Package elki.datasource.filter.transform
Class AbstractSupervisedProjectionVectorFilter<V extends NumberVector>
- java.lang.Object
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- elki.datasource.filter.transform.AbstractSupervisedProjectionVectorFilter<V>
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- Type Parameters:
V
- Vector type
- All Implemented Interfaces:
ObjectFilter
- Direct Known Subclasses:
LinearDiscriminantAnalysisFilter
public abstract class AbstractSupervisedProjectionVectorFilter<V extends NumberVector> extends java.lang.Object implements ObjectFilter
Base class for supervised projection methods. TODO: re-add sampling.- Since:
- 0.6.0
- Author:
- Angela Peng, Erich Schubert
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Field Summary
Fields Modifier and Type Field Description protected int
tdim
The dimensionality to which the data should be reduced.
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Constructor Summary
Constructors Constructor Description AbstractSupervisedProjectionVectorFilter(int projdimension)
Constructor.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected abstract double[][]
computeProjectionMatrix(java.util.List<V> vectorcolumn, java.util.List<? extends ClassLabel> classcolumn, int dim)
computes the projection matrixprotected SimpleTypeInformation<?>
convertedType(SimpleTypeInformation<?> in, NumberVector.Factory<V> factory)
Get the output type from the input type after conversion.MultipleObjectsBundle
filter(MultipleObjectsBundle objects)
Filter a set of object packages.protected abstract Logging
getLogger()
Class logger.protected <O> java.util.Map<O,it.unimi.dsi.fastutil.ints.IntList>
partition(java.util.List<? extends O> classcolumn)
Partition the bundle based on the class label.
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Method Detail
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filter
public MultipleObjectsBundle filter(MultipleObjectsBundle objects)
Description copied from interface:ObjectFilter
Filter a set of object packages.- Specified by:
filter
in interfaceObjectFilter
- Parameters:
objects
- Object to filter- Returns:
- Filtered objects
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convertedType
protected SimpleTypeInformation<?> convertedType(SimpleTypeInformation<?> in, NumberVector.Factory<V> factory)
Get the output type from the input type after conversion.- Parameters:
in
- input type restrictionfactory
- Vector factory- Returns:
- output type restriction
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getLogger
protected abstract Logging getLogger()
Class logger.- Returns:
- Logger
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computeProjectionMatrix
protected abstract double[][] computeProjectionMatrix(java.util.List<V> vectorcolumn, java.util.List<? extends ClassLabel> classcolumn, int dim)
computes the projection matrix- Parameters:
vectorcolumn
- Vectorsclasscolumn
- Class informationdim
- Dimensionality Dimensionality- Returns:
- Projection matrix
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partition
protected <O> java.util.Map<O,it.unimi.dsi.fastutil.ints.IntList> partition(java.util.List<? extends O> classcolumn)
Partition the bundle based on the class label.- Parameters:
classcolumn
-- Returns:
- Partitioned data set.
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