private Coord GetNearestNeighbour(Coord coord)
{
double minDistance = double.PositiveInfinity;
Coord nearest = new Coord(250, 250, 0);
foreach (Coord seenCoord in seen)
{
double distance = metric.GetDistance(seenCoord, coord);
if (distance < minDistance && distance != 0)
{
minDistance = distance;
nearest = seenCoord;
}
}
return(nearest);
}
public static string guesLabel(IMetric metric, int k, List <ProcessedArticle> trainingArticles, ProcessedArticle articleToLabel)
{
List <ProcessedArticle> knn = trainingArticles.OrderBy(a => metric.GetDistance(a.getFeatureVector(), articleToLabel.getFeatureVector())).ToList();
return(knn.Take(k).GroupBy(a => a.label).OrderBy(g => g.Count()).Last().Key);
}