Package elki.utilities.scaling.outlier
Class TopKOutlierScaling
- java.lang.Object
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- elki.utilities.scaling.outlier.TopKOutlierScaling
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- All Implemented Interfaces:
OutlierScaling
,ScalingFunction
public class TopKOutlierScaling extends java.lang.Object implements OutlierScaling
Outlier scaling function that only keeps the top k outliers.- Since:
- 0.3
- Author:
- Erich Schubert
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
TopKOutlierScaling.Par
Parameterization class.
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Constructor Summary
Constructors Constructor Description TopKOutlierScaling(int k, boolean binary)
Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
getMax()
Get maximum resulting value.double
getMin()
Get minimum resulting value.double
getScaled(double value)
Transform a given value using the scaling function.<A> void
prepare(A array, NumberArrayAdapter<?,A> adapter)
Prepare is called once for each data set, before getScaled() will be called.void
prepare(OutlierResult or)
Prepare is called once for each data set, before getScaled() will be called.
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Method Detail
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prepare
public void prepare(OutlierResult or)
Description copied from interface:OutlierScaling
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 outlier scores.- Specified by:
prepare
in interfaceOutlierScaling
- Parameters:
or
- Outlier result to use
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prepare
public <A> void prepare(A array, NumberArrayAdapter<?,A> adapter)
Description copied from interface:OutlierScaling
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 score array. The method using a fullOutlierResult
is preferred, as it will allow access to the metadata.- Specified by:
prepare
in interfaceOutlierScaling
- Parameters:
array
- Data to processadapter
- Array adapter
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getMax
public double getMax()
Description copied from interface:ScalingFunction
Get maximum resulting value. May beDouble.NaN
orDouble.POSITIVE_INFINITY
.- Specified by:
getMax
in interfaceScalingFunction
- Returns:
- Maximum resulting value.
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getMin
public double getMin()
Description copied from interface:ScalingFunction
Get minimum resulting value. May beDouble.NaN
orDouble.NEGATIVE_INFINITY
.- Specified by:
getMin
in interfaceScalingFunction
- Returns:
- Minimum resulting value.
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getScaled
public double getScaled(double value)
Description copied from interface:ScalingFunction
Transform a given value using the scaling function.- Specified by:
getScaled
in interfaceScalingFunction
- Parameters:
value
- Original value- Returns:
- Scaled value
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