de.lmu.ifi.dbs.elki.datasource.filter
Class AbstractNormalization<O>

java.lang.Object
  de.lmu.ifi.dbs.elki.datasource.filter.AbstractConversionFilter<O,O>
      de.lmu.ifi.dbs.elki.datasource.filter.AbstractNormalization<O>

Type Parameters:

O - Object type processed

All Implemented Interfaces:

Normalization<O>, ObjectFilter, InspectionUtilFrequentlyScanned, Parameterizable

Direct Known Subclasses:

AttributeWiseErfNormalization, AttributeWiseMinMaxNormalization, AttributeWiseVarianceNormalization, InverseDocumentFrequencyNormalization

public abstract class AbstractNormalization<O>
extends AbstractConversionFilter<O,O>
implements Normalization<O>

Abstract super class for all normalizations.

Constructor Summary

protected

AbstractNormalization() Initializes the option handler and the parameter map.

Method Summary

protected SimpleTypeInformation<? super O>	convertedType(SimpleTypeInformation<O> in) Get the output type from the input type after conversion.
MultipleObjectsBundle	normalizeObjects(MultipleObjectsBundle objects) Performs a normalization on a database object bundle.
String	toString()
LinearEquationSystem	transform(LinearEquationSystem linearEquationSystem) Transforms a linear equation system describing linear dependencies derived on the normalized space into a linear equation system describing linear dependencies quantitatively adapted to the original space.

Methods inherited from class de.lmu.ifi.dbs.elki.datasource.filter.AbstractConversionFilter

filter, filterSingleObject, getInputTypeRestriction, prepareComplete, prepareProcessInstance, prepareStart

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.datasource.filter.Normalization

restore

Methods inherited from interface de.lmu.ifi.dbs.elki.datasource.filter.ObjectFilter

filter

Constructor Detail

AbstractNormalization

protected AbstractNormalization()

Initializes the option handler and the parameter map.

Method Detail

convertedType

protected SimpleTypeInformation<? super O> convertedType(SimpleTypeInformation<O> in)

Description copied from class: AbstractConversionFilter

Get the output type from the input type after conversion.

Specified by:

convertedType in class AbstractConversionFilter<O,O>

Parameters:

in - input type restriction

Returns:

output type restriction

normalizeObjects

public final MultipleObjectsBundle normalizeObjects(MultipleObjectsBundle objects)

Description copied from interface: Normalization

Performs a normalization on a database object bundle.

Specified by:

normalizeObjects in interface Normalization<O>

Parameters:

objects - the database objects package

Returns:

modified object bundle

transform

public LinearEquationSystem transform(LinearEquationSystem linearEquationSystem)

Description copied from interface: Normalization

Transforms a linear equation system describing linear dependencies derived on the normalized space into a linear equation system describing linear dependencies quantitatively adapted to the original space.

Specified by:

transform in interface Normalization<O>

Parameters:

linearEquationSystem - the linear equation system to be transformed

Returns:

a linear equation system describing linear dependencies derived on the normalized space transformed into a linear equation system describing linear dependencies quantitatively adapted to the original space

toString

public String toString()

Overrides:

toString in class Object