LexicalNode Struct Reference

A lexical node is a single node of the lexical tree or Pronounciation Prefix Tree (PPT). It contains token, AM and word information. More...

List of all members.

Public Attributes
TokenType **	tokenSeq
	Normally of length NONSIL_NUMBER_OF_STATES (3).
LexicalNode *	nextTree
	If wordID != -1, this points to the start node of the next tree (for LVCSR back to the top).
LexicalNode *	next
	Next node. Multiple 'next' nodes are linked together (in the next node) with 'parallel'.
LexicalNode *	parallel
	Parallel node.
TokenType **	inputToken
int	modelID
int	contextPrev
	Previous modelID (left context).
int	contextNext
	Next modelID (right context).
int	contextKey
	For speed-up reasons pre-calculated: contextPrev * numberOfPhones + contextNext.
int	wordID
	-1 if not an end node. Otherwise the ID of the word.
int	depth
int	tokenSeqLength
int	compressedTreeIndex
bool	nodeIsActive
	One or more states of this node are being used.
bool	toBeDeletedFromList
	When this switch is TRUE. The node will be deleted from the 'active list'.

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Detailed Description

A lexical node is a single node of the lexical tree or Pronounciation Prefix Tree (PPT). It contains token, AM and word information.

Because we use a static PPT (no copies are made), for each HMM state in a node, it is possible that there are multiple valid tokens linked to it.

The modelID points to the PhoneModel object (AM model). If wordID is not -1, this node is a word-end node.

Each node can have a following node (next) in the tree. It may also have a parallel node. Finaly it is possible that a node points to another lexical tree structure. This typically happens with alignment- or grammar-tasks.

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Member Data Documentation

int LexicalNode::compressedTreeIndex

Referenced by Segmenter::createLexicalTree(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_initBackward(), LexicalTree::latticeBaumWelch_initForward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_numberNodes(), LexicalTree::latticeBaumWelch_printPosteriors(), LexicalTree::latticeBaumWelch_setLikelihoods(), LexicalTree::prepareLMLACreation(), LexicalTree::processNode(), LexicalTree::setLattice(), LexicalTree::setNodeLocationPars(), and LexicalTree::setTreeStartEndMatrix().

int LexicalNode::contextKey

For speed-up reasons pre-calculated: contextPrev * numberOfPhones + contextNext.

Referenced by LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), Segmenter::createLexicalTree(), LexicalTree::findCorrectNode(), LexicalTree::getPhoneString(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_printPosteriors(), LexicalTree::latticeBaumWelch_setLikelihoods(), LexicalTree::processNode(), LexicalTree::processNodeOutput(), LexicalTree::processVector_processNodes(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setNodeLocationPars(), and LexicalTree::setTreeStartEndMatrix().

int LexicalNode::contextNext

Next modelID (right context).

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), Segmenter::createLexicalTree(), LexicalTree::getPhoneString(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setNodeLocationPars(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), Shout_dct2lextree::Shout_dct2lextree(), and Shout_dct2lextree::writeTree().

int LexicalNode::contextPrev

Previous modelID (left context).

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), Segmenter::createLexicalTree(), LexicalTree::getPhoneString(), LexicalTree::processVector_processNodes(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setNodeLocationPars(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), Shout_dct2lextree::Shout_dct2lextree(), and Shout_dct2lextree::writeTree().

int LexicalNode::depth

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), Segmenter::createLexicalTree(), LexicalTree::deleteTree(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::processNode(), LexicalTree::setDepthLevel(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setTreeStartEndMatrix(), and LexicalTree::~LexicalTree().

TokenType** LexicalNode::inputToken

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), Segmenter::createLexicalTree(), LexicalTree::deleteNodes(), LexicalTree::deleteTree(), LexicalTree::findBestToken(), LexicalTree::getBestGrammarEndToken(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseSystem(), LexicalTree::initialiseTree(), LexicalTree::LexicalTree(), LexicalTree::processNode(), LexicalTree::processNodeOutput(), LexicalTree::processVector_grammar(), LexicalTree::processVector_LMLAReordering(), LexicalTree::processVector_LMLAReordering_prepare(), LexicalTree::processVector_processNodes(), LexicalTree::processVector_pruneLM(), LexicalTree::processWord(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), ArticulatoryStream::testStream(), LexicalTree::updateStats(), and LexicalTree::~LexicalTree().

int LexicalNode::modelID

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), LexicalTree::checkTreeRobustness(), Segmenter::createLexicalTree(), Segmenter::createSegments(), LexicalTree::getAlignmentString(), LexicalTree::getLastModelForContext(), LexicalTree::getPhoneString(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_printPosteriors(), LexicalTree::latticeBaumWelch_setLikelihoods(), LexicalTree::prepareLMLACreation(), LexicalTree::printWordPronunciation(), LexicalTree::processNode(), LexicalTree::processNodeOutput(), LexicalTree::processVector_processNodes(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), Shout_dct2lextree::Shout_dct2lextree(), ArticulatoryStream::testStream(), and Shout_dct2lextree::writeTree().

LexicalNode* LexicalNode::next

Next node. Multiple 'next' nodes are linked together (in the next node) with 'parallel'.

