edu.cmu.sphinx.linguist.acoustic.tiedstate

Class CompositeSenone

java.lang.Object

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

edu.cmu.sphinx.linguist.acoustic.tiedstate.CompositeSenone

All Implemented Interfaces:

Senone, java.io.Serializable

public class CompositeSenone
extends ScoreCachingSenone

Represents a composite senone. A composite senone consists of a set of all possible senones for a given state. CompositeSenones are used when the exact context of a senone is not known. The CompositeSenone represents all the possible senones.

This class currently only needs to be public for testing purposes.

Note that all scores are maintained in LogMath log base

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CompositeSenone(Senone[] senones, float weight) Constructs a CompositeSenone given the set of constituent senones

Method Summary

Modifier and Type	Method and Description
float[]	calculateComponentScore(Data feature) Calculate scores for each component in the senone's distribution.
float	calculateScore(Data feature) Calculates the composite senone score.
static CompositeSenone	create(java.util.Collection<Senone> senoneCollection, float weight) a factory method that creates a CompositeSenone from a list of senones.
void	dump(java.lang.String msg) Dumps this senone
boolean	equals(java.lang.Object o) Determines if two objects are equal
long	getID() Gets the ID for this senone
float[]	getLogMixtureWeights()
MixtureComponent[]	getMixtureComponents() Returns the mixture components associated with this Gaussian
Senone[]	getSenones() Returns the set of senones that compose this composite senone.
int	hashCode() Returns the hashcode for this object
java.lang.String	toString() Retrieves a string form of this object

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

CompositeSenone

public CompositeSenone(Senone[] senones,
                       float weight)

Constructs a CompositeSenone given the set of constituent senones

Parameters:

senones - the set of constituent senones

weight - weigth for composition

Method Detail

create

public static CompositeSenone create(java.util.Collection<Senone> senoneCollection,
                                     float weight)

a factory method that creates a CompositeSenone from a list of senones.

Parameters:

senoneCollection - the Collection of senones

weight - weigth

Returns:

a composite senone

dump

public void dump(java.lang.String msg)

Dumps this senone

Parameters:

msg - annotation for the dump

calculateScore

public float calculateScore(Data feature)

Calculates the composite senone score. Typically this is the best score for all of the constituent senones

Specified by:

calculateScore in class ScoreCachingSenone

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)

Calculate scores for each component in the senone's distribution. Not yet implemented.

Parameters:

feature - the current feature

Returns:

the score for the feature in LogMath

getSenones

public Senone[] getSenones()

Returns the set of senones that compose this composite senone. This method is only needed for unit testing.

Returns:

the array of senones.

equals

public boolean equals(java.lang.Object o)

Determines if two objects are equal

Overrides:

equals in class java.lang.Object

Parameters:

o - the object to compare to this.

Returns:

true if the objects are equal

hashCode

public int hashCode()

Returns the hashcode for this object

Overrides:

hashCode in class java.lang.Object

Returns:

the hashcode

getID

public long getID()

Gets the ID for this senone

Returns:

the senone id

toString

public java.lang.String toString()

Retrieves a string form of this object

Overrides:

toString in class java.lang.Object

Returns:

the string representation of this object

getMixtureComponents

public MixtureComponent[] getMixtureComponents()

Description copied from interface: Senone

Returns the mixture components associated with this Gaussian

Returns:

the array of mixture components

getLogMixtureWeights

public float[] getLogMixtureWeights()

Returns:

the mixture weights vector