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

Class RandomHyperplaneProjectionFamily

java.lang.Object

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

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

All Implemented Interfaces:

RandomProjectionFamily

@Reference(authors="M.S. Charikar",
           title="Similarity estimation techniques from rounding algorithms",
           booktitle="Proc. 34th ACM Symposium on Theory of computing, STOC\'02",
           url="https://dx.doi.org/10.1145%2F509907.509965")
public class RandomHyperplaneProjectionFamily
extends AbstractRandomProjectionFamily

Random hyperplane projection family. Reference:

M.S. Charikar
Similarity estimation techniques from rounding algorithms
Proc. 34th ACM Symposium on Theory of computing, STOC'02

Author:

Evgeniy Faerman

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RandomHyperplaneProjectionFamily.Parameterizer Parameterization class.

Nested classes/interfaces inherited from class de.lmu.ifi.dbs.elki.math.linearalgebra.randomprojections.AbstractRandomProjectionFamily

AbstractRandomProjectionFamily.MatrixProjection

Nested classes/interfaces inherited from interface de.lmu.ifi.dbs.elki.math.linearalgebra.randomprojections.RandomProjectionFamily

RandomProjectionFamily.Projection

Field Summary

Fields inherited from class de.lmu.ifi.dbs.elki.math.linearalgebra.randomprojections.AbstractRandomProjectionFamily

random

Constructor Summary

Constructors

Constructor and Description
RandomHyperplaneProjectionFamily(RandomFactory random) Constructor.

Method Summary

Modifier and Type	Method and Description
RandomProjectionFamily.Projection	generateProjection(int dim, int k) Generate a projection matrix for the given dimensionalities.

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomHyperplaneProjectionFamily

public RandomHyperplaneProjectionFamily(RandomFactory random)

Constructor.

Parameters:

random - Random number generator.

Method Detail

generateProjection

public RandomProjectionFamily.Projection generateProjection(int dim,
                                                            int k)

Description copied from interface: RandomProjectionFamily

Generate a projection matrix for the given dimensionalities.

Parameters:

dim - Input Dimensionality

k - Output Dimensionality

Returns:

Projection matrix