/// <summary>
///
/// </summary>
/// <param name="x"></param>
/// <param name="type"></param>
/// <returns></returns>
public static SVMNode[] Normalize(SVMNode[] x, SVMNormType type)
{
double norm_l = (double)(int)type;
double norm = x.Sum(a => Math.Pow(a.Value, norm_l));
norm = Math.Pow(norm, 1 / norm_l);
SVMNode[] y = x.Select(a => new SVMNode(a.Index, a.Value / norm)).ToArray();
return y;
}
/// <summary>
///
/// </summary>
/// <param name="x"></param>
/// <param name="type"></param>
/// <returns></returns>
public static SVMNode[] Normalize(SVMNode[] x, SVMNormType type)
{
double norm_l = (double)(int)type;
double norm = x.Sum(a => Math.Pow(a.Value, norm_l));
norm = Math.Pow(norm, 1 / norm_l);
SVMNode[] y = x.Select(a => new SVMNode(a.Index, a.Value / norm)).ToArray();
return(y);
}
/// <summary>
///
/// </summary>
/// <param name="problem"></param>
/// <param name="type"></param>
/// <returns></returns>
public static SVMProblem Normalize(SVMProblem problem, SVMNormType type)
{
SVMProblem temp = new SVMProblem();
for (int i = 0; i < problem.Length; i++)
{
SVMNode[] x = SVMNodeHelper.Normalize(problem.X[i], type);
temp.Add(x, problem.Y[i]);
}
return temp;
}
/// <summary>
///
/// </summary>
/// <param name="problem"></param>
/// <param name="type"></param>
/// <returns></returns>
public static SVMProblem Normalize(SVMProblem problem, SVMNormType type)
{
SVMProblem temp = new SVMProblem();
for (int i = 0; i < problem.Length; i++)
{
SVMNode[] x = SVMProblemHelper.Normalize(problem.X[i], type);
temp.Add(x, problem.Y[i]);
}
return(temp);
}
public static SVMNode[] Normalize(this SVMNode[] x, SVMNormType type)
{
return(SVMNodeHelper.Normalize(x, type));
}
public static SVMProblem Normalize(this SVMProblem problem, SVMNormType type)
{
return(SVMProblemHelper.Normalize(problem, type));
}
public static SVMNode[] Normalize(this SVMNode[] x, SVMNormType type)
{
return SVMNodeHelper.Normalize(x, type);
}
public static SVMProblem Normalize(this SVMProblem problem, SVMNormType type)
{
return SVMProblemHelper.Normalize(problem, type);
}
