Package org.deidentifier.arx.aggregates.quality

Klasse QualityModelColumnOrientedPrecision

java.lang.Object

org.deidentifier.arx.aggregates.quality.QualityModelColumnOrientedPrecision

public class QualityModelColumnOrientedPrecision
extends Object

Implementation of the Precision measure, as proposed in:

L. Sweeney: "Achieving k-anonymity privacy protection using generalization and suppression" J Uncertain Fuzz Knowl Sys 10 (5) (2002) 571-588.

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
QualityModelColumnOrientedPrecision(WrappedBoolean interrupt, WrappedInteger progress, int totalWorkload, DataHandle input, DataHandle output, int suppressedInput, int suppressedOutput, Groupify<TupleWrapper> groupedInput, Groupify<TupleWrapper> groupedOutput, String[][][] hierarchies, QualityDomainShare[] shares, int[] indices, QualityConfiguration config)	Creates a new instance

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
protected void	checkInterrupt()	Checks whether an interruption happened.
QualityMeasureColumnOriented	evaluate()	Evaluates the utility measure
protected double[][]	getColumnsAsNumbers(DataHandle input, DataHandle output, String[][] hierarchy, int column)	Returns a columns from the input and output dataset converted to numbers
protected QualityDomainShare[]	getDomainShares()	Returns the domain shares
protected Groupify<TupleWrapper>	getGroupedInput()	Returns grouped input
protected Groupify<TupleWrapper>	getGroupedOutput()	Returns grouped output
protected String[][][]	getHierarchies()	Returns the hierarchies
protected int[]	getIndices()	Returns relevant indices
protected DataHandle	getInput()	Returns input
protected double[]	getMinMax(double[] column)	Returns minimum, maximum for the given column
protected double[]	getNumbersFromHierarchy(DataHandle handle, int column, String[][] hierarchy)	Returns a numeric representation, relying on the hierarchy
protected double[]	getNumbersFromNumericColumn(double[] inputAsNumbers, DataHandle output, int column)	Parses numbers from a numeric output column
protected double[]	getNumbersFromNumericColumn(DataHandle input, int column)	Parses numbers from a numeric input column
protected double[]	getNumbersFromNumericColumnAndHierarchy(DataHandle input, double[] inputAsNumbers, DataHandle output, int column, String[][] hierarchy)	Uses numeric input and a hierarchy to construct ranges
protected DataHandle	getOutput()	Returns output
protected double[]	getRangeFromNumericColumn(double[] inputNumbers, DataHandle output, int column)	Tries to parse numbers from output when there is a numeric input column
protected int	getSuppressedRecordsInInput()	Returns the number of records suppressed in input
protected int	getSuppressedRecordsInOutput()	Returns the number of records suppressed in output
protected String	getSuppressionString()	Returns the suppression string
protected boolean	isSuppressed(int column, String value)	Returns whether a value is suppressed
protected boolean	isSuppressed(DataHandle handle, int[] indices, int row)	We assume that an entry is suppressed, if all values are equal
protected boolean	isSuppressed(DataHandle handle, int row, int column)	Returns whether a value is suppressed
protected double	log2(double d)	Log base-2
protected void	setStepPerformed()	One step performed
protected void	setSteps(int steps)	Total number of steps
protected void	setStepsDone()	All steps performed

Von Klasse geerbte Methoden java.lang.Object

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

Konstruktordetails

QualityModelColumnOrientedPrecision

public QualityModelColumnOrientedPrecision(WrappedBoolean interrupt,
 WrappedInteger progress,
 int totalWorkload,
 DataHandle input,
 DataHandle output,
 int suppressedInput,
 int suppressedOutput,
 Groupify<TupleWrapper> groupedInput,
 Groupify<TupleWrapper> groupedOutput,
 String[][][] hierarchies,
 QualityDomainShare[] shares,
 int[] indices,
 QualityConfiguration config)

