/// <summary>
/// Compare this neural network with another.
/// To be equal it must have the same structure and matrix values.
/// </summary>
/// <param name="other">The other neural network.</param>
/// <returns>True if the neural networks are equal.</returns>
public bool Equals(FeedforwardNetwork other)
{
int i = 0;
foreach (FeedforwardLayer layer in _layers)
{
FeedforwardLayer otherLayer = other.Layers[i++];
if (layer.NeuronCount != otherLayer.NeuronCount)
{
return(false);
}
if ((layer.LayerMatrix == null) && (otherLayer.LayerMatrix != null))
{
return(false);
}
if ((layer.LayerMatrix != null) && (otherLayer.LayerMatrix == null))
{
return(false);
}
if ((layer.LayerMatrix != null) && (otherLayer.LayerMatrix != null))
{
if (!layer.LayerMatrix.Equals(otherLayer.LayerMatrix))
{
return(false);
}
}
}
return(true);
}
/// <summary>
/// Clone the structure of this neural network.
/// </summary>
/// <returns>A cloned copy of the structure of the neural network.</returns>
public FeedforwardNetwork CloneStructure()
{
FeedforwardNetwork result = new FeedforwardNetwork();
foreach (FeedforwardLayer layer in _layers)
{
FeedforwardLayer cloned = new FeedforwardLayer(layer.NeuronCount);
result.AddLayer(cloned);
}
return(result);
}
/// <summary>
/// Prune one of the neurons from this layer.
/// Remove all entries in this weight matrix and other layers.
/// </summary>
/// <param name="neuron">The neuron to prune. Zero specifies the first neuron.</param>
public void Prune(int neuron)
{
if (_matrix != null) //Delete a row on this matris
{
LayerMatrix = MatrixMath.DeleteRow(_matrix, neuron);
}
FeedforwardLayer previous = PreviousLayer;
if (previous.LayerMatrix != null) //Delete a column on the previous
{
previous.LayerMatrix = MatrixMath.DeleteColumn(previous.LayerMatrix, neuron);
}
}
/// <summary>
/// Add a layer to this neural network.
/// </summary>
/// <param name="layer">The layer to add.</param>
public void AddLayer(FeedforwardLayer layer)
{
if (_outputLayer != null)
{
layer.PreviousLayer = _outputLayer;
_outputLayer.NextLayer = layer;
}
if (_layers.Count == 0)
{
_inputLayer = _outputLayer = layer;
}
else
{
_outputLayer = layer;
}
_layers.Add(layer);
}
