推荐系统是信息过滤技术的应用。
Recommender system is the application of information filtering technology.
信息过滤技术已是当今信息技术研究的热点。
Information Filtering technology is a hot issue on the studying of information technology.
提出一种加入时间因素的个性化信息过滤技术。
Describes a personal information filtering technology with time factor.
应用推荐