de.lmu.ifi.dbs.elki.database.query.similarity

Class AbstractSimilarityQuery<O>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.similarity.AbstractSimilarityQuery<O>

Type Parameters:

O - Input object type

All Implemented Interfaces:

DatabaseQuery, SimilarityQuery<O>

Direct Known Subclasses:

AbstractDBIDSimilarityQuery, PrimitiveSimilarityQuery

public abstract class AbstractSimilarityQuery<O>
extends Object
implements SimilarityQuery<O>

A distance query serves as adapter layer for database and primitive similarity functions.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
protected Relation<? extends O>	relation The data to use for this query

Fields inherited from interface de.lmu.ifi.dbs.elki.database.query.DatabaseQuery

HINT_BULK, HINT_EXACT, HINT_HEAVY_USE, HINT_NO_CACHE, HINT_OPTIMIZED_ONLY, HINT_SINGLE

Constructor Summary

Constructors

Constructor and Description
AbstractSimilarityQuery(Relation<? extends O> relation) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Relation<? extends O>	getRelation() Access the underlying data query.
abstract double	similarity(DBIDRef id1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
abstract double	similarity(DBIDRef id1, O o2) Returns the distance between the two objects specified by their object ids.
abstract double	similarity(O o1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
abstract double	similarity(O o1, O o2) Returns the distance between the two objects specified by their object ids.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.lmu.ifi.dbs.elki.database.query.similarity.SimilarityQuery

getSimilarityFunction

Field Detail

relation

protected final Relation<? extends O> relation

The data to use for this query

Constructor Detail

AbstractSimilarityQuery

public AbstractSimilarityQuery(Relation<? extends O> relation)

Constructor.

Parameters:

relation - Relation to use.

Method Detail

similarity

public abstract double similarity(DBIDRef id1,
                DBIDRef id2)

Returns the distance between the two objects specified by their object ids.

Specified by:

similarity in interface SimilarityQuery<O>

Parameters:

id1 - first object id

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

similarity

public abstract double similarity(O o1,
                DBIDRef id2)

Returns the distance between the two objects specified by their object ids.

Specified by:

similarity in interface SimilarityQuery<O>

Parameters:

o1 - first object

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

similarity

public abstract double similarity(DBIDRef id1,
                O o2)

Returns the distance between the two objects specified by their object ids.

Specified by:

similarity in interface SimilarityQuery<O>

Parameters:

id1 - first object id

o2 - second object

Returns:

the distance between the two objects specified by their object ids

similarity

public abstract double similarity(O o1,
                O o2)

Returns the distance between the two objects specified by their object ids.

Specified by:

similarity in interface SimilarityQuery<O>

Parameters:

o1 - first object

o2 - second object

Returns:

the distance between the two objects specified by their object ids

getRelation

public Relation<? extends O> getRelation()

Description copied from interface: SimilarityQuery

Access the underlying data query.

Specified by:

getRelation in interface SimilarityQuery<O>

Returns:

data query in use