public void ProjectGrammar(int[][] traces, LAPCFGrammar grammar)
{
int[] trace = traces [tag];
for (int i = trace.Length - 1; i >= 0; --i) {
pruned [i] = pruned [trace [i]];
}
subtagCount = grammar.subTagCounts [tag];
alpha.Length = subtagCount;
beta.Length = subtagCount;
if (TYPE != VTYPE.TERMINAL) {
for (int i = 0; i < subtagCount; ++i) {
_alpha [i] = double.NegativeInfinity;
}
} else {
for (int i = 0; i < subtagCount; ++i) {
_alpha [i] = 0;
}
}
for (int i = 0; i < beta.Length; ++i) {
_beta [i] = double.NegativeInfinity;
}
foreach (var e in incomings) {
switch (e.TYPE) {
case ETYPE.BINARY:
e.binaryScores = grammar.GetRuleScores (e.to.tag, e.from0.tag, e.from1.tag, true);
break;
case ETYPE.UNARY:
e.unaryScores = grammar.GetRuleScores (e.to.tag, e.from0.tag, true);
break;
case ETYPE.TERMINAL:
e.terminalScores = grammar.GetTerminalRuleScores (e.to.tag, e.from0.tag, true);
break;
case ETYPE.DUMMY:
break;
default:
throw new Exception ("unrecognized edge type!");
}
}
posteriorScore = double.NegativeInfinity;
}
