edu.cmu.sphinx.linguist.acoustic.tiedstate.tiedmixture

Class SetBasedGaussianMixture

java.lang.Object

edu.cmu.sphinx.linguist.acoustic.tiedstate.ScoreCachingSenone

edu.cmu.sphinx.linguist.acoustic.tiedstate.GaussianMixture

edu.cmu.sphinx.linguist.acoustic.tiedstate.tiedmixture.SetBasedGaussianMixture

All Implemented Interfaces:

Senone, java.io.Serializable

public class SetBasedGaussianMixture
extends GaussianMixture

Represents gaussian mixture that is based on provided mixture component set

All scores and weights are maintained in LogMath log base.

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.cmu.sphinx.linguist.acoustic.tiedstate.GaussianMixture

id, logMath, mixtureWeights

Constructor Summary

Constructors

Constructor and Description
SetBasedGaussianMixture(GaussianWeights mixtureWeights, MixtureComponentSet mixtureComponentSet, int id)

Method Summary

Modifier and Type	Method and Description
float[]	calculateComponentScore(Data feature) Calculates the scores for each component in the senone.
float	calculateScore(Data feature) Calculates the score for this senone based upon the given feature.
int	dimension()
MixtureComponent[]	getMixtureComponents() Returns the mixture components associated with this Gaussian
int	numComponents()

Methods inherited from class edu.cmu.sphinx.linguist.acoustic.tiedstate.GaussianMixture

dump, equals, getComponentWeights, getID, getLogComponentWeight, getLogMixtureWeights, hashCode, toString

Methods inherited from class edu.cmu.sphinx.linguist.acoustic.tiedstate.ScoreCachingSenone

getScore

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SetBasedGaussianMixture

public SetBasedGaussianMixture(GaussianWeights mixtureWeights,
                               MixtureComponentSet mixtureComponentSet,
                               int id)

Method Detail

calculateScore

public float calculateScore(Data feature)

Description copied from class: ScoreCachingSenone

Calculates the score for this senone based upon the given feature.

Overrides:

calculateScore in class GaussianMixture

Parameters:

feature - the feature vector to score this senone against

Returns:

the score for this senone in LogMath log base

calculateComponentScore

public float[] calculateComponentScore(Data feature)

Calculates the scores for each component in the senone.

Specified by:

calculateComponentScore in interface Senone

Overrides:

calculateComponentScore in class GaussianMixture

Parameters:

feature - the feature to score

Returns:

the LogMath log scores for the feature, one for each component

getMixtureComponents

public MixtureComponent[] getMixtureComponents()

Description copied from interface: Senone

Returns the mixture components associated with this Gaussian

Specified by:

getMixtureComponents in interface Senone

Overrides:

getMixtureComponents in class GaussianMixture

Returns:

the array of mixture components

dimension

public int dimension()

Overrides:

dimension in class GaussianMixture

Returns:

the dimension of the modeled feature space

numComponents

public int numComponents()

Overrides:

numComponents in class GaussianMixture

Returns:

the number of component densities of this GaussianMixture.