/// <summary>
/// Propogates input through network (FeedForward). Updates example.predictions.
/// </summary>
public void PropogateInput(Example example)
{
AssertValidFeatures(example);
Neuron.UnfeedAll(Neurons);
int feature = 0;
foreach (Neuron neuron in Inputs)
{
neuron.Value = example.Features[feature++];
neuron.Fed = true;
}
foreach (Neuron neuron in Constants)
{
neuron.Value = 1;
neuron.Fed = true;
}
foreach (Neuron neuron in Neurons)
{
recur_FeedForward(neuron);
}
example.Predictions = Outputs.Select(o => o.Value).ToList();
}
private void PropogateErrors(Example example)
{
AssertValidLabels(example);
Neuron.UnfeedAll(Neurons);
int label = 0;
foreach (Neuron neuron in Outputs)
{
neuron.UpdateErrorTerm(example.Labels[label++]);
neuron.Fed = true;
}
foreach (Neuron neuron in Neurons)
{
recur_BackPropogation(neuron);
}
}