public double Compare(DocumentVector x, DocumentVector y)
{
DocumentVector vector1 = (DocumentVector)x;
DocumentVector vector2 = (DocumentVector)y;
double total = 0;
for (int i = 0; i < vector1.Vector.Length; i++)
total += Math.Pow(vector1.Vector[i] - vector2.Vector[i], 2);
return -1*Math.Sqrt(total);
}
public double Compare(DocumentVector vector1, DocumentVector vector2)
{
double total = 0;
for (int i = 0; i < vector1.Vector.Length; i++)
{
total += Math.Abs(vector1.Vector[i] - vector2.Vector[i]);
}
return -1*total;
}
public double Compare(DocumentVector x, DocumentVector y)
{
DocumentVector vector1 = (DocumentVector)x;
DocumentVector vector2 = (DocumentVector)y;
double total = 0;
for (int i = 0; i < vector1.Vector.Length; i++)
total += vector1.Vector[i] * vector2.Vector[i];
double den = vector1.Vector.Size * vector2.Vector.Size;
return (den==0)? 0 : total/den;
}
public LabeledDocumentVector(DocumentVector Document, String Classification)
{
this.Document = Document;
this.Classification = Classification;
}
