Package org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree

Class PruneableClassifierTree

java.lang.Object

org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree.ClassifierTree

org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree.PruneableClassifierTree

All Implemented Interfaces:

java.io.Serializable, Drawable

public class PruneableClassifierTree
extends ClassifierTree

Class for handling a tree structure that can be pruned using a pruning set.

Version:

$Revision: 1.8 $

Author:

Eibe Frank (eibe@cs.waikato.ac.nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected int	dcIndex
static double[][]	disc
static double	errors
static int	leafID
static double[][]	leafRank
protected int	ndcIndex
static double[][]	prunedTreeDisc
static int	saDepIndex
static int	saFavIndex
static int	topLeaf
static double	total
static double	total_changes
static double[][]	unprunedTreeDisc

Fields inherited from class org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree.ClassifierTree

m_id, m_isChanged, m_isDifferent, m_isEmpty, m_isLeaf, m_localModel, m_sons, m_test, m_toSelectModel, m_train

Fields inherited from interface org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree.Drawable

BayesNet, NOT_DRAWABLE, TREE

Constructor Summary

Constructors

Constructor	Description
PruneableClassifierTree(ModelSelection toSelectLocModel, boolean pruneTree, int num, boolean cleanup, int seed)	Constructor for pruneable tree structure.

Method Summary

Modifier and Type	Method	Description
void	buildClassifier(Instances data)	Method for building a pruneable classifier tree.
void	changeLeaf()
protected void	getDiscForTree()
protected ClassifierTree	getNewTree(Instances train, Instances test)	Returns a newly created tree.
void	prune()	Prunes a tree.
void	relabelingTreeGlobally()
void	removeDisc()
static void	setDiscParam(Instances data)

Methods inherited from class org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree.ClassifierTree

assignIDs, buildTree, buildTree, classifyInstance, cleanup, color, distributionForInstance, doChangeLeafLabels, doDistributionForInstance, doRelabel, doRemoveUselessNodes, getLabel, getNewTree, graph, graphType, isLeaf, nextID, numLeaves, numNodes, pickMaxIdx, prefix, resetID, setIsDifferent, toSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

disc

public static double[][] disc

unprunedTreeDisc

public static double[][] unprunedTreeDisc

prunedTreeDisc

public static double[][] prunedTreeDisc

leafRank

public static double[][] leafRank

leafID

public static int leafID

topLeaf

public static int topLeaf

errors

public static double errors

total

public static double total

total_changes

public static double total_changes

dcIndex

protected int dcIndex

ndcIndex

protected int ndcIndex

saDepIndex

public static int saDepIndex

saFavIndex

public static int saFavIndex

Constructor Detail

PruneableClassifierTree

public PruneableClassifierTree(ModelSelection toSelectLocModel,
                               boolean pruneTree,
                               int num,
                               boolean cleanup,
                               int seed)
                        throws java.lang.Exception

Constructor for pruneable tree structure. Stores reference to associated training data at each node.

Parameters:

toSelectLocModel - selection method for local splitting model

pruneTree - true if the tree is to be pruned

num - number of subsets of equal size

Throws:

java.lang.Exception - if something goes wrong

Method Detail

buildClassifier

public void buildClassifier(Instances data)
                     throws java.lang.Exception

Method for building a pruneable classifier tree.

Overrides:

buildClassifier in class ClassifierTree

Throws:

java.lang.Exception - if tree can't be built suleafIDessfully

setDiscParam

public static void setDiscParam(Instances data)

removeDisc

public void removeDisc()

changeLeaf

public void changeLeaf()

relabelingTreeGlobally

public void relabelingTreeGlobally()

getDiscForTree

protected void getDiscForTree()

prune

public void prune()
           throws java.lang.Exception

Prunes a tree.

Throws:

java.lang.Exception - if tree can't be pruned suleafIDessfully

getNewTree

protected ClassifierTree getNewTree(Instances train,
                                    Instances test)
                             throws java.lang.Exception

Returns a newly created tree.

Overrides:

getNewTree in class ClassifierTree

Parameters:

data - and selection method for local models.

Throws:

java.lang.Exception - if something goes wrong