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基于Spark的电影推荐系统

Java 1.18% Scala 0.86% TypeScript 0.62% JavaScript 0.12% CSS 6.02% HTML 91.18%

movierecommendsystem's Introduction

MovieRecommendSystem

基于Spark的电影推荐系统

一、推荐系统要解决的问题:

  1、如何从大量信息中找到感兴趣的信息;

  2、如何让自己生产的信息脱颖而出,收到大众喜爱;

二、推荐系统的应用:

  1、电子商务    2、社交网络    3、电影和视频网站    4、个性化阅读......

三、什么是好的推荐系统?

   能够实现用户、网站和内容提供方三方共赢。

四、推荐算法有哪些?

  1、基于内容的推荐算法;

  2、基于协同过滤的推荐算法(基于邻域) --- 如根据两个人的亲密度推荐给一个人另外一个人喜欢的物品;

  3、基于关联规则的推荐算法 --- 如啤酒与尿布;

  4、基于模型的推荐算法(常用于实时推荐);

  5、混合推荐等......

五、推荐系统注意点:

  1、推荐系统需要依赖用户的行为日志,一般都作为一个后台应用程序存在于网站中;

  2、推荐系统一般都有三个部分组成:前端交互界面、日志系统和推荐算法系统;

  3、对于实施推荐算法,有两点要求,一是用户本次评分后,或最近几次评分后系统可以明显的更新推荐结果,二是计算量不大,满足响应时间的实时或准实时要求。

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