private static void SampleXor()
{
SigmaEnvironment sigma = SigmaEnvironment.Create("logical");
sigma.SetRandomSeed(0);
sigma.Prepare();
RawDataset dataset = new RawDataset("xor");
dataset.AddRecords("inputs", new[] { 0, 0 }, new[] { 0, 1 }, new[] { 1, 0 }, new[] { 1, 1 });
dataset.AddRecords("targets", new[] { 0 }, new[] { 0 }, new[] { 0 }, new[] { 1 });
ITrainer trainer = sigma.CreateTrainer("xor-trainer");
trainer.Network.Architecture = InputLayer.Construct(2) + FullyConnectedLayer.Construct(2) + FullyConnectedLayer.Construct(1) + OutputLayer.Construct(1) + SquaredDifferenceCostLayer.Construct();
trainer.TrainingDataIterator = new MinibatchIterator(1, dataset);
trainer.AddNamedDataIterator("validation", new UndividedIterator(dataset));
trainer.Optimiser = new GradientDescentOptimiser(learningRate: 0.1);
trainer.Operator = new CudaSinglethreadedOperator();
trainer.AddInitialiser("*.*", new GaussianInitialiser(standardDeviation: 0.05));
trainer.AddLocalHook(new StopTrainingHook(atEpoch: 10000));
trainer.AddLocalHook(new AccumulatedValueReporter("optimiser.cost_total", TimeStep.Every(1, TimeScale.Epoch), averageValues: true));
trainer.AddLocalHook(new AccumulatedValueReporter("optimiser.cost_total", TimeStep.Every(1, TimeScale.Stop), averageValues: true));
trainer.AddLocalHook(new ValueReporter("network.layers.*<external_output>._outputs.default.activations", TimeStep.Every(1, TimeScale.Stop)));
trainer.AddLocalHook(new ValueReporter("network.layers.*-fullyconnected.weights", TimeStep.Every(1, TimeScale.Stop)));
trainer.AddLocalHook(new ValueReporter("network.layers.*-fullyconnected.biases", TimeStep.Every(1, TimeScale.Stop)));
sigma.Run();
}
private static void SampleLoadExtractIterate()
{
SigmaEnvironment sigma = SigmaEnvironment.Create("test");
sigma.Prepare();
//var irisReader = new CsvRecordReader(new MultiSource(new FileSource("iris.data"), new UrlSource("http://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data")));
//IRecordExtractor irisExtractor = irisReader.Extractor("inputs2", new[] { 0, 3 }, "targets2", 4).AddValueMapping(4, "Iris-setosa", "Iris-versicolor", "Iris-virginica");
//irisExtractor = irisExtractor.Preprocess(new OneHotPreprocessor(sectionName: "targets2", minValue: 0, maxValue: 2), new NormalisingPreprocessor(sectionNames: "inputs2", minInputValue: 0, maxInputValue: 6));
ByteRecordReader mnistImageReader = new ByteRecordReader(headerLengthBytes: 16, recordSizeBytes: 28 * 28, source: new CompressedSource(new MultiSource(new FileSource("train-images-idx3-ubyte.gz"), new UrlSource("http://yann.lecun.com/exdb/mnist/train-images-idx3-ubyte.gz"))));
IRecordExtractor mnistImageExtractor = mnistImageReader.Extractor("inputs", new[] { 0L, 0L }, new[] { 28L, 28L }).Preprocess(new NormalisingPreprocessor(0, 255));
ByteRecordReader mnistTargetReader = new ByteRecordReader(headerLengthBytes: 8, recordSizeBytes: 1, source: new CompressedSource(new MultiSource(new FileSource("train-labels-idx1-ubyte.gz"), new UrlSource("http://yann.lecun.com/exdb/mnist/train-labels-idx1-ubyte.gz"))));
IRecordExtractor mnistTargetExtractor = mnistTargetReader.Extractor("targets", new[] { 0L }, new[] { 1L }).Preprocess(new OneHotPreprocessor(minValue: 0, maxValue: 9));
IComputationHandler handler = new CpuFloat32Handler();
ExtractedDataset dataset = new ExtractedDataset("mnist-training", ExtractedDataset.BlockSizeAuto, mnistImageExtractor, mnistTargetExtractor);
IDataset[] slices = dataset.SplitRecordwise(0.8, 0.2);
IDataset trainingData = slices[0];
IDataset validationData = slices[1];
MinibatchIterator trainingIterator = new MinibatchIterator(1, trainingData);
MinibatchIterator validationIterator = new MinibatchIterator(1, validationData);
while (true)
{
foreach (var block in trainingIterator.Yield(handler, sigma))
{
Thread.Sleep(100);
PrintFormattedBlock(block, PrintUtils.AsciiGreyscalePalette);
Thread.Sleep(1000);
}
}
//Random random = new Random();
//INDArray array = new ADNDArray<float>(3, 1, 2, 2);
