netkit.classifiers.relational
Class MetaMultiplicative

java.lang.Object
  netkit.classifiers.ClassifierImp
      netkit.classifiers.relational.NetworkClassifierImp
          netkit.classifiers.relational.NetworkMetaClassifier
              netkit.classifiers.relational.MetaMultiplicative

All Implemented Interfaces:

Classifier, NetworkClassifier, Configurable

public final class MetaMultiplicative
extends NetworkMetaClassifier

a classifier that multiplies the predictions of one or more classifiers and returns a normalized distribution as its own estimate. See the superclass for configuration details.

Author:

Sofus A. Macskassy (sofmac@gmail.com)

Nested Class Summary

Nested classes/interfaces inherited from class netkit.classifiers.relational.NetworkClassifierImp

NetworkClassifierImp.Aggregation

Field Summary

Fields inherited from class netkit.classifiers.relational.NetworkMetaClassifier

lclassifiers, rclassifiers

Fields inherited from class netkit.classifiers.relational.NetworkClassifierImp

aggFactory, aggregation, aggregators, aggTypes, dynamicAggregators, prior

Fields inherited from class netkit.classifiers.ClassifierImp

attribute, classPrior, clsIdx, graph, keyIndex, logger, nodeType, right, useIntrinsic, vectorClsIdx

Constructor Summary

MetaMultiplicative()

Method Summary

protected boolean	doEstimate(Node node, double[] result) Get the estimates from each of the underlying classifiers, multiply their respective predictions together and return a normalized distribution.
java.lang.String	getDescription()
java.lang.String	getName()
java.lang.String	getShortName()
void	induceModel(Graph graph, DataSplit split) Induce the model.
java.lang.String	toString()

Methods inherited from class netkit.classifiers.relational.NetworkMetaClassifier

configure, getClassifierNames, getDefaultConfiguration

Methods inherited from class netkit.classifiers.relational.NetworkClassifierImp

classify, estimate, estimate, estimate, estimate, generateAggregators, getAttributeNames, includeClassAttribute, initializeRun, makeVector

Methods inherited from class netkit.classifiers.ClassifierImp

addListener, classify, classify, clearListeners, estimate, estimate, getLogger, getNofifyListeners, notifyListeners, notifyListeners, removeListener, reset, setNofityListeners

Methods inherited from class java.lang.Object

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

Methods inherited from interface netkit.classifiers.Classifier

addListener, classify, classify, clearListeners, estimate, estimate, getLogger, getNofifyListeners, notifyListeners, notifyListeners, removeListener, reset, setNofityListeners

Constructor Detail

MetaMultiplicative

public MetaMultiplicative()

Method Detail

getShortName

public java.lang.String getShortName()

Returns:

'MetaMultiplicative'

getName

public java.lang.String getName()

Returns:

'MetaMultiplicative Network Classifier(classifiernames)'

See Also:

NetworkMetaClassifier.getClassifierNames()

getDescription

public java.lang.String getDescription()

Returns:

'Does a bayesian combination (multiplies probabilities) of the classifiers to be used'

induceModel

public void induceModel(Graph graph,
                        DataSplit split)

Induce the model. This calls the superclass.

Specified by:

induceModel in interface Classifier

Overrides:

induceModel in class NetworkMetaClassifier

Parameters:

graph -

split -

See Also:

NetworkMetaClassifier.induceModel(netkit.graph.Graph, netkit.classifiers.DataSplit)

doEstimate

protected boolean doEstimate(Node node,
                             double[] result)

Get the estimates from each of the underlying classifiers, multiply their respective predictions together and return a normalized distribution.

Specified by:

doEstimate in class NetworkClassifierImp

Parameters:

node - The node to estimate class probabilities for

result - the double array containing the probability estimates that the node belongs to each of the possible class labels.

Returns:

the label estimate distribution of this classifier

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object