cc.mallet.classify.constraints.ge
Class MaxEntKLFLGEConstraints

java.lang.Object
  cc.mallet.classify.constraints.ge.MaxEntFLGEConstraints
      cc.mallet.classify.constraints.ge.MaxEntKLFLGEConstraints

All Implemented Interfaces:

MaxEntGEConstraint

public class MaxEntKLFLGEConstraints
extends MaxEntFLGEConstraints

Expectation constraint for use with GE. Penalizes KL divergence from target distribution. Multiple constraints are grouped together here to make things more efficient.

Author:

Gregory Druck

Nested Class Summary

protected class

MaxEntKLFLGEConstraints.MaxEntKLFLGEConstraint

Nested classes/interfaces inherited from class cc.mallet.classify.constraints.ge.MaxEntFLGEConstraints

MaxEntFLGEConstraints.MaxEntFLGEConstraint

Field Summary

Fields inherited from class cc.mallet.classify.constraints.ge.MaxEntFLGEConstraints

constraints, indexCache, numFeatures, numLabels, useValues, valueCache

Constructor Summary

MaxEntKLFLGEConstraints(int numFeatures, int numLabels, boolean useValues)

Method Summary

void	addConstraint(int fi, double[] ex, double weight)
double	getValue() Returns the total constraint value.

Methods inherited from class cc.mallet.classify.constraints.ge.MaxEntFLGEConstraints

computeExpectations, getCompositeConstraintFeatureValue, preProcess, preProcess, zeroExpectations

Methods inherited from class java.lang.Object

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

Constructor Detail

MaxEntKLFLGEConstraints

public MaxEntKLFLGEConstraints(int numFeatures,
                               int numLabels,
                               boolean useValues)

Method Detail

getValue

public double getValue()

Description copied from interface: MaxEntGEConstraint

Returns the total constraint value.

Returns:

Constraint value

addConstraint

public void addConstraint(int fi,
                          double[] ex,
                          double weight)

Specified by:

addConstraint in class MaxEntFLGEConstraints