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

Class EpsilonNeighborPredicate.Instance

java.lang.Object

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

All Implemented Interfaces:

NeighborPredicate.Instance<DoubleDBIDList>

Enclosing class:

EpsilonNeighborPredicate<O>

public static class EpsilonNeighborPredicate.Instance
extends Object
implements NeighborPredicate.Instance<DoubleDBIDList>

Instance for a particular data set.

Author:

Erich Schubert

Field Summary

Fields

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	addDBIDs(ModifiableDBIDs ids, DoubleDBIDList neighbors) Add the neighbors to a DBID set
DBIDs	getIDs() Get the IDs the predicate is defined for.
DoubleDBIDList	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

double epsilon

Range to query with

rq

RangeQuery<?> rq

Range query to use on the database.

ids

DBIDs ids

DBIDs to process

Constructor Detail

Instance

public Instance(double epsilon,
                RangeQuery<?> 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<DoubleDBIDList>

Returns:

Database ids

getNeighbors

public DoubleDBIDList 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<DoubleDBIDList>

Parameters:

reference - Reference object

Returns:

Neighborhood

addDBIDs

public void addDBIDs(ModifiableDBIDs ids,
                     DoubleDBIDList neighbors)

Description copied from interface: NeighborPredicate.Instance

Add the neighbors to a DBID set

Specified by:

addDBIDs in interface NeighborPredicate.Instance<DoubleDBIDList>

Parameters:

ids - ID set

neighbors - Neighbors to add