edu.umass.cs.mallet.base.types

Class Multinomial.Estimator

java.lang.Object

edu.umass.cs.mallet.base.types.Multinomial.Estimator

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

Multinomial.MAPEstimator, Multinomial.MEstimator

Enclosing class:

Multinomial

public abstract static class Multinomial.Estimator
extends Object
implements Cloneable, Serializable

A hierarchy of classes used to produce estimates of probabilities, in the form of a Multinomial, from counts associated with the elements of an Alphabet. Estimator itself contains the machinery for associating and manipulating counts with elements of an Alphabet, including behaving sanely if the Alphabet changes size between calls. It does not contain any means of generating probability estimates; various means of estimating are provided by subclasses.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
	Estimator()
	Estimator(Alphabet dictionary)
	Estimator(double[] counts, Alphabet dictionary)
protected	Estimator(double[] counts, int size, Alphabet dictionary)
	Estimator(int size)

Method Summary

Modifier and Type	Method and Description
Object	clone()
protected void	ensureCapacity(int index)
abstract Multinomial	estimate()
double	getCount(int index)
void	increment(FeatureSequence fs)
void	increment(FeatureSequence fs, double scale)
void	increment(FeatureVector fv)
void	increment(FeatureVector fv, double scale)
void	increment(int index, double count)
void	increment(String key, double count)
void	print()
void	reset()
void	setAlphabet(Alphabet d)
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

Estimator

protected Estimator(double[] counts,
                    int size,
                    Alphabet dictionary)

Estimator

public Estimator(double[] counts,
                 Alphabet dictionary)

Estimator

public Estimator()

Estimator

public Estimator(int size)

Estimator

public Estimator(Alphabet dictionary)

Method Detail

setAlphabet

public void setAlphabet(Alphabet d)

size

public int size()

ensureCapacity

protected void ensureCapacity(int index)

reset

public void reset()

increment

public void increment(int index,
                      double count)

increment

public void increment(String key,
                      double count)

increment

public void increment(FeatureSequence fs,
                      double scale)

increment

public void increment(FeatureSequence fs)

increment

public void increment(FeatureVector fv,
                      double scale)

increment

public void increment(FeatureVector fv)

getCount

public double getCount(int index)

clone

public Object clone()

Overrides:

clone in class Object

print

public void print()

estimate

public abstract Multinomial estimate()