public class PCABasedCorrelationDistanceFunction extends AbstractIndexBasedDistanceFunction<NumberVector<?>,FilteredLocalPCAIndex<NumberVector<?>>,PCACorrelationDistance> implements FilteredLocalPCABasedDistanceFunction<NumberVector<?>,FilteredLocalPCAIndex<NumberVector<?>>,PCACorrelationDistance>
| Modifier and Type | Class and Description |
|---|---|
static class |
PCABasedCorrelationDistanceFunction.Instance<V extends NumberVector<?>>
The actual instance bound to a particular database.
|
static class |
PCABasedCorrelationDistanceFunction.Parameterizer
Parameterization class.
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| Modifier and Type | Field and Description |
|---|---|
private double |
delta
Holds the value of
DELTA_ID. |
static OptionID |
DELTA_ID
Parameter to specify the threshold of a distance between a vector q and a
given space that indicates that q adds a new dimension to the space, must
be a double equal to or greater than 0.
|
indexFactoryINDEX_ID| Constructor and Description |
|---|
PCABasedCorrelationDistanceFunction(IndexFactory<NumberVector<?>,FilteredLocalPCAIndex<NumberVector<?>>> indexFactory,
double delta)
Constructor
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| Modifier and Type | Method and Description |
|---|---|
boolean |
equals(Object obj) |
PCACorrelationDistance |
getDistanceFactory()
Method to get the distance functions factory.
|
<T extends NumberVector<?>> |
instantiate(Relation<T> database)
Instantiate with a database to get the actual distance query.
|
getInputTypeRestriction, isMetric, isSymmetricclone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetInputTypeRestriction, isMetric, isSymmetricpublic static final OptionID DELTA_ID
Default value: 0.25
Key: -pcabasedcorrelationdf.delta
private double delta
DELTA_ID.public PCABasedCorrelationDistanceFunction(IndexFactory<NumberVector<?>,FilteredLocalPCAIndex<NumberVector<?>>> indexFactory, double delta)
indexFactory - index factorydelta - Delta parameterpublic PCACorrelationDistance getDistanceFactory()
DistanceFunctiongetDistanceFactory in interface DistanceFunction<NumberVector<?>,PCACorrelationDistance>getDistanceFactory in class AbstractDatabaseDistanceFunction<NumberVector<?>,PCACorrelationDistance>public <T extends NumberVector<?>> PCABasedCorrelationDistanceFunction.Instance<T> instantiate(Relation<T> database)
FilteredLocalPCABasedDistanceFunctioninstantiate in interface DistanceFunction<NumberVector<?>,PCACorrelationDistance>instantiate in interface FilteredLocalPCABasedDistanceFunction<NumberVector<?>,FilteredLocalPCAIndex<NumberVector<?>>,PCACorrelationDistance>database - The representation to use