de.lmu.ifi.dbs.elki.distance.similarityfunction
Interface IndexBasedSimilarityFunction<O,D extends Distance<D>>

Type Parameters:

O - Object type

D - Distance type

All Superinterfaces:

InspectionUtilFrequentlyScanned, Parameterizable, SimilarityFunction<O,D>

All Known Implementing Classes:

AbstractIndexBasedSimilarityFunction, FractionalSharedNearestNeighborSimilarityFunction, SharedNearestNeighborSimilarityFunction

public interface IndexBasedSimilarityFunction<O,D extends Distance<D>>
extends SimilarityFunction<O,D>

Interface for preprocessor/index based similarity functions.

Nested Class Summary

static interface

IndexBasedSimilarityFunction.Instance<T,I extends Index,D extends Distance<D>> Instance interface for index/preprocessor based distance functions.

Method Summary

<T extends O> IndexBasedSimilarityFunction.Instance<T,?,D>

instantiate(Relation<T> database) Preprocess the database to get the actual distance function.

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.similarityfunction.SimilarityFunction

getDistanceFactory, getInputTypeRestriction, isSymmetric

Method Detail

instantiate

<T extends O> IndexBasedSimilarityFunction.Instance<T,?,D> instantiate(Relation<T> database)

Preprocess the database to get the actual distance function.

Specified by:

instantiate in interface SimilarityFunction<O,D extends Distance<D>>

Parameters:

database -

Returns:

Actual distance query.