de.lmu.ifi.dbs.elki.algorithm.clustering.gdbscan

Class EpsilonNeighborPredicate.Instance<D extends Distance<D>>

java.lang.Object

de.lmu.ifi.dbs.elki.algorithm.clustering.gdbscan.EpsilonNeighborPredicate.Instance<D>

All Implemented Interfaces:

NeighborPredicate.Instance<DistanceDBIDList<D>>

Enclosing class:

EpsilonNeighborPredicate<O,D extends Distance<D>>

public static class EpsilonNeighborPredicate.Instance<D extends Distance<D>>
extends Object
implements NeighborPredicate.Instance<DistanceDBIDList<D>>

Instance for a particular data set.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) D	epsilon Range to query with
(package private) DBIDs	ids DBIDs to process
(package private) RangeQuery<?,D>	rq Range query to use on the database.

Constructor Summary

Constructors

Constructor and Description
EpsilonNeighborPredicate.Instance(D epsilon, RangeQuery<?,D> rq, DBIDs ids) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addDBIDs(ModifiableDBIDs ids, DistanceDBIDList<D> neighbors) Add the neighbors to a DBID set
DBIDs	getIDs() Get the IDs the predicate is defined for.
DistanceDBIDList<D>	getNeighbors(DBIDRef reference) Get the neighbors of a reference object for DBSCAN.

Methods inherited from class java.lang.Object

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

Field Detail

epsilon

D extends Distance<D> epsilon

Range to query with

rq

RangeQuery<?,D extends Distance<D>> rq

Range query to use on the database.

ids

DBIDs ids

DBIDs to process

Constructor Detail

EpsilonNeighborPredicate.Instance

public EpsilonNeighborPredicate.Instance(D epsilon,
                                 RangeQuery<?,D> rq,
                                 DBIDs ids)

Constructor.

Parameters:

epsilon - Epsilon

rq - Range query to use

ids - DBIDs to process

Method Detail

getIDs

public DBIDs getIDs()

Description copied from interface: NeighborPredicate.Instance

Get the IDs the predicate is defined for.

Specified by:

getIDs in interface NeighborPredicate.Instance<DistanceDBIDList<D extends Distance<D>>>

Returns:

Database ids

getNeighbors

public DistanceDBIDList<D> getNeighbors(DBIDRef reference)

Description copied from interface: NeighborPredicate.Instance

Get the neighbors of a reference object for DBSCAN.

Specified by:

getNeighbors in interface NeighborPredicate.Instance<DistanceDBIDList<D extends Distance<D>>>

Parameters:

reference - Reference object

Returns:

Neighborhood

addDBIDs

public void addDBIDs(ModifiableDBIDs ids,
            DistanceDBIDList<D> neighbors)

Description copied from interface: NeighborPredicate.Instance

Add the neighbors to a DBID set

Specified by:

addDBIDs in interface NeighborPredicate.Instance<DistanceDBIDList<D extends Distance<D>>>

Parameters:

ids - ID set

neighbors - Neighbors to add