java 感知机原始形式和对偶形式

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原始形式代码：

package perceptron;

public class yuanshi {
    public static void main(String[] args){
        int[][ ]x = {{3,3,1},{4,3,1},{1,1,-1}};
        int[] w = {0,0};
        select(x,w,0);
    }

    private static void select(int[][] x, int[] w, int b) {
        int i = 0;
        while(i<x.length){
            if(x[i][2]*(w[0]*x[i][0]+w[1]*x[i][1]+b) <= 0){
                w[0] += 1 * x[i][2] * x[i][0];
                w[1] += 1 * x[i][2] * x[i][1];
                b += 1 * x[i][2]; 
                i = 0;
            }
            else{
                i++;
            }
        }
        System.out.println("w的值:" + w[0] + " " +  w[1] + ",b的值" + b );
    }
}

对偶形式代码：

package perceptron;

public class duiou {
    public static void main(String[] args){
        int[][]x = {{3,3,1},{4,3,1},{1,1,-1}};
        int[] a = {0,0,0};
        int b = 0;
        int[][] gram = {{18,21,6},{21,25,7},{6,7,2}};
        select(x,a,b,gram);
    }

    private static void select(int[][] x, int[] a, int b, int[][] gram) {
        int i = 0;
        while(i<x.length){
            if(x[i][2]*((a[0]*x[0][2]*gram[0][i]+a[1]*x[1][2]*gram[1][i]+a[2]*x[2][2]*gram[2][i])+b) <= 0){
                a[i] += 1;
                b += x[i][2];
                i = 0;
            }
            else{
                i++;
            }
        }
        System.out.println("a的值:" + a[0] + " " +  a[1] +  " " + a[2] + ",b的值" + b );
    }
}