node.java

bp神经网络算法的java实现（原创）： 本程序为原创

package ann;


public class Node implements java.io.Serializable,Cloneable {
  public double activation;
  public double threshold;
  public double weights[];
  public double detweightslast[];
  public double detthresholdlast;
  public double error;
  public int numOfweights;
  public double amultinum;

  public ArrayList arWeight=new ArrayList();

  public Node() {
    activation = 0;
    error = 0;
    threshold = 0;
    amultinum = 1;
  }

  public Node(int numOfweights0) {
    amultinum = 1;
    numOfweights = numOfweights0;
    weights = new double[numOfweights];
    detweightslast = new double[numOfweights];
    detthresholdlast = 0;
    error = 0;
    int i;
    for (i = 0; i < numOfweights; i++) {
      weights[i] = (2 * Math.random() - 1) * amultinum;
      detweightslast[i] = 0;
    }
    threshold = (2 * Math.random() - 1) * amultinum;
  }

  public Node(double act, double thr, int numOfweights0) {
    amultinum = 1;
    numOfweights = numOfweights0;
    activation = act;
    threshold = thr;
    weights = new double[numOfweights];
    detweightslast = new double[numOfweights];
  }

  public void setWeight(ArrayList weight){
      weights = new double[weight.size()];
      for(int i=0;i<weight.size();i++){
          weights[i] = ((Double)weight.get(i)).doubleValue();
      }
  }


}