推荐系统已经得到广泛研究和应用并产生了巨大价值。作者提出推荐算法个性化的概念，并将推荐系统划分为非个性化系统、个性化推荐系统、算法参数个性化的推荐系统，以及推荐算法个性化的系统。指出了推荐系统两个全新的研究方向，并初步展示了其在推荐效果提升上的巨大潜力。%Recommender systems have been widely studied and applied.In this paper,the concept of individual recommendation algorithm is proposed,and accordingly the recommender systems are classified into four types:the non-personalized system,the personalized recommender system,the algorithm parameters personalized recommen-der system,and the individual recommender system.This paper thus suggests two new research directions of the recommender systems,and shows preliminary potential for the considerable improvementin commercial use.
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