public static double EuclideanSimilarity(ReviewPoint p1, ReviewPoint p2) { return(1 / (1 + Euclidean(p1, p2))); }
public static double Euclidean(ReviewPoint p1, ReviewPoint p2) { return(Math.Sqrt(Math.Pow(p1.GenreId - p2.GenreId, 2) + Math.Pow(p1.NumberOfReviews - p2.NumberOfReviews, 2))); }