public void Learn()
        {
            List <int>    usedInputs     = new List <int>();
            List <double> currentOutputs = new List <double>();

            int era = 0;

            do
            {
                usedInputs.Clear();
                currentOutputs.Clear();

                for (int i = 0; i < networkData.Inputs.Count; i++)
                {
                    int currentInput;

                    do
                    {
                        currentInput = RandomHelper.GetRandomInRange(0, networkData.Inputs.Count);
                    } while (usedInputs.Contains(currentInput));

                    usedInputs.Add(currentInput);

                    int k = 0;

                    foreach (Neuron neuron in layers.getInputLayer().getNeurons())
                    {
                        neuron.setOutput(networkData.Inputs[currentInput][k++]);
                    }

                    sumWeightsAndActivate();
                    calculateSignalErrors(networkData.ExpectedOutputs[currentInput]);
                    updateWeights();

                    foreach (Neuron neuron in layers.getOutputLayer().getNeurons())
                    {
                        currentOutputs.Add(neuron.getOutput());
                    }

                    networkData.ActualOutputs.Add(currentInput, currentOutputs);
                }

                updateOverallError();

                SingleEraEnded?.Invoke(new SingleEraData()
                {
                    CurrentEra     = era,
                    OverallError   = networkData.OverallError,
                    LearnProgress  = (era + 1d) / networkConfiguration.MaxEras,
                    PercentOfError = (networkConfiguration.MinError / networkData.OverallError * 100)
                });

                era++;
            } while (era < networkConfiguration.MaxEras && networkData.OverallError > networkConfiguration.MinError);
        }
Ejemplo n.º 2
0
        public void Learn()
        {
            int era = 0;

            Random r = new Random();

            do
            {
                foreach (int currentInput in Enumerable.Range(0, networkData.Inputs.Count).OrderBy(x => r.Next()))
                {
                    int k = 0;

                    foreach (Neuron neuron in layers.getInputLayer().getNeurons())
                    {
                        neuron.setOutput(networkData.Inputs[currentInput][k++]);
                    }

                    sumWeightsAndActivate();
                    calculateSignalErrors(networkData.ExpectedOutputs[currentInput]);
                    updateWeights();

                    List <double> currentOutputs = new List <double>();

                    foreach (Neuron neuron in layers.getOutputLayer().getNeurons())
                    {
                        currentOutputs.Add(neuron.getOutput());
                    }

                    networkData.ActualOutputs[currentInput] = new List <double>(currentOutputs);
                }

                updateOverallError();

                SingleEraEnded?.Invoke(new SingleEraData()
                {
                    CurrentEra     = era,
                    OverallError   = networkData.OverallError,
                    LearnProgress  = (era + 1d) / networkConfiguration.MaxEras,
                    PercentOfError = (networkConfiguration.MinError / networkData.OverallError * 100)
                });

                era++;
            } while (era < networkConfiguration.MaxEras && networkData.OverallError > networkConfiguration.MinError);
        }