董振华 - 推荐系统与反事实学习研究-SMP2020.pdf

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1、 47pt 30pt 白 : FrutigerNext LT Medium : Arial 47pt 体 28pt 白 体 面向推荐系统的反事实学习研究 董振华 2020年9月SMP2020 内内 容容 推荐系统研究简史 面向推荐系统的反事实学习 推推荐荐系系统统学学术术简简史史（GroupLens视视角角） 1992, Information filtering and information retrieval: two sides of the same coin, CACM 1992. 1994, GroupLens: news recommendation system based

2、on collaborative filtering technologies. “GroupLens: An Open Architecture for Collaborative Filtering of Netnews”, CSCW 1994. 1996, Net perceptions, Inc. was founded, which may be the first company focus on recommender system, Amazon was their customers. 1997, MovieLens: non-commercial and personali

3、zed movie recommendations for academic research. The MovieLens data set is the most popular data set for recommender system research. 2000, SVD model was proposed to reduce the dimensionality of user-item-rating matrix data set, “Application of Dimensionality Reduction in Recommender System - A Case Study”, KDD 2000. Before 2001, the collaborative filtering is the dominated recommendation technol