Class GEDEstimator
- java.lang.Object
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- elki.math.statistics.intrinsicdimensionality.GEDEstimator
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- All Implemented Interfaces:
DistanceBasedIntrinsicDimensionalityEstimator
,IntrinsicDimensionalityEstimator<java.lang.Object>
@Reference(authors="M. E. Houle, H. Kashima, M. Nett", title="Generalized expansion dimension", booktitle="12th International Conference on Data Mining Workshops (ICDMW)", url="https://doi.org/10.1109/ICDMW.2012.94", bibkey="DBLP:conf/icdm/HouleKN12") public class GEDEstimator extends java.lang.Object implements DistanceBasedIntrinsicDimensionalityEstimator
Generalized Expansion Dimension for estimating the intrinsic dimensionality.Reference:
M. E. Houle, H. Kashima, M. Nett
Generalized expansion dimension
In: 12th International Conference on Data Mining Workshops (ICDMW)- Since:
- 0.7.0
- Author:
- Jonathan von Brünken, Erich Schubert
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
GEDEstimator.Par
Parameterization class.
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Field Summary
Fields Modifier and Type Field Description (package private) double[]
ilogs
Cached logs of integers.static GEDEstimator
STATIC
Static instance.
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Constructor Summary
Constructors Constructor Description GEDEstimator()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description <A> double
estimate(A data, NumberArrayAdapter<?,? super A> adapter, int end)
Estimate from a distance list.private void
precomputeLogs(int len)
Grow the log[i] cache.
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Field Detail
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STATIC
public static final GEDEstimator STATIC
Static instance.
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ilogs
double[] ilogs
Cached logs of integers.
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Method Detail
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estimate
public <A> double estimate(A data, NumberArrayAdapter<?,? super A> adapter, int end)
Description copied from interface:DistanceBasedIntrinsicDimensionalityEstimator
Estimate from a distance list.- Specified by:
estimate
in interfaceDistanceBasedIntrinsicDimensionalityEstimator
- Type Parameters:
A
- array type- Parameters:
data
- Dataadapter
- Array adapterend
- Length- Returns:
- Estimated intrinsic dimensionality
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precomputeLogs
private void precomputeLogs(int len)
Grow the log[i] cache.- Parameters:
len
- Required size
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