论文:RecSys2011-Recommender Systems at the Long Tail(Session: Keynote Talks)
论文:RecSys2011-RecommenderSystemsattheLongTail(Session:KeynoteTalks)术语:content-based,neighborhood-based,collaborativefiltering,substitutes(相等价的商品,如可口可乐与百事可乐),complements(附加的、补充的商品,如ipod和ipodfaceplate),