de.lmu.ifi.dbs.elki.distance.similarityfunction

Interface IndexBasedSimilarityFunction<O>

Type Parameters:

O - Object type

All Superinterfaces:

SimilarityFunction<O>

All Known Implementing Classes:

AbstractIndexBasedSimilarityFunction, FractionalSharedNearestNeighborSimilarityFunction, SharedNearestNeighborSimilarityFunction

public interface IndexBasedSimilarityFunction<O>
extends SimilarityFunction<O>

Interface for preprocessor/index based similarity functions.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	IndexBasedSimilarityFunction.Instance<T,I extends Index> Instance interface for index/preprocessor based distance functions.

Method Summary

Methods

Modifier and Type	Method and Description
<T extends O> IndexBasedSimilarityFunction.Instance<T,?>	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

getInputTypeRestriction, isSymmetric

Method Detail

instantiate

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

Preprocess the database to get the actual distance function.

Specified by:

instantiate in interface SimilarityFunction<O>

Parameters:

database -

Returns:

Actual distance query.