我使用Encog框架与Java来执行图像识别系统。尽管如此,当我将降采样宽度和高度设置为100以上时,我在尝试创建网络时得到了一个Encog输入图层大小限制
java.lang.NegativeArraySizeException
。
输入图层中的神经元数量是否有限制?
public class PlateNetwork {
protected final List<RawImage> imageList;
protected ImageMLDataSet imageMLDataSet;
protected Downsample downsample;
protected Size downsampleSize;
protected int outputLayerSize;
protected BasicNetwork network;
public PlateNetwork() {
imageList = new ArrayList<>();
outputLayerSize = Neuron.getTotalNeurons();
downsample = new SimpleIntensityDownsample();
downsampleSize = new Size(200, 150);
imageMLDataSet = new ImageMLDataSet(downsample, false, 1, -1);
}
public void processNN() {
inputImages();
createNetwork();
initTraining();
}
private void inputImages() {
RawImage rawImage;
File[] inputImages = Global.inputFolder.listFiles();
int inputLength = inputImages.length;
for (int i = 0; i < inputLength; i++) {
rawImage = new RawImage(inputImages[i], Neuron.BOL_PLATE);
imageList.add(rawImage);
imageMLDataSet.add(rawImage.getImageMLData(), rawImage.getIdeal());
}
}
private void createNetwork() {
final int inputLayerSize = downsampleSize.getArea();
final int hiddenLayerSize = (inputLayerSize + outputLayerSize) * 2/3;
final int hiddenLayer1Neurons = hiddenLayerSize;
final int hiddenLayer2Neurons = hiddenLayerSize;
imageMLDataSet.downsample(downsampleSize.getHeight(), downsampleSize.getWidth());
network = EncogUtility.simpleFeedForward(imageMLDataSet.getInputSize(),
hiddenLayer1Neurons,
hiddenLayer2Neurons,
imageMLDataSet.getIdealSize(),
true);
}
private void initTraining() {
final int trainingMinutes = 1;
final double strategyError = 0.25;
final int strategyCycles = 50;
final ResilientPropagation train = new ResilientPropagation(network, imageMLDataSet);
train.addStrategy(new ResetStrategy(strategyError, strategyCycles));
EncogUtility.trainConsole(train, network, imageMLDataSet, trainingMinutes);
System.out.println("Training Stopped...");
}
}
即使它一直有用我仍然有问题。我确保没有输入图像小于下采样目标大小。 – 2014-12-12 02:34:48
我已经更新了包含我的代码的问题,好像EncogUtility.simpleFeedForward是引发错误的函数。 – 2014-12-12 02:36:56
只是为了澄清网络有30000输入神经元,但只有1输出神经元 – 2014-12-12 02:37:50