Package elki.clustering.hierarchical.birch

Class CFTree.Factory

java.lang.Object

elki.clustering.hierarchical.birch.CFTree.Factory

Enclosing class:

CFTree

public static class CFTree.Factory
extends java.lang.Object

CF-Tree Factory.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CFTree.Factory.Par	Parameterization class for CFTrees.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) BIRCHAbsorptionCriterion	absorption	Criterion for absorbing points.
(package private) int	branchingFactor	Maximum branching factor of CFTree.
(package private) BIRCHDistance	distance	BIRCH distance function to use
(package private) double	maxleaves	Maximum number of leaves (absolute or relative)
(package private) double	threshold	Cluster merge threshold.

Constructor Summary

Constructors

Constructor	Description
Factory(BIRCHDistance distance, BIRCHAbsorptionCriterion absorption, double threshold, int branchingFactor, double maxleaves)	Constructor.

Method Summary

Modifier and Type	Method	Description
CFTree	newTree(DBIDs ids, Relation<? extends NumberVector> relation)	Make a new tree.

Methods inherited from class java.lang.Object

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

Field Detail

distance

BIRCHDistance distance

BIRCH distance function to use

absorption

BIRCHAbsorptionCriterion absorption

Criterion for absorbing points.

threshold

double threshold

Cluster merge threshold.

branchingFactor

int branchingFactor

Maximum branching factor of CFTree.

maxleaves

double maxleaves

Maximum number of leaves (absolute or relative)

Constructor Detail

Factory

public Factory(BIRCHDistance distance,
               BIRCHAbsorptionCriterion absorption,
               double threshold,
               int branchingFactor,
               double maxleaves)

Constructor.

Parameters:

distance - Distance to use

absorption - Absorption criterion (diameter, distance).

threshold - Distance threshold

branchingFactor - Maximum branching factor.

maxleaves - Maximum number of leaves

Method Detail

newTree

public CFTree newTree(DBIDs ids,
                      Relation<? extends NumberVector> relation)

Make a new tree.

Parameters:

ids - DBIDs to insert

relation - Data relation

Returns:

New tree