Creates a new instance

Parameter:

interrupt -

progress -

totalWorkload -

input -

output -

suppressedInput -

suppressedOutput -

groupedInput -

groupedOutput -

hierarchies -

shares -

indices -

config -

Methodendetails

evaluate

public QualityMeasureColumnOriented evaluate()

Evaluates the utility measure

Gibt zurück:

checkInterrupt

protected void checkInterrupt()

Checks whether an interruption happened.

getColumnsAsNumbers

protected double[][] getColumnsAsNumbers(DataHandle input,
 DataHandle output,
 String[][] hierarchy,
 int column)

Returns a columns from the input and output dataset converted to numbers

Parameter:

input -

output -

hierarchy -

column -

Gibt zurück:

getDomainShares

protected QualityDomainShare[] getDomainShares()

Returns the domain shares

getGroupedInput

protected Groupify<TupleWrapper> getGroupedInput()

Returns grouped input

getGroupedOutput

protected Groupify<TupleWrapper> getGroupedOutput()

Returns grouped output

getHierarchies

protected String[][][] getHierarchies()

Returns the hierarchies

getIndices

protected int[] getIndices()

Returns relevant indices

getInput

protected DataHandle getInput()

Returns input

Gibt zurück:

getMinMax

protected double[] getMinMax(double[] column)

Returns minimum, maximum for the given column

Parameter:

column -

Gibt zurück:

getNumbersFromHierarchy

protected double[] getNumbersFromHierarchy(DataHandle handle,
 int column,
 String[][] hierarchy)

Returns a numeric representation, relying on the hierarchy

Parameter:

handle -

column -

hierarchy -

Gibt zurück:

getNumbersFromNumericColumn

protected double[] getNumbersFromNumericColumn(DataHandle input,
 int column)

Parses numbers from a numeric input column

Parameter:

input -

column -

Gibt zurück:

getNumbersFromNumericColumn

protected double[] getNumbersFromNumericColumn(double[] inputAsNumbers,
 DataHandle output,
 int column)

Parses numbers from a numeric output column

Parameter:

inputAsNumbers -

output -

column -

Gibt zurück:

getNumbersFromNumericColumnAndHierarchy

protected double[] getNumbersFromNumericColumnAndHierarchy(DataHandle input,
 double[] inputAsNumbers,
 DataHandle output,
 int column,
 String[][] hierarchy)

Uses numeric input and a hierarchy to construct ranges

Parameter:

input -

inputAsNumbers -

output -

column -

hierarchy -

Gibt zurück:

getOutput

protected DataHandle getOutput()

Returns output

Gibt zurück:

getRangeFromNumericColumn

protected double[] getRangeFromNumericColumn(double[] inputNumbers,
 DataHandle output,
 int column)

Tries to parse numbers from output when there is a numeric input column

Parameter:

inputNumbers -

output -

column -

Gibt zurück:

getSuppressedRecordsInInput

protected int getSuppressedRecordsInInput()

Returns the number of records suppressed in input

Gibt zurück:

getSuppressedRecordsInOutput

protected int getSuppressedRecordsInOutput()

Returns the number of records suppressed in output

Gibt zurück:

getSuppressionString

protected String getSuppressionString()

Returns the suppression string

Gibt zurück:

isSuppressed

protected boolean isSuppressed(DataHandle handle,
 int row,
 int column)

Returns whether a value is suppressed

Parameter:

handle -

row -

column -

Gibt zurück:

isSuppressed

protected boolean isSuppressed(DataHandle handle,
 int[] indices,
 int row)

We assume that an entry is suppressed, if all values are equal

Parameter:

entry -

Gibt zurück:

isSuppressed

protected boolean isSuppressed(int column,
 String value)

Returns whether a value is suppressed

Parameter:

column -

value -

Gibt zurück:

log2

protected double log2(double d)

Log base-2

Parameter:

d -

Gibt zurück:

setStepPerformed

protected void setStepPerformed()

One step performed

setSteps

protected void setSteps(int steps)

Total number of steps

Parameter:

steps -

setStepsDone

protected void setStepsDone()

All steps performed