edu.cmu.sphinx.linguist.lextree

Class LexTreeLinguist.LexTreeHMMState

java.lang.Object

edu.cmu.sphinx.linguist.lextree.LexTreeLinguist.LexTreeHMMState

All Implemented Interfaces:

ScoreProvider, HMMSearchState, SearchState, SearchStateArc

Direct Known Subclasses:

LexTreeLinguist.LexTreeNonEmittingHMMState

Enclosing class:

LexTreeLinguist

public class LexTreeLinguist.LexTreeHMMState
extends java.lang.Object
implements HMMSearchState, ScoreProvider

Represents a HMM state in the search space

Method Summary

Modifier and Type	Method and Description
protected SearchStateArc	createWordStateArc(edu.cmu.sphinx.linguist.lextree.WordNode wordNode, edu.cmu.sphinx.linguist.lextree.HMMNode lastUnit, edu.cmu.sphinx.linguist.lextree.LexTreeLinguist.LexTreeState previous) Creates a word search state for the given word node
boolean	equals(java.lang.Object o) Determines if the given object is equal to this object
float[]	getComponentScore(Data feature) Provides component score
HMMState	getHMMState() returns the HMM state associated with this state
float	getInsertionProbability() Gets the language probability of entering this state
float	getLanguageProbability() Gets the language probability of entering this state
edu.cmu.sphinx.linguist.lextree.Node	getLexState() Returns the lex tree state
protected edu.cmu.sphinx.linguist.lextree.Node	getNode() Gets the hmm tree node representing the unit
int	getOrder() Returns the order of this particular state
float	getProbability() Gets the composite probability of entering this state
float	getScore(Data data) Provides the score
java.lang.String	getSignature() Gets the ID for this state
float	getSmearProb()
float	getSmearTerm()
SearchState	getState() Gets a successor to this search state
SearchStateArc[]	getSuccessors() Retrieves the set of successors for this state
protected SearchStateArc[]	getSuccessors(edu.cmu.sphinx.linguist.lextree.Node theNode) Returns the list of successors to this state
WordSequence	getWordHistory() Returns the word sequence for this state
int	hashCode() Generate a hashcode for an object
boolean	isEmitting() Determines if this is an emitting state
boolean	isFinal() Determines if this is a final state
java.lang.String	toPrettyString() Returns a pretty version of the string representation for this object
java.lang.String	toString() Returns the string representation of this object

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.cmu.sphinx.linguist.SearchState

getLexState, getWordHistory, isFinal, toPrettyString

Method Detail

getSignature

public java.lang.String getSignature()

Gets the ID for this state

Specified by:

getSignature in interface SearchState

Returns:

the ID

getHMMState

public HMMState getHMMState()

returns the HMM state associated with this state

Specified by:

getHMMState in interface HMMSearchState

Returns:

the HMM state

hashCode

public int hashCode()

Generate a hashcode for an object

Returns:

the hashcode

equals

public boolean equals(java.lang.Object o)

Determines if the given object is equal to this object

Parameters:

o - the object to test

Returns:

true if the object is equal to this

getLanguageProbability

public float getLanguageProbability()

Gets the language probability of entering this state

Specified by:

getLanguageProbability in interface SearchStateArc

Returns:

the log probability

getInsertionProbability

public float getInsertionProbability()

Gets the language probability of entering this state

Specified by:

getInsertionProbability in interface SearchStateArc

Returns:

the log probability

getSuccessors

public SearchStateArc[] getSuccessors()

Retrieves the set of successors for this state

Specified by:

getSuccessors in interface SearchState

Returns:

the list of successor states

isEmitting

public boolean isEmitting()

Determines if this is an emitting state

Specified by:

isEmitting in interface SearchState

Returns:

true if this is an emitting state.

toString

public java.lang.String toString()

Returns the string representation of this object

Returns:

the string representation

getOrder

public int getOrder()

Description copied from interface: SearchState

Returns the order of this particular state

Specified by:

getOrder in interface SearchState

Returns:

the state order for this state

getScore

public float getScore(Data data)

Description copied from interface: ScoreProvider

Provides the score

Specified by:

getScore in interface ScoreProvider

Parameters:

data - data to score

Returns:

the score

getComponentScore

public float[] getComponentScore(Data feature)

Description copied from interface: ScoreProvider

Provides component score

Specified by:

getComponentScore in interface ScoreProvider

Parameters:

feature - data to score

Returns:

the score

getSmearTerm

public float getSmearTerm()

getSmearProb

public float getSmearProb()

getState

public SearchState getState()

Gets a successor to this search state

Specified by:

getState in interface SearchStateArc

Returns:

the successor state

getProbability

public float getProbability()

Gets the composite probability of entering this state

Specified by:

getProbability in interface SearchStateArc

Returns:

the log probability

isFinal

public boolean isFinal()

Determines if this is a final state

Specified by:

isFinal in interface SearchState

Returns:

true if this is an final state.

getNode

protected edu.cmu.sphinx.linguist.lextree.Node getNode()

Gets the hmm tree node representing the unit

Returns:

the unit lex node

getWordHistory

public WordSequence getWordHistory()

Returns the word sequence for this state

Specified by:

getWordHistory in interface SearchState

Returns:

the word sequence

getLexState

public edu.cmu.sphinx.linguist.lextree.Node getLexState()

Description copied from interface: SearchState

Returns the lex tree state

Specified by:

getLexState in interface SearchState

Returns:

the lex tree state

getSuccessors

protected SearchStateArc[] getSuccessors(edu.cmu.sphinx.linguist.lextree.Node theNode)

Returns the list of successors to this state

Parameters:

theNode - node to get successors

Returns:

a list of SearchState objects

createWordStateArc

protected SearchStateArc createWordStateArc(edu.cmu.sphinx.linguist.lextree.WordNode wordNode,
                                            edu.cmu.sphinx.linguist.lextree.HMMNode lastUnit,
                                            edu.cmu.sphinx.linguist.lextree.LexTreeLinguist.LexTreeState previous)

Creates a word search state for the given word node

Parameters:

wordNode - the wordNode

lastUnit - last unit of the word

previous - previous state

Returns:

the search state for the wordNode

toPrettyString

public java.lang.String toPrettyString()

Returns a pretty version of the string representation for this object

Specified by:

toPrettyString in interface SearchState

Returns:

a pretty string