//new GaussianInitialiser(0.05, 0.05).Initialise(array, Handler, random);
//Console.WriteLine(array);
//new ConstantValueInitialiser(1).Initialise(array, Handler, random);
//Console.WriteLine(array);
//dataset.InvalidateAndClearCaches();
}
private static void SampleIris()
{
SigmaEnvironment sigma = SigmaEnvironment.Create("iris");
sigma.SetRandomSeed(0);
sigma.Prepare();
IDataset dataset = Defaults.Datasets.Iris();
ITrainer trainer = sigma.CreateGhostTrainer("iris-trainer");
trainer.Network.Architecture = InputLayer.Construct(4)
+ FullyConnectedLayer.Construct(12)
+ FullyConnectedLayer.Construct(3)
+ OutputLayer.Construct(3)
+ SquaredDifferenceCostLayer.Construct();
//trainer.Network = Serialisation.ReadBinaryFileIfExists("iris.sgnet", trainer.Network);
trainer.TrainingDataIterator = new MinibatchIterator(50, dataset);
trainer.AddNamedDataIterator("validation", new UndividedIterator(dataset));
trainer.Optimiser = new GradientDescentOptimiser(learningRate: 0.06);
trainer.Operator = new CudaSinglethreadedOperator();
trainer.AddInitialiser("*.*", new GaussianInitialiser(standardDeviation: 0.1));
//trainer.AddGlobalHook(new StopTrainingHook(atEpoch: 100));
//trainer.AddLocalHook(new EarlyStopperHook("optimiser.cost_total", 20, target: ExtremaTarget.Min));
trainer.AddLocalHook(new AccumulatedValueReporter("optimiser.cost_total", TimeStep.Every(1, TimeScale.Epoch), reportEpochIteration: true));
//.On(new ExtremaCriteria("optimiser.cost_total", ExtremaTarget.Min)));
//trainer.AddLocalHook(new DiskSaviorHook<INetwork>("network.self", Namers.Dynamic("iris_epoch{0}.sgnet", "epoch"), verbose: true)
// .On(new ExtremaCriteria("optimiser.cost_total", ExtremaTarget.Min)));
trainer.AddHook(new MultiClassificationAccuracyReporter("validation", TimeStep.Every(1, TimeScale.Epoch), tops: 1));
trainer.AddHook(new StopTrainingHook(new ThresholdCriteria("shared.classification_accuracy_top1", ComparisonTarget.GreaterThanEquals, 0.98)));
trainer.AddLocalHook(new RunningTimeReporter(TimeStep.Every(599, TimeScale.Iteration), 128));
trainer.AddLocalHook(new RunningTimeReporter(TimeStep.Every(1, TimeScale.Epoch), 4));
//Serialisation.WriteBinaryFile(trainer, "trainer.sgtrainer");
//trainer = Serialisation.ReadBinaryFile<ITrainer>("trainer.sgtrainer");
sigma.AddTrainer(trainer);
sigma.AddMonitor(new HttpMonitor("http://+:8080/sigma/"));
sigma.PrepareAndRun();
}
private static void Main()
{
SigmaEnvironment.EnableLogging();
SigmaEnvironment sigma = SigmaEnvironment.Create("Sigma-MNIST");
// create a new mnist trainer
ITrainer trainer = CreateMnistTrainer(sigma);
// for the UI we have to activate more features
if (UI)
{
// create and attach a new UI framework
WPFMonitor gui = sigma.AddMonitor(new WPFMonitor("MNIST"));
// create a tab
gui.AddTabs("Overview");
// access the window inside the ui thread
gui.WindowDispatcher(window =>
{
// enable initialisation
window.IsInitializing = true;
// add a panel that controls the learning process
window.TabControl["Overview"].AddCumulativePanel(new ControlPanel("Control", trainer));
// create an accuracy cost that updates every iteration
var cost = new TrainerChartPanel <CartesianChart, LineSeries, TickChartValues <double>, double>("Cost", trainer, "optimiser.cost_total", TimeStep.Every(1, TimeScale.Iteration));
// improve the chart performance
cost.Fast();
// add the newly created panel
window.TabControl["Overview"].AddCumulativePanel(cost);
// finish initialisation
window.IsInitializing = false;
});
// the operators should not run instantly but when the user clicks play
sigma.StartOperatorsOnRun = false;
}
sigma.Prepare();
sigma.Run();
}
private static void Main()
{
SigmaEnvironment.EnableLogging();
SigmaEnvironment sigma = SigmaEnvironment.Create("sigma_demo");
// create a new mnist trainer
string name = DemoMode.Name;
ITrainer trainer = DemoMode.CreateTrainer(sigma);
