
`static MatrixSketch`
MatrixSketchFactory.`get(Operator op)`

## Uses of MatrixSketch in org.apache.sysds.runtime.matrix.data.sketch.countdistinct

Classes in org.apache.sysds.runtime.matrix.data.sketch.countdistinct that implement MatrixSketch
Modifier and Type
Class
Description
`class`
`CountDistinctFunctionSketch`

## Uses of MatrixSketch in org.apache.sysds.runtime.matrix.data.sketch.countdistinctapprox

Classes in org.apache.sysds.runtime.matrix.data.sketch.countdistinctapprox that implement MatrixSketch
Modifier and Type
Class
Description
`class`
`KMVSketch`
KMV synopsis(for k minimum values) Distinct-Value Estimation Kevin S.