IndexBasedSimilarity (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

Type Parameters:

O - Object type

All Superinterfaces:

Similarity<O>

All Known Implementing Classes:

AbstractIndexBasedSimilarity, FractionalSharedNearestNeighborSimilarity, SharedNearestNeighborSimilarity
```
public interface IndexBasedSimilarity<O>
extends Similarity<O>
```
Interface for preprocessor/index based similarity functions.

Since:

0.4.0

Author:

Erich Schubert

Nested Class Summary

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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`<T extends O> IndexBasedSimilarity.Instance<T,?>`	`instantiate(Relation<T> database)`	Preprocess the database to get the actual distance function.

Methods inherited from interface elki.similarity.Similarity
getInputTypeRestriction, isSymmetric

- Method Detail
  - instantiate
```
<T extends O> IndexBasedSimilarity.Instance<T,?> instantiate(Relation<T> database)
```
    Preprocess the database to get the actual distance function.
    
    Specified by:
    
    instantiate in interface Similarity<O>
    
    Parameters:
    
    database -
    
    Returns:
    
    Actual distance query.