Data types:
- Explict
- Implict
Difference between recommender and prediction: 推荐系统建议你可能感兴趣的东西(top n interested),而预测则预测用户对东西的喜好程度。
TOP-N + Softer/Organic Presentation (推荐系统采用一种软性广告的形式获得信任)
Wilson score interval 被用来计算评价的置信度/score
http://en.wikipedia.org/wiki/Binomial_proportion_confidence_interval#Wilson_score_interval
How to rank:
- http://amix.dk/blog/post/19574
- http://amix.dk/blog/post/19588
- https://possiblywrong.wordpress.com/2011/06/05/reddits-comment-ranking-algorithm/
- http://www.evanmiller.org/how-not-to-sort-by-average-rating.html
时间: 2024-10-14 06:08:12