de.lmu.ifi.dbs.elki.utilities.scaling.outlier
Class HeDESNormalizationOutlierScaling

java.lang.Object
  de.lmu.ifi.dbs.elki.utilities.scaling.outlier.HeDESNormalizationOutlierScaling

All Implemented Interfaces:

InspectionUtilFrequentlyScanned, Parameterizable, OutlierScalingFunction, ScalingFunction

@Reference(authors="H. V. Nguyen, H. H. Ang, V. Gopalkrishnan",
           title="Mining Outliers with Ensemble of Heterogeneous Detectors on Random Subspaces",
           booktitle="Proc. 15th International Conference on Database Systems for Advanced Applications (DASFAA 2010)",
           url="http://dx.doi.org/10.1007/978-3-642-12026-8_29")
public class HeDESNormalizationOutlierScaling
extends Object
implements OutlierScalingFunction

Normalization used by HeDES

Field Summary

(package private) double	mean Mean
(package private) double	scaledmax Maximum after scaling
(package private) double	scaledmin Minimum after scaling
(package private) double	stddev Standard deviation

Constructor Summary

HeDESNormalizationOutlierScaling()

Method Summary

double	getMax() Get maximum resulting value.
double	getMin() Get minimum resulting value.
double	getScaled(double value) Transform a given value using the scaling function.
void	prepare(OutlierResult or) Prepare is called once for each data set, before getScaled() will be called.

Methods inherited from class java.lang.Object

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

Field Detail

mean

double mean

Mean

stddev

double stddev

Standard deviation

scaledmin

double scaledmin

Minimum after scaling

scaledmax

double scaledmax

Maximum after scaling

Constructor Detail

HeDESNormalizationOutlierScaling

public HeDESNormalizationOutlierScaling()

Method Detail

prepare

public void prepare(OutlierResult or)

Description copied from interface: OutlierScalingFunction

Prepare is called once for each data set, before getScaled() will be called. This function can be used to extract global parameters such as means, minimums or maximums from the Database, Result or Annotation.

Specified by:

prepare in interface OutlierScalingFunction

Parameters:

or - Outlier result to use

getMax

public double getMax()

Description copied from interface: ScalingFunction

Get maximum resulting value. May be Double.NaN or Double.POSITIVE_INFINITY.

Specified by:

getMax in interface ScalingFunction

Returns:

Maximum resulting value.

getMin

public double getMin()

Description copied from interface: ScalingFunction

Get minimum resulting value. May be Double.NaN or Double.NEGATIVE_INFINITY.

Specified by:

getMin in interface ScalingFunction

Returns:

Minimum resulting value.

getScaled

public double getScaled(double value)

Description copied from interface: ScalingFunction

Transform a given value using the scaling function.

Specified by:

getScaled in interface ScalingFunction

Parameters:

value - Original value

Returns:

Scaled value