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For What

Understanding Recommendation System Technology And Do Some Implementation Works.

Important Readings

Person In This Aera

Code Readings

Organizations

Blog Readings

Categories

  • Content Based RS
    • method
      • Create vectors describing items, create vectors with the same components that describe the user's preferences.
  • Collaborative Filtering Based RS
    • method
      • The process of identifying similar users and recommending what similar users like.
    • categories
      • neighborhood methods
      • latent factor models
        • Matrix Factorization Based RS
  • Tree Based RS
    • GBDT & Xgboost
    • XGBoost + LR
    • 兴趣树
  • LR Related
    • LR
    • FM
    • FFM
  • Deep Learning Based RS
    • Wide and Deep
    • DeepFM
    • DeepFFM
  • Stream Based RS

Features

  • information filtering system

Some Technology Problems

  • Cold Start Problem
    • 基于内容推荐
    • 基于热点、时效推荐
    • 增加额外信息,比如隐含信息(浏览/点击/购买);增加兴趣时间动态信息,比如将用户隐向量看作是时间的函数等
  • RS Explaination Problem
  • The Long Tail Problem
  • Scalability
  • Accuracy

Important Systems

Conferences

  • RecSys

Data and Competitions

Useful Thinks