edu.cmu.sphinx.linguist.flat

Class CIPhoneLoop

java.lang.Object

edu.cmu.sphinx.linguist.flat.CIPhoneLoop

public class CIPhoneLoop
extends java.lang.Object

Constructs a loop of all the context-independent phones. This loop is used in the static flat linguist for detecting out-of-grammar utterances. A 'phoneInsertionProbability' will be added to the score each time a new phone is entered. To obtain the all-phone search graph loop, simply called the method getSearchGraph.

For futher details of this approach cf. 'Modeling Out-of-vocabulary Words for Robust Speech Recognition', Brazzi, 2000, Proc. ICSLP

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	CIPhoneLoop.PhoneLoopSearchGraph

Field Summary

Fields

Modifier and Type	Field and Description
float	logOne
AcousticModel	model

Constructor Summary

Constructors

Constructor and Description
CIPhoneLoop(AcousticModel model, float logPhoneInsertionProbability) Creates the CIPhoneLoop with the given acoustic model and phone insertion probability

Method Summary

Modifier and Type	Method and Description
SearchGraph	getSearchGraph() Creates a new loop of all the context-independent phones.

Methods inherited from class java.lang.Object

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

Field Detail

model

public final AcousticModel model

logOne

public final float logOne

See Also:

Constant Field Values

Constructor Detail

CIPhoneLoop

public CIPhoneLoop(AcousticModel model,
                   float logPhoneInsertionProbability)

Creates the CIPhoneLoop with the given acoustic model and phone insertion probability

Parameters:

model - the acoustic model

logPhoneInsertionProbability - the insertion probability

Method Detail

getSearchGraph

public SearchGraph getSearchGraph()

Creates a new loop of all the context-independent phones.

Returns:

the phone loop search graph