netkit.classifiers.nonrelational
Class NullPrior

java.lang.Object
  netkit.classifiers.ClassifierImp
      netkit.classifiers.nonrelational.NullPrior

All Implemented Interfaces:

Classifier, Configurable

public final class NullPrior
extends ClassifierImp

Predict nothing. Useful to initialize predictions in some circumstances (such as for the Iterative Classification Algorithm).

Author:

Sofus A. Macskassy (sofmac@gmail.com)

Field Summary

Fields inherited from class netkit.classifiers.ClassifierImp

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

Constructor Summary

NullPrior()

Method Summary

boolean	estimate(Node node, double[] result) Estimate the probabilities that a given node into belongs to any given class.
java.lang.String	getDescription()
java.lang.String	getName()
java.lang.String	getShortName()
java.lang.String	toString()

Methods inherited from class netkit.classifiers.ClassifierImp

addListener, classify, classify, clearListeners, configure, estimate, estimate, getAttributeNames, getDefaultConfiguration, getLogger, getNofifyListeners, induceModel, makeVector, notifyListeners, notifyListeners, removeListener, reset, setNofityListeners

Methods inherited from class java.lang.Object

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

Constructor Detail

NullPrior

public NullPrior()

Method Detail

getShortName

public java.lang.String getShortName()

Returns:

'NullPrior'

getName

public java.lang.String getName()

Returns:

'NullPrior'

getDescription

public java.lang.String getDescription()

Returns:

a short description of this class.

estimate

public boolean estimate(Node node,
                        double[] result)

Description copied from interface: Classifier

Estimate the probabilities that a given node into belongs to any given class.

Parameters:

node - The node for which to make predictions

result - The array to fill with the predictions---this is filled with the class marginals from the training set

Returns:

false (meaning that it did not really make a prediction)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object