public Ranked <IEnumerable <NodeReference> > GetRankedAnswer(string question, ContextPool pool)
{
//keep original pool non-modified
pool = pool.Clone();
var parsedQuestion = UtteranceParser.Parse(question);
var covers = FeatureCover.GetFeatureCovers(parsedQuestion, Graph);
var interpretations = _mapping.GetRankedInterpretations(covers);
var bestMatch = interpretations.BestMatch;
if (bestMatch.Value == null)
{
//no interpretation has been found
return(new Ranked <IEnumerable <NodeReference> >(new NodeReference[0], 0.0));
}
var bestInterpretation = bestMatch.Value.Item2.Interpretation;
var bestCover = bestMatch.Value.Item1;
var instantiatedInterpretation = bestInterpretation.InstantiateBy(bestCover, Graph);
//run the interpretation on the pool
Console.WriteLine("\n");
foreach (var rule in instantiatedInterpretation.Rules)
{
rule.Execute(pool);
Console.WriteLine(rule);
Console.WriteLine("POOL: " + string.Join(" ", pool.ActiveNodes));
}
return(new Ranked <IEnumerable <NodeReference> >(pool.ActiveNodes, bestMatch.Rank));
}
internal InterpretationGenerator(IEnumerable <FeatureCover> covers, InterpretationsFactory interpretations, ContextPool context, ProbabilisticQAModule owner)
{
var coversCopy = covers.ToArray();
if (coversCopy.Length == 0)
{
throw new NotSupportedException("Cannot create InterpretationGenerator without feature covers");
}
Covers = coversCopy;
_interpretations = interpretations;
_context = context.Clone();
_owner = owner;
_topicSelector = interpretations.GetTopicSelector(owner.Graph);
if (_topicSelector.MoveNext())
{
//initialize constraint selector
_currentConstraintSelector = interpretations.GetConstraintSelector(owner.Graph, _topicSelector.SelectedNodes);
}
}
internal ContextPool CreateContextPoolCopy()
{
return(_context.Clone());
}