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

Interface RandomProjectionFamily.Projection

All Known Implementing Classes:

AbstractRandomProjectionFamily.MatrixProjection, RandomSubsetProjectionFamily.SubsetProjection, SimplifiedRandomHyperplaneProjectionFamily.SignedProjection

Enclosing interface:

RandomProjectionFamily

public static interface RandomProjectionFamily.Projection

Interface for projection instances (not thread safe). To enable the use of internal buffers for faster multiplication, this code is currently not thread safe.

Author:

Erich Schubert

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.

Method Detail

project

double[] project(NumberVector in)

Project a single vector.

Parameters:

in - Input vector

Returns:

Projected vector

project

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

Project a single vector, into the given buffer.

Parameters:

in - Input vector

buffer - Output buffer

Returns:

buffer

getOutputDimensionality

int getOutputDimensionality()

Get the output dimensionality.

Returns:

Output dimensionality