Threaded learning and signaling in the Qt UI
parent
c9fb9b9fa8
commit
6943fc0116
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@ -24,7 +24,7 @@ void Layer::setOutputValues(const std::vector<double> & outputValues)
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void Layer::feedForward(const Layer &inputLayer)
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{
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for (int neuronNumber = 0; neuronNumber < sizeWithoutBiasNeuron(); ++neuronNumber)
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for (size_t neuronNumber = 0; neuronNumber < sizeWithoutBiasNeuron(); ++neuronNumber)
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{
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at(neuronNumber).feedForward(inputLayer.getWeightedSum(neuronNumber));
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}
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@ -13,8 +13,19 @@ TEMPLATE = app
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SOURCES += main.cpp\
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neuroui.cpp
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neuroui.cpp \
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../../Layer.cpp \
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../../Net.cpp \
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../../Neuron.cpp \
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netlearner.cpp
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HEADERS += neuroui.h
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HEADERS += neuroui.h \
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../../Layer.h \
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../../Net.h \
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../../Neuron.h \
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netlearner.h
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FORMS += neuroui.ui
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RESOURCES += \
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icons.qrc
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@ -0,0 +1,2 @@
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<RCC/>
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@ -0,0 +1,65 @@
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#include "netlearner.h"
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#include "../../Net.h"
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void NetLearner::run()
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{
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try
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{
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Net myNet({2, 3, 1});
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size_t batchSize = 5000;
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size_t batchIndex = 0;
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double batchMaxError = 0.0;
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double batchMeanError = 0.0;
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size_t numIterations = 1000000;
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for (size_t iteration = 0; iteration < numIterations; ++iteration)
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{
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std::vector<double> inputValues =
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{
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std::rand() / (double)RAND_MAX,
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std::rand() / (double)RAND_MAX
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};
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std::vector<double> targetValues =
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{
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(inputValues[0] + inputValues[1]) / 2.0
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};
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myNet.feedForward(inputValues);
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std::vector<double> outputValues = myNet.getOutput();
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double error = outputValues[0] - targetValues[0];
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batchMeanError += error;
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batchMaxError = std::max<double>(batchMaxError, error);
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if (batchIndex++ == batchSize)
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{
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QString logString;
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logString.append("Batch error (");
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logString.append(QString::number(batchSize));
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logString.append(" iterations, max/mean): ");
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logString.append(QString::number(std::abs(batchMaxError)));
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logString.append(" / ");
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logString.append(QString::number(std::abs(batchMeanError / batchSize)));
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emit logMessage(logString);
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batchIndex = 0;
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batchMaxError = 0.0;
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batchMeanError = 0.0;
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}
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myNet.backProp(targetValues);
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}
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}
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catch (std::exception &ex)
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{
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QString logString("Error: ");
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logString.append(ex.what());
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emit logMessage(logString);
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}
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}
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@ -0,0 +1,17 @@
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#ifndef NETLEARNER_H
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#define NETLEARNER_H
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#include <QThread>
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class NetLearner : public QThread
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{
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Q_OBJECT
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private:
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void run() Q_DECL_OVERRIDE;
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signals:
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void logMessage(const QString &logMessage);
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};
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#endif // NETLEARNER_H
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@ -12,3 +12,36 @@ NeuroUI::~NeuroUI()
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{
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delete ui;
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}
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void NeuroUI::on_runButton_clicked()
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{
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ui->logView->clear();
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if (m_netLearner == nullptr)
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{
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m_netLearner.reset(new NetLearner);
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}
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connect(m_netLearner.get(), &NetLearner::logMessage, this, &NeuroUI::logMessage);
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connect(m_netLearner.get(), &NetLearner::started, this, &NeuroUI::netLearnerStarted);
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connect(m_netLearner.get(), &NetLearner::finished, this, &NeuroUI::netLearnerFinished);
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m_netLearner->start();
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}
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void NeuroUI::logMessage(const QString &logMessage)
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{
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ui->logView->addItem(logMessage);
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ui->logView->scrollToBottom();
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}
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void NeuroUI::netLearnerStarted()
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{
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ui->runButton->setEnabled(false);
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}
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void NeuroUI::netLearnerFinished()
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{
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ui->runButton->setEnabled(true);
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}
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@ -3,18 +3,31 @@
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#include <QMainWindow>
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#include <memory>
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#include "netlearner.h"
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namespace Ui {
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class NeuroUI;
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class NeuroUI;
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}
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class NeuroUI : public QMainWindow
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{
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Q_OBJECT
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private:
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std::unique_ptr<NetLearner> m_netLearner;
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public:
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explicit NeuroUI(QWidget *parent = 0);
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~NeuroUI();
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private slots:
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void on_runButton_clicked();
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void logMessage(const QString &logMessage);
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void netLearnerStarted();
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void netLearnerFinished();
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private:
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Ui::NeuroUI *ui;
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};
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@ -6,8 +6,8 @@
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<rect>
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<x>0</x>
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<y>0</y>
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<width>400</width>
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<height>300</height>
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<width>597</width>
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<height>389</height>
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</rect>
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</property>
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<property name="windowTitle">
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@ -16,22 +16,19 @@
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<widget class="QWidget" name="centralWidget">
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<layout class="QVBoxLayout" name="verticalLayout_2">
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<item>
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<widget class="QListView" name="logView"/>
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<widget class="QListWidget" name="logView"/>
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</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout">
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<item>
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<spacer name="horizontalSpacer">
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<property name="orientation">
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<enum>Qt::Horizontal</enum>
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<widget class="QProgressBar" name="progressBar">
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<property name="value">
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<number>0</number>
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</property>
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<property name="sizeHint" stdset="0">
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<size>
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<width>40</width>
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<height>20</height>
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</size>
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<property name="textVisible">
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<bool>false</bool>
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</property>
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</spacer>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="runButton">
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