/**
* Goes through the active list of tokens and expands each token, finding
* the set of successor tokens until all the successor tokens are emitting
* tokens.
*/
protected void growBranches()
{
int mapSize = activeList.size() * 10;
if (mapSize == 0)
{
mapSize = 1;
}
growTimer.start();
bestTokenMap = new Dictionary <SearchState, Token>(mapSize);
ActiveList oldActiveList = activeList;
resultList = new List <Token>();
activeList = activeListFactory.newInstance();
threshold = oldActiveList.getBeamThreshold();
wordThreshold = oldActiveList.getBestScore() + logRelativeWordBeamWidth;
var tokens = JavaToCs.GetTokenCollection(oldActiveList);
foreach (Token token in tokens)
{
collectSuccessorTokens(token);
}
growTimer.stop();
if (logger.IsInfoEnabled)
{
int hmms = activeList.size();
totalHmms += hmms;
logger.Info("Frame: " + currentFrameNumber + " Hmms: " + hmms
+ " total " + totalHmms);
}
}
/** Removes unpromising branches from the active list */
protected void pruneBranches()
{
int startSize = activeList.size();
pruneTimer.start();
activeList = pruner.prune(activeList);
beamPruned.value += startSize - activeList.size();
pruneTimer.stop();
}
/**
* Performs recognition for one frame. Returns true if recognition has been
* completed.
*
* @return <code>true</code> if recognition is completed.
*/
protected bool recognize()
{
bool more = scoreTokens(); // score emitting tokens
phraseDetected = false;
if (more)
{
pruneBranches(); // eliminate poor branches
if (phraseDetected)
{
logger.Info("Active List Pruned: number of active Token: "
+ activeList.size());
}
logger.Info("Pruning Done: Number of Active tokens: "
+ activeList.size());
currentFrameNumber++;
if (growSkipInterval == 0 ||
(currentFrameNumber % growSkipInterval) != 0)
{
phraseDetected = false;
logger.Info("---------- Grow Branches Step : Start ---------");
growBranches(); // extend remaining branches
logger.Info("---------- Grow Branches Step : Over ----------");
}
logCounter++;
}
return(!more);
}
private void checkPriorLists()
{
for (int i = 0; i < this.listPtr; i++)
{
ActiveList activeList = SimpleActiveListManager.access_000(this.this_0)[i];
if (activeList.size() > 0)
{
string text = new StringBuilder().append("At while processing state order").append(this.listPtr).append(", state order ").append(i).append(" not empty").toString();
throw new Error(text);
}
}
}
protected internal virtual void monitorStates(ActiveList activeList)
{
this.tokenSum += (long)activeList.size();
this.tokenCount++;
bool flag = this.tokenCount != 0;
int num = 1000;
if (num == -1 || (flag ? 1 : 0) % num == 0)
{
Logger logger = this.logger;
StringBuilder stringBuilder = new StringBuilder().append("Average Tokens/State: ");
long num2 = this.tokenSum;
long num3 = (long)this.tokenCount;
logger.info(stringBuilder.append((num3 != -1L) ? (num2 / num3) : (-num2)).toString());
}
}
private void dumpList(ActiveList activeList)
{
[email protected](new StringBuilder().append("Size: ").append(activeList.size()).append(" Best token: ").append(activeList.getBestToken()).toString());
}