/**
* /// Because the growBranches() is called although no data is left after the last speech frame, the ordering of the
* /// active-list might depend on the transition probabilities and (penalty-scores) only. Therefore we need to undo the last
* /// grow-step up to final states or the last emitting state in order to fix the list.
* /// @return newly created list
*/
protected ActiveList undoLastGrowStep()
{
var fixedList = activeList.newInstance();
foreach (var token in activeList.getTokens())
{
var curToken = token.getPredecessor();
// remove the final states that are not the real final ones because they're just hide prior final tokens:
while (curToken.getPredecessor() != null && (
(curToken.isFinal() && curToken.getPredecessor() != null && !curToken.getPredecessor().isFinal()) ||
(curToken.isEmitting() && curToken.getData() == null) || // the so long not scored tokens
(!curToken.isFinal() && !curToken.isEmitting())))
{
curToken = curToken.getPredecessor();
}
fixedList.add(curToken);
}
return(fixedList);
}
/**
* /// Clears emitting list in manager
*/
override public void clearEmittingList()
{
ActiveList list = currentActiveLists[currentActiveLists.Length - 1];
currentActiveLists[currentActiveLists.Length - 1] = list.newInstance();
}
