Question

我正在尝试进行基本的神经网络仿真。它由神经元和神经元连接组成。在下面的代码中，每当神经元1的值更新时，神经元2的值都应更改：

public class Main {

    public static void main(String[] args) {
        Neuron neuron1 = new Neuron();
        Neuron neuron2 = new Neuron();

        NeuronConnection neuronConnection = new NeuronConnection(neuron1, neuron2);

        neuron1.addInput(20);
        System.out.println(neuron2.getOutput());
    }
}

现在，我只得到默认值“ 0”。

以下是Neuron和NeuronConncetion对象的代码：

public class Neuron {
    private double output;
    private List<Double> inputArray;

    public Neuron() {
        output = 0;
        inputArray = new LinkedList<>();
    }

    public Neuron (double input) {
        inputArray = new LinkedList<>();
        inputArray.add(input);
        output += input;
    }

    public void addInput(double input) {
        inputArray.add(input);
        output += input;
    }

    public void addMultipleInputs(List<Double> inputs) {
        inputArray.addAll(inputs);
        for (double input: inputs) {
            output += input;
        }
    }

    public double getOutput() {
        return output;
    }
}

public class NeuronConnection {
    private double weight;
    private Neuron inNeuron;
    private Neuron outNeuron;
    private double outValue;

    public NeuronConnection(Neuron inNeuron, Neuron outNeuron) {
        this.inNeuron = inNeuron;
        this.outNeuron = outNeuron;
        weight = Math.random();
        outValue = inNeuron.getOutput()*weight;
        outNeuron.addInput(outValue);
    }

    public double getOutValue() {
        return outValue;
    }
}

问题是：每当我更改Neuron1的输入时，如何使Neuron2更改其值？

Answer 1

我正在为您提供一个简单的解决方案。您只需要在NeuronConnection类中保留对Neuron的引用，并添加方法setConnection（）并从{调用NeuronConnection's update() method（稍后将在NeuronConnection中添加） addInput()的{1}}或addMultipleInputs()方法。 Neuron class类的新设计：

Neuron

现在，重新设计您的public class Neuron { private NeuronConnection conn; private double output; private List<Double> inputArray; public Neuron() { output = 0; inputArray = new LinkedList<>(); } public Neuron (double input) { inputArray = new LinkedList<>(); inputArray.add(input); output += input; } public void addInput(double input) { inputArray.add(input); output += input; conn.update(); } public void addMultipleInputs(List<Double> inputs) { inputArray.addAll(inputs); for (double input: inputs) { output += input; } conn.update(); } public double getOutput() { return output; } // i've added this method public void setConnection(NeuronConnection conn) { this.conn = conn; } }类：

NeuronConnection

现在，主班级没有变化...

public class NeuronConnection {
    private double weight;
    private Neuron inNeuron;
    private Neuron outNeuron;
    private double outValue;

    public NeuronConnection(Neuron inNeuron, Neuron outNeuron) {
        this.inNeuron = inNeuron;
        this.outNeuron = outNeuron;

        // now, setConnection
        this.inNeuron.setConnection(this);
        this.outNeuron.setConnection(this);

        weight = Math.random();
        outValue = inNeuron.getOutput()*weight;
        outNeuron.addInput(outValue);
    }

    public double getOutValue() {
        return outValue;
    }

    // i've added this
    public void update() {
      // this calculation is little flawed
      // you've to edit/fix this as you think it will be
      // perfect for your neural network
      outValue = inNeuron.getOutput() * weight;
      outNeuron.addInput(outValue);
    }
}

我还没有测试代码，但是它应该让您走上正确的路...

让我知道，如果您有任何问题...

如何在Java中根据其他对象的值更改使对象更新其值？

1 个答案: