private int getEvidenceScore(NodeReference generalNode, KnowledgeConstraint constraint)
{
var evidenceScore = 0;
foreach (var evidence in _questions.Values)
{
var featureNode = evidence.GetFeatureNode(generalNode, Graph);
var answer = evidence.GetBestEvidenceAnswer();
if (constraint.IsSatisfiedBy(featureNode, answer, Graph))
{
//if answer is possible under given constraint, we count it to the score
evidenceScore += evidence.GetEvidenceScore(answer);
}
}
return(evidenceScore);
}
private HashSet <NodeReference> findSet(NodeReference constraintNode, KnowledgeConstraint constraint)
{
return(constraint.FindSet(constraintNode, Graph));
}
private IEnumerable <NodeReference> getConstrainedLayer(IEnumerable <NodeReference> nodeDomain, KnowledgeConstraint constraint)
{
return(Graph.GetForwardTargets(nodeDomain, constraint.Path));
}