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java.lang.Object de.lmu.ifi.dbs.elki.algorithm.AbstractAlgorithm<OutlierResult> de.lmu.ifi.dbs.elki.algorithm.outlier.GaussianModel<V>
V
- Vector type@Title(value="Gaussian Model Outlier Detection") @Description(value="Fit a multivariate gaussian model onto the data, and use the PDF to compute an outlier score.") public class GaussianModel<V extends NumberVector<V,?>>
Outlier have smallest GMOD_PROB: the outlier scores is the probability density of the assumed distribution.
Nested Class Summary | |
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static class |
GaussianModel.Parameterizer<V extends NumberVector<V,?>>
Parameterization class. |
Field Summary | |
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private boolean |
invert
Invert the result |
static OptionID |
INVERT_ID
OptionID for inversion flag. |
private static Logging |
logger
The logger for this class. |
private static double |
SINGULARITY_CHEAT
Small value to increment diagonally of a matrix in order to avoid singularity before building the inverse. |
Constructor Summary | |
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GaussianModel(boolean invert)
Constructor with actual parameters. |
Method Summary | |
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TypeInformation[] |
getInputTypeRestriction()
Get the input type restriction used for negotiating the data query. |
protected Logging |
getLogger()
Get the (STATIC) logger for this class. |
OutlierResult |
run(Relation<V> relation)
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Methods inherited from class de.lmu.ifi.dbs.elki.algorithm.AbstractAlgorithm |
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makeParameterDistanceFunction, run |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface de.lmu.ifi.dbs.elki.algorithm.outlier.OutlierAlgorithm |
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run |
Field Detail |
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private static final Logging logger
public static final OptionID INVERT_ID
private static final double SINGULARITY_CHEAT
private boolean invert
Constructor Detail |
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public GaussianModel(boolean invert)
invert
- inversion flag.Method Detail |
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public OutlierResult run(Relation<V> relation) throws IllegalStateException
IllegalStateException
public TypeInformation[] getInputTypeRestriction()
AbstractAlgorithm
getInputTypeRestriction
in interface Algorithm
getInputTypeRestriction
in class AbstractAlgorithm<OutlierResult>
protected Logging getLogger()
AbstractAlgorithm
getLogger
in class AbstractAlgorithm<OutlierResult>
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