/// <summary>
/// Create an activation function object
/// </summary>
/// <param name="type"> The type of the activation function </param>
/// <returns> An instant of an activation function object </returns>
public static AActivationFunction CreateActivationFnCLass(ActivationType type)
{
AActivationFunction _activationFunction = null;
Assembly assembly = Assembly.GetCallingAssembly();
Type[] types = assembly.GetTypes();
for (int i = 0; i < types.Length; i++)
{
if (types[i].IsSubclassOf(typeof(AActivationFunction)) && types[i].Name == type.ToString())
{
_activationFunction = (AActivationFunction)System.Activator.CreateInstance(types[i]);
break;
}
}
if (_activationFunction == null)
{
throw new ArgumentNullException("Activation Function ( Type not found )");
}
return(_activationFunction);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
/// /// <summary>
/// Constructor of ANN
/// </summary>
/// <param name="classId">Identification of a class label</param>
public ANN(int classId)
{
this._class_id = classId;
this._previousError = _threshold = 0.1;//double.Epsilon;
this._hiddenLayers = new ArrayList();
this._inputVector = new ArrayList();
this._graphPoints = new ArrayList();
this._minimum = -0.5;
this._maximum = 0.5;
this._learningRate = 0.9;
this._momentum = 1;
this._errorFn = 2;
this._activationFnType = ActivationType.Sigmoud;
this._activationFunction = CreateActivationFunction.CreateActivationFnCLass( this._activationFnType );
}