internal QuestionEntry GetQuestionEntry(ParsedUtterance question)
{
QuestionEntry entry;
if (!_questions.TryGetValue(question.OriginalSentence, out entry))
{
_questions[question.OriginalSentence] = entry = new QuestionEntry(question.OriginalSentence, Graph);
var pattern = getPatternQuestion(entry);
List <QuestionEntry> patternQuestions;
if (!_questionsPatternIndex.TryGetValue(pattern, out patternQuestions))
{
_questionsPatternIndex[pattern] = patternQuestions = new List <QuestionEntry>();
}
patternQuestions.Add(entry);
}
return(entry);
}
private string getPatternQuestion(QuestionEntry question)
{
var builder = new StringBuilder();
foreach (var word in question.ParsedQuestion.Words)
{
if (builder.Length > 0)
{
builder.Append(' ');
}
if (Graph.HasEvidence(word))
{
builder.Append("#");
}
else
{
builder.Append(word);
}
}
return(builder.ToString());
}
private IEnumerable <QuestionEntry> getPatternEquivalentEntries(QuestionEntry entry)
{
var pattern = getPatternQuestion(entry);
return(_questionsPatternIndex[pattern]);
}
private bool updatePushPart(QuestionEntry questionEntry, PoolHypothesis hypothesis, ContextPool pool)
{
pool = pool.Clone();
if (!questionEntry.IsContextFree)
{
//TODO: we are now not able to learn this
return(false);
}
pool.ClearAccumulator();
//we don't need substitute anything - we ran rules with original nodes only
pool.SetSubstitutions(null);
var pushActions = new List <PushAction>();
var insertActions = new List <InsertAction>();
//traverse all entries and collect all update/insert rules, that will
//cover every correct answer
var equivalentEntries = getPatternEquivalentEntries(questionEntry);
var correctAnswers = new HashSet <NodeReference>();
foreach (var entry in equivalentEntries)
{
if (!entry.HasAnswer)
{
continue;
}
if (!pool.ContainsInAccumulator(entry.CorrectAnswer))
{
var action = createPushAction(entry.Question, entry.CorrectAnswer);
if (action == null)
{
//we cannot derive push rule
insertActions.Add(new InsertAction(entry.CorrectAnswer));
pool.Insert(entry.CorrectAnswer);
}
else
{
//we have got push rule - we will apply it without constraining and filtering
action.Run(pool);
if (entry.QuestionNodes.Count != hypothesis.Substitutions.OriginalNodes.Count)
{
//TODO we are not able to update this for now
return(false);
}
action = action.Resubstitution(entry.QuestionNodes, hypothesis.Substitutions.OriginalNodes);
pushActions.Add(action);
}
correctAnswers.Add(entry.CorrectAnswer);
}
}
hypothesis.ActionBlock.UpdatePush(pushActions);
hypothesis.ActionBlock.UpdateInsert(insertActions);
foreach (var node in pool.ActiveNodes)
{
//TODO detection of inclusion collision in filter
var isCorrect = correctAnswers.Contains(node);
hypothesis.ActionBlock.OutputFilter.Advice(node, isCorrect);
}
return(true);
}
internal AnswerReport(QuestionEntry question, NodeReference answer)
{
Question = question;
Answer = answer;
}