cc.mallet.classify.constraints.ge
Class MaxEntL2FLGEConstraints

java.lang.Object
  cc.mallet.classify.constraints.ge.MaxEntFLGEConstraints
      cc.mallet.classify.constraints.ge.MaxEntL2FLGEConstraints

All Implemented Interfaces:

MaxEntGEConstraint

public class MaxEntL2FLGEConstraints
extends MaxEntFLGEConstraints

Expectation constraint for use with GE. Penalizes L_2^2 difference from target expectation. Multiple constraints are grouped together here to make things more efficient.

Author:

Gregory Druck

Nested Class Summary

protected class

MaxEntL2FLGEConstraints.MaxEntL2FLGEConstraint

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

MaxEntL2FLGEConstraints(int numFeatures, int numLabels, boolean useValues, boolean normalize)

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

MaxEntL2FLGEConstraints

public MaxEntL2FLGEConstraints(int numFeatures,
                               int numLabels,
                               boolean useValues,
                               boolean normalize)

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