关键词: 协同过滤, 时间感知推荐, 用户反馈, 推荐系统, 社交网络

Abstract: By exploiting the context information, such as time, relationship and user feedback information in social network, a time-aware social recommendation method based on user feedback is proposed. The proposed method incorporates the temporal factors by introducing a time weight function, which models the decay of user interest. Moreover, the method considers the user positive feedback and negative feedback information, as well as the social relationship information for recommendation. Experimental results and analysis show that the proposed method outperforms the collaborative filtering method for top-k item recommendation in social networks.

Key words: collaborative filtering, time-aware recommendation, user feedback, recommender system, social network