public void TestMlpTrainingWthResilientPropPerformance()
{
using (wr = new StreamWriter(@"test.log", true, System.Text.Encoding.ASCII, 1024))
{
try
{
// Build network model
uint[] hlayers = new uint[1];
hlayers[0] = 4;
Build(3, 1, hlayers, 1);
wr.WriteLine("-> Test network performance for parity problem with rprop");
double targetError = 0.05;
uint epochs = 10000;
mlpNetwork.InstantiateResilientPropagationAlgorithm(targetError, epochs);
mlpNetwork.BuildStatsListener();
Task <bool> trainResult = mlpNetwork.TrainingAsync(parityInput, parityOutput, targetError);
DateTime start = DateTime.Now;
while (!trainResult.IsCompleted)
{
List <double[][]> output = mlpNetwork.GetOutputValues();
//wr.WriteLine("[" + (DateTime.Now-start).Milliseconds.ToString() + " ms] Output {0}", string.Join(";", output));
Thread.Sleep(2);
}
if (!trainResult.Result)
{
wr.WriteLine("-> Network training fail");
}
else
{
wr.WriteLine("-> Network trained! [Error: {0}, Epochs: {1}]", mlpNetwork.CurrentError, mlpNetwork.EpochsTraining);
wr.WriteLine("-> Validation:");
int i = 0;
foreach (double[] pattern in parityInputValidation)
{
double[] output = mlpNetwork.Exec(pattern);
wr.WriteLine("-> Input: " + pattern[0] + " " + pattern[1]);
wr.WriteLine("-> Output: " + output[0] + " (ideal: " + parityOutput[i++][0] + ")");
}
wr.WriteLine("-> Validation end");
}
} catch (Exception e)
{
wr.WriteLine(e.Message + Environment.NewLine + e.StackTrace);
}
}
}
public bool Validate(double[][] inValPatterns, double[][] outValPatterns)
{
status = NetworkStatus.VALIDATION;
bool res = false;
try
{
double eErr = 0;
double pErr = 0;
for (int i = 0; i < inValPatterns.Count(); i++)
{
double[] output = network.Exec(inValPatterns[i]);
pErr = 0;
for (int j = 0; j < output.Count(); j++)
{
pErr += Math.Pow(outValPatterns[i][j] - output[j], 2);
}
pErr *= (1.0 / Convert.ToDouble(outValPatterns[i].Count()));
eErr += pErr;
}
eErr *= (1.0 / Convert.ToDouble(inValPatterns.Count()));
res = (eErr <= errorTarget);
if (res)
{
status = NetworkStatus.VALIDATED;
}
} catch (Exception e)
{
status = NetworkStatus.ERROR;
logger.ErrorFormat(ExceptionManager.Parse(e) + Environment.NewLine + e.StackTrace);
}
return(res);
}