de.lmu.ifi.dbs.elki.math.linearalgebra.randomprojections

Class RandomSubsetProjectionFamily.SubsetProjection

java.lang.Object

de.lmu.ifi.dbs.elki.math.linearalgebra.randomprojections.RandomSubsetProjectionFamily.SubsetProjection

All Implemented Interfaces:

RandomProjectionFamily.Projection

Enclosing class:

RandomSubsetProjectionFamily

public static class RandomSubsetProjectionFamily.SubsetProjection
extends Object
implements RandomProjectionFamily.Projection

Random subset projection.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
private int[]	dims Input dimensions.

Constructor Summary

Constructors

Constructor and Description
RandomSubsetProjectionFamily.SubsetProjection(int[] dims) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
int	getOutputDimensionality() Get the output dimensionality.
double[]	project(NumberVector in) Project a single vector.
double[]	project(NumberVector in, double[] buffer) Project a single vector, into the given buffer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

dims

private int[] dims

Input dimensions.

Constructor Detail

RandomSubsetProjectionFamily.SubsetProjection

public RandomSubsetProjectionFamily.SubsetProjection(int[] dims)

Constructor.

Parameters:

dims - Data permutation.

Method Detail

project

public double[] project(NumberVector in)

Description copied from interface: RandomProjectionFamily.Projection

Project a single vector.

Specified by:

project in interface RandomProjectionFamily.Projection

Parameters:

in - Input vector

Returns:

Projected vector

project

public double[] project(NumberVector in,
               double[] buffer)

Description copied from interface: RandomProjectionFamily.Projection

Project a single vector, into the given buffer.

Specified by:

project in interface RandomProjectionFamily.Projection

Parameters:

in - Input vector

buffer - Output buffer

Returns:

buffer

getOutputDimensionality

public int getOutputDimensionality()

Description copied from interface: RandomProjectionFamily.Projection

Get the output dimensionality.

Specified by:

getOutputDimensionality in interface RandomProjectionFamily.Projection

Returns:

Output dimensionality