lemming.lemma.ranker

Class RankerObjective

java.lang.Object

lemming.lemma.ranker.RankerObjective

All Implemented Interfaces:

cc.mallet.optimize.Optimizable, cc.mallet.optimize.Optimizable.ByGradientValue

public class RankerObjective
extends java.lang.Object
implements cc.mallet.optimize.Optimizable.ByGradientValue

Nested Class Summary

Nested classes/interfaces inherited from interface cc.mallet.optimize.Optimizable

cc.mallet.optimize.Optimizable.ByBatchGradient, cc.mallet.optimize.Optimizable.ByCombiningBatchGradient, cc.mallet.optimize.Optimizable.ByGISUpdate, cc.mallet.optimize.Optimizable.ByGradient, cc.mallet.optimize.Optimizable.ByGradientValue, cc.mallet.optimize.Optimizable.ByHessian, cc.mallet.optimize.Optimizable.ByValue, cc.mallet.optimize.Optimizable.ByVotedPerceptron

Constructor Summary

Constructors

Constructor and Description
RankerObjective(RankerTrainer.RankerTrainerOptions options, RankerModel model, java.util.List<RankerInstance> instances)
RankerObjective(RankerTrainer.RankerTrainerOptions options, RankerModel model, java.util.List<RankerInstance> instances, int max_num_duplicates)

Method Summary

Modifier and Type	Method and Description
int	getNumParameters()
double	getParameter(int arg0)
void	getParameters(double[] params)
double	getValue()
void	getValueGradient(double[] gradient)
void	setParameter(int arg0, double arg1)
void	setParameters(double[] params)
void	update()
void	update(RankerInstance instance, boolean sgd, double step_width)

Methods inherited from class java.lang.Object

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

Constructor Detail

RankerObjective

public RankerObjective(RankerTrainer.RankerTrainerOptions options,
                       RankerModel model,
                       java.util.List<RankerInstance> instances,
                       int max_num_duplicates)

RankerObjective

public RankerObjective(RankerTrainer.RankerTrainerOptions options,
                       RankerModel model,
                       java.util.List<RankerInstance> instances)

Method Detail

update

public void update(RankerInstance instance,
                   boolean sgd,
                   double step_width)

update

public void update()

getNumParameters

public int getNumParameters()

Specified by:

getNumParameters in interface cc.mallet.optimize.Optimizable

getParameter

public double getParameter(int arg0)

Specified by:

getParameter in interface cc.mallet.optimize.Optimizable

getParameters

public void getParameters(double[] params)

Specified by:

getParameters in interface cc.mallet.optimize.Optimizable

setParameter

public void setParameter(int arg0,
                         double arg1)

Specified by:

setParameter in interface cc.mallet.optimize.Optimizable

setParameters

public void setParameters(double[] params)

Specified by:

setParameters in interface cc.mallet.optimize.Optimizable

getValue

public double getValue()

Specified by:

getValue in interface cc.mallet.optimize.Optimizable.ByGradientValue

getValueGradient

public void getValueGradient(double[] gradient)

Specified by:

getValueGradient in interface cc.mallet.optimize.Optimizable.ByGradientValue