Personalized topic modeling for recommending user-generated content

文献类型： 外文期刊

第一作者： Zhang, Wei

作者： Zhang, Wei;Yong, Xi;Li, Jian-kou;Zhang, Wei;Yong, Xi;Li, Jian-kou;Zhuang, Jia-yu;Chen, Wei;Li, Zhe-min;Zhuang, Jia-yu;Chen, Wei;Li, Zhe-min;Yong, Xi

作