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("network.layers.*.weights", (a, h) => h.Divide(h.Sum(a), a.Length), "shared.network_weights_average"));
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("network.layers.*.weights", (a, h) => h.StandardDeviation(a), "shared.network_weights_stddev"));
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("network.layers.*.biases", (a, h) => h.Divide(h.Sum(a), a.Length), "shared.network_biases_average"));
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("network.layers.*.biases", (a, h) => h.StandardDeviation(a), "shared.network_biases_stddev"));
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("optimiser.updates", (a, h) => h.Divide(h.Sum(a), a.Length), "shared.optimiser_updates_average"));
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("optimiser.updates", (a, h) => h.StandardDeviation(a), "shared.optimiser_updates_stddev"));
trainer.AddLocalHook(new MetricProcessorHook <INDArray>("network.layers.*<external_output>._outputs.default.activations", (a, h) => h.Divide(h.Sum(a), a.Length), "shared.network_activations_mean"));
// create and attach a new UI framework
WPFMonitor gui = sigma.AddMonitor(new WPFMonitor(name, DemoMode.Language));
gui.ColourManager.Dark = DemoMode.Dark;
gui.ColourManager.PrimaryColor = DemoMode.PrimarySwatch;
StatusBarLegendInfo iris = new StatusBarLegendInfo(name, MaterialColour.Blue);
StatusBarLegendInfo general = new StatusBarLegendInfo("General", MaterialColour.Grey);
gui.AddLegend(iris);
gui.AddLegend(general);
// create a tab
gui.AddTabs("Overview", "Metrics", "Validation", "Maximisation", "Reproduction", "Update");
// access the window inside the ui thread
gui.WindowDispatcher(window =>
{
// enable initialisation
window.IsInitializing = true;
window.TabControl["Metrics"].GridSize = new GridSize(2, 4);
window.TabControl["Validation"].GridSize = new GridSize(2, 5);
window.TabControl["Maximisation"].GridSize = new GridSize(2, 5);
window.TabControl["Reproduction"].GridSize = new GridSize(2, 5);
window.TabControl["Update"].GridSize = new GridSize(1, 1);
window.TabControl["Overview"].GridSize.Rows -= 1;
window.TabControl["Overview"].GridSize.Columns -= 1;
// add a panel that controls the learning process
window.TabControl["Overview"].AddCumulativePanel(new ControlPanel("Control", trainer), legend: iris);
ITimeStep reportTimeStep = DemoMode.Slow ? TimeStep.Every(1, TimeScale.Iteration) : TimeStep.Every(10, TimeScale.Epoch);
var cost1 = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Cost / Epoch", trainer, "optimiser.cost_total", TimeStep.Every(1, TimeScale.Epoch)).Linearify();
var cost2 = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Cost / Epoch", trainer, "optimiser.cost_total", reportTimeStep);
var weightAverage = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Mean of Weights / Epoch", trainer, "shared.network_weights_average", reportTimeStep, averageMode: true).Linearify();
var weightStddev = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Standard Deviation of Weights / Epoch", trainer, "shared.network_weights_stddev", reportTimeStep, averageMode: true).Linearify();
var biasesAverage = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Mean of Biases / Epoch", trainer, "shared.network_biases_average", reportTimeStep, averageMode: true).Linearify();
var biasesStddev = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Standard Deviation of Biases / Epoch", trainer, "shared.network_biases_stddev", reportTimeStep, averageMode: true).Linearify();
var updateAverage = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Mean of Parameter Updates / Epoch", trainer, "shared.optimiser_updates_average", reportTimeStep, averageMode: true).Linearify();
var updateStddev = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Standard Deviation of Parameter Updates / Epoch", trainer, "shared.optimiser_updates_stddev", reportTimeStep, averageMode: true).Linearify();
