private void CreateContextDependentSuccessors()
{
_cdHMMs = new HashMap <Unit, HashMap <Unit, List <IHMM> > >();
_senonesToUnits = new HashMap <SenoneSequence, List <Unit> >();
_fillerHMMs = new List <IHMM>();
_leftContextSilHMMs = new List <IHMM>();
var hmmIter = AcousticModel.GetHMMIterator();
while (hmmIter.MoveNext())
{
IHMM hmm = hmmIter.Current;
List <Unit> sameSenonesUnits;
SenoneSequence senoneSeq = ((SenoneHMM)hmm).SenoneSequence;
if ((sameSenonesUnits = _senonesToUnits.Get(senoneSeq)) == null)
{
sameSenonesUnits = new List <Unit>();
_senonesToUnits.Put(senoneSeq, sameSenonesUnits);
}
sameSenonesUnits.Add(hmm.Unit as Unit);
if (hmm.Unit.IsFiller)
{
_fillerHMMs.Add(hmm);
continue;
}
if (hmm.Unit.IsContextDependent())
{
LeftRightContext context = (LeftRightContext)hmm.Unit.Context;
Unit lc = context.LeftContext[0] as Unit;
if (lc == UnitManager.Silence)
{
_leftContextSilHMMs.Add(hmm);
continue;
}
Unit baseUnit = hmm.Unit.BaseUnit as Unit;
HashMap <Unit, List <IHMM> > lcSuccessors;
if ((lcSuccessors = _cdHMMs.Get(lc)) == null)
{
lcSuccessors = new HashMap <Unit, List <IHMM> >();
_cdHMMs.Put(lc, lcSuccessors);
}
List <IHMM> lcBaseSuccessors;
if ((lcBaseSuccessors = lcSuccessors.Get(baseUnit)) == null)
{
lcBaseSuccessors = new List <IHMM>();
lcSuccessors.Put(baseUnit, lcBaseSuccessors);
}
lcBaseSuccessors.Add(hmm);
}
}
_leftContextSilHMMs.AddRange(_fillerHMMs);
}
private void CreateContextIndependentSuccessors()
{
var hmmIter = AcousticModel.GetHMMIterator();
CISuccessors = new List <IHMM>();
_senonesToUnits = new HashMap <SenoneSequence, List <Unit> >();
while (hmmIter.MoveNext())
{
IHMM hmm = hmmIter.Current;
if (!hmm.Unit.IsContextDependent())
{
List <Unit> sameSenonesUnits;
SenoneSequence senoneSeq = ((SenoneHMM)hmm).SenoneSequence;
if ((sameSenonesUnits = _senonesToUnits.Get(senoneSeq)) == null)
{
sameSenonesUnits = new List <Unit>();
_senonesToUnits.Put(senoneSeq, sameSenonesUnits);
}
sameSenonesUnits.Add(hmm.Unit as Unit);
CISuccessors.Add(hmm);
}
}
}
