/// <summary>
/// Generates a correctness score based on a set of keywords.
/// </summary>
/// <param name="scoredStatements"></param>
/// <param name="keywords"></param>
/// <returns></returns>
public static double ScoreFromKeywords(this string answer, IEnumerable <string> keywords)
{
var answerKeywords = WebSearchHelper.SplitSenteceToKeywords(answer);
double amountCorrect = 0;
foreach (string keyword in keywords)
{
if (answerKeywords.Contains(keyword))
{
amountCorrect++;
}
}
return(amountCorrect / keywords.Count());
}
/// <summary>
/// Invokes the vectorization/ web search with a question.
/// </summary>
/// <param name="question">Question being asked</param>
/// <returns>Vectorized answers</returns>
public Dictionary <string, double> Invoke(string question)
{
string domainRootUrl = SearchDomain.GenerateRootUrl(question);
var searchDomainDocument = new DocumentNodeSelector(domainRootUrl);
var documentLinks = searchDomainDocument
.FindAllLinks()
.Select(link => SearchDomain.ParseSearchUrl(link))
.Where(link => link != null)
.Distinct()
.ToList();
documentLinks // resize the links
.RemoveRange(SearchSettings.MaxLinks, documentLinks.Count - SearchSettings.MaxLinks);
var originalKeywords = WebSearchHelper.SplitSenteceToKeywords(question);
var paragraphs = _generateParagraphsFromLinks(documentLinks);
var scoredKeywords = _createScoredKeywords(paragraphs, originalKeywords);
return(_createScoredStatements(paragraphs, scoredKeywords));
}