var outputActivationsMean = CreateChartPanel <CartesianChart, GLineSeries, GearedValues <double>, double>("Mean of Output Activations", trainer, "shared.network_activations_mean", reportTimeStep, averageMode: true).Linearify();
AccuracyPanel accuracy1 = null, accuracy2 = null;
if (DemoMode != DemoType.Wdbc && DemoMode != DemoType.Parkinsons)
{
accuracy1 = new AccuracyPanel("Validation Accuracy", trainer, DemoMode.Slow ? TimeStep.Every(1, TimeScale.Epoch) : reportTimeStep, null, 1, 2);
accuracy1.Fast().Linearify();
accuracy2 = new AccuracyPanel("Validation Accuracy", trainer, DemoMode.Slow ? TimeStep.Every(1, TimeScale.Epoch) : reportTimeStep, null, 1, 2);
accuracy2.Fast().Linearify();
}
IRegistry regTest = new Registry();
regTest.Add("test", DateTime.Now);
var parameter = new ParameterPanel("Parameters", sigma, window);
parameter.Add("Time", typeof(DateTime), regTest, "test");
ValueSourceReporter valueHook = new ValueSourceReporter(TimeStep.Every(1, TimeScale.Epoch), "optimiser.cost_total");
trainer.AddGlobalHook(valueHook);
sigma.SynchronisationHandler.AddSynchronisationSource(valueHook);
var costBlock = (UserControlParameterVisualiser)parameter.Content.Add("Cost", typeof(double), trainer.Operator.Registry, "optimiser.cost_total");
costBlock.AutoPollValues(trainer, TimeStep.Every(1, TimeScale.Epoch));
var learningBlock = (UserControlParameterVisualiser)parameter.Content.Add("Learning rate", typeof(double), trainer.Operator.Registry, "optimiser.learning_rate");
learningBlock.AutoPollValues(trainer, TimeStep.Every(1, TimeScale.Epoch));
var paramCount = (UserControlParameterVisualiser)parameter.Content.Add("Parameter count", typeof(long), trainer.Operator.Registry, "network.parameter_count");
paramCount.AutoPollValues(trainer, TimeStep.Every(1, TimeScale.Start));
window.TabControl["Overview"].AddCumulativePanel(cost1, 1, 2, legend: iris);
window.TabControl["Overview"].AddCumulativePanel(parameter);
//window.TabControl["Overview"].AddCumulativePanel(accuracy1, 1, 2, legend: iris);
//window.TabControl["Metrics"].AddCumulativePanel(cost2, legend: iris);
//window.TabControl["Metrics"].AddCumulativePanel(weightAverage, legend: iris);
//window.TabControl["Metrics"].AddCumulativePanel(biasesAverage, legend: iris);
window.TabControl["Update"].AddCumulativePanel(updateAverage, legend: iris);
if (accuracy2 != null)
{
window.TabControl["Metrics"].AddCumulativePanel(accuracy2, legend: iris);
}
window.TabControl["Metrics"].AddCumulativePanel(weightStddev, legend: iris);
window.TabControl["Metrics"].AddCumulativePanel(biasesStddev, legend: iris);
window.TabControl["Metrics"].AddCumulativePanel(updateStddev, legend: iris);
window.TabControl["Metrics"].AddCumulativePanel(outputActivationsMean, legend: iris);
if (DemoMode == DemoType.Mnist)
{
NumberPanel outputpanel = new NumberPanel("Numbers", trainer);
DrawPanel drawPanel = new DrawPanel("Draw", trainer, 560, 560, 20, outputpanel);
window.TabControl["Validation"].AddCumulativePanel(drawPanel, 2, 3);
window.TabControl["Validation"].AddCumulativePanel(outputpanel, 2);
window.TabControl["Validation"].AddCumulativePanel(weightAverage);
window.TabControl["Validation"].AddCumulativePanel(biasesAverage);
for (int i = 0; i < 10; i++)
{
window.TabControl["Maximisation"].AddCumulativePanel(new MnistBitmapHookPanel($"Target Maximisation {i}", i, trainer, TimeStep.Every(1, TimeScale.Epoch)));
}
}
if (DemoMode == DemoType.TicTacToe)
{
window.TabControl["Overview"].AddCumulativePanel(new TicTacToePanel("Play TicTacToe!", trainer));
}
//for (int i = 0; i < 10; i++)
//{
// window.TabControl["Reproduction"].AddCumulativePanel(new MnistBitmapHookPanel($"Target Maximisation 7-{i}", 8, 28, 28, trainer, TimeStep.Every(1, TimeScale.Start)));
//}
});
if (DemoMode == DemoType.Mnist)
{
sigma.AddMonitor(new HttpMonitor("http://+:8080/sigma/"));
}
// the operators should not run instantly but when the user clicks play
sigma.StartOperatorsOnRun = false;
sigma.Prepare();
sigma.RunAsync();
gui.WindowDispatcher(window => window.IsInitializing = false);
}