private CptKey EvidenceToKey(Proposition[] evidence)
{
CptKey searchKey = new CptKey(GetKeySize(), true);
foreach (Proposition e in evidence)
{
RandomVariable var = this.vars.Single(d => d.name.Equals(e.name));
searchKey.Set(keyPosMap[var], (char)e.valueIndex);
}
return(searchKey);
}
private void SetKeys(ArraySegment <CptKey> keys, ArraySegment <RandomVariable> remainingVars)
{
if (remainingVars.Count == 0)
{
return;
}
RandomVariable var = remainingVars.Array[remainingVars.Offset];
remainingVars = new ArraySegment <RandomVariable>(remainingVars.Array, remainingVars.Offset + 1, remainingVars.Count - 1);
ArraySegment <CptKey>[] tokenSegments = DivideIntoNSegments(keys, var.tokens.Length);
for (int i = 0; i < tokenSegments.Length; i++)
{
ArraySegment <CptKey> segment = tokenSegments[i];
for (int index = segment.Offset; index < segment.Offset + segment.Count; index++)
{
CptKey key = segment.Array[index];
key.Set(keyPosMap[var], (char)i);
}
SetKeys(tokenSegments[i], remainingVars);
}
}