public Pair <string, double>[] GetTopVectorItems(string vectorName, int n, BowSpace bowSpc) { SparseVector <double> vec = mFeatureVectors[vectorName]; return(vec .OrderByDescending(x => x.Dat) .Take(n) .Select(x => new Pair <string, double>(bowSpc.Words[x.Idx].Stem, x.Dat)) .ToArray()); }