/**
* 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()
{
ActiveList fixedList = activeList.newInstance();
var tokens = JavaToCs.GetTokenCollection(activeList);
foreach (Token token in tokens)
{
Token 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);
}
public override void clearEmittingList()
{
ActiveList activeList = this.currentActiveLists[this.currentActiveLists.Length - 1];
this.currentActiveLists[this.currentActiveLists.Length - 1] = activeList.newInstance();
}