用Java 实现简单的推荐系统

例子：

package recommender;


import java.util.Arrays;


/**
 * Created by legotime
 */
public class recommendTest {
    public static void main(String[] args) {
        String person1 = "dog cate pen cake pie";
        String person2 = "dog cat water coco";
        String person3 = "pie cake pen cate";
        String[] products = {person1,person3,person3};
        recommend rec = new recommend();
        rec.fit(products);
        double[] doubles = rec.recommendFun(person3);
        System.out.println(Arrays.toString(doubles));
        System.out.println(rec.getProduct());
        //[cake, cat, cate, coco, dog, pen, pie, water]
        //[0.0, 0.0, 0.0, 0.0, 0.8, 0.0, 0.0, 0.0]


        //所以推荐　买了　pie cake pen cate　的人买 dog
    }


}package recommender;


import java.uti