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), LexicalTree::checkTreeRobustness(), Segmenter::createLexicalTree(), LexicalTree::deleteTree(), LexicalTree::findCorrectNode(), LexicalTree::getAlignmentString(), LexicalTree::getLastModelForContext(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_numberNodes(), LexicalTree::latticeBaumWelch_printPosteriors(), LexicalTree::latticeBaumWelch_setLikelihoods(), LexicalTree::prepareLMLACreation(), LexicalTree::printWordPronunciation(), LexicalTree::processNodeOutput(), LexicalTree::readTree(), LexicalTree::setDepthLevel(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setNodeLocationPars(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), Shout_dct2lextree::Shout_dct2lextree(), and Shout_dct2lextree::writeTree().

LexicalNode* LexicalNode::nextTree

If wordID != -1, this points to the start node of the next tree (for LVCSR back to the top).

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), Segmenter::createLexicalTree(), LexicalTree::deleteTree(), LexicalTree::getAlignmentString(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseTree(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_numberNodes(), LexicalTree::latticeBaumWelch_printPosteriors(), LexicalTree::latticeBaumWelch_setLikelihoods(), LexicalTree::LexicalTree(), LexicalTree::processNodeOutput(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setPhoneLoop(), and LexicalTree::setTreeStartEndMatrix().

bool LexicalNode::nodeIsActive

One or more states of this node are being used.

Referenced by LexicalTree::addNodeToList(), LexicalTree::createActiveNodesList(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseSystem(), LexicalTree::initialiseTree(), LexicalTree::LexicalTree(), LexicalTree::processVector_administrationCleanup(), LexicalTree::processVector_processNodes(), LexicalTree::readTree(), LexicalTree::setLattice(), LexicalTree::setPhoneLoop(), and LexicalTree::setTreeStartEndMatrix().

LexicalNode* LexicalNode::parallel

Parallel node.

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), LexicalTree::checkTreeRobustness(), Segmenter::createLexicalTree(), Segmenter::createSegments(), LexicalTree::deleteTree(), LexicalTree::findCorrectNode(), LexicalTree::getLastModelForContext(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseSystem(), LexicalTree::initialiseTree(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_initBackward(), LexicalTree::latticeBaumWelch_initForward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_numberNodes(), LexicalTree::latticeBaumWelch_printPosteriors(), LexicalTree::latticeBaumWelch_setLikelihoods(), LexicalTree::prepareLMLACreation(), LexicalTree::printWordPronunciation(), LexicalTree::processVector_processNodes(), LexicalTree::readTree(), LexicalTree::setDepthLevel(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeContext(), LexicalTree::setNodeLocationPars(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), Shout_dct2lextree::Shout_dct2lextree(), Shout_dct2lextree::writeTree(), and LexicalTree::~LexicalTree().

bool LexicalNode::toBeDeletedFromList

When this switch is TRUE. The node will be deleted from the 'active list'.

Referenced by LexicalTree::addNodeToList(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseSystem(), LexicalTree::initialiseTree(), LexicalTree::LexicalTree(), LexicalTree::processNode(), LexicalTree::processNodeOutput(), LexicalTree::processVector_administrationCleanup(), LexicalTree::processVector_processNodes(), LexicalTree::readTree(), LexicalTree::setLattice(), LexicalTree::setPhoneLoop(), and LexicalTree::setTreeStartEndMatrix().

TokenType** LexicalNode::tokenSeq

Normally of length NONSIL_NUMBER_OF_STATES (3).

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), Segmenter::createLexicalTree(), Segmenter::createSegments(), LexicalTree::deleteNodes(), LexicalTree::deleteTree(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseSystem(), LexicalTree::LexicalTree(), LexicalTree::processNode(), LexicalTree::processNodeOutput(), LexicalTree::processVector_grammar(), LexicalTree::processVector_prune_processNodesOutput(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), LexicalTree::updateStats(), and LexicalTree::~LexicalTree().

int LexicalNode::tokenSeqLength

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), ArticulatoryStream::ArticulatoryStream(), Segmenter::createLexicalTree(), LexicalTree::deleteNodes(), LexicalTree::getPhoneString(), LexicalTree::initialiseNode(), LexicalTree::initialiseSystem(), LexicalTree::LexicalTree(), LexicalTree::processNode(), LexicalTree::processNodeOutput(), LexicalTree::processVector_prune_processNodesOutput(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), ArticulatoryStream::testStream(), and LexicalTree::updateStats().

int LexicalNode::wordID

-1 if not an end node. Otherwise the ID of the word.

Referenced by LexicalTree::addForcedAlignOOV(), LexicalTree::addWordStringToAlignment(), Segmenter::createLexicalTree(), LexicalTree::getLastModelForContext(), LexicalTree::getPhoneString(), LexicalTree::prepareLMLACreation(), LexicalTree::printWordPronunciation(), LexicalTree::processNodeOutput(), LexicalTree::processVector_processNodes(), LexicalTree::processVector_prune_processNodesOutput(), LexicalTree::readTree(), LexicalTree::setForcedAlign(), LexicalTree::setLattice(), LexicalTree::setNodeLocationPars(), LexicalTree::setPhoneLoop(), LexicalTree::setTreeStartEndMatrix(), Shout_dct2lextree::Shout_dct2lextree(), and Shout_dct2lextree::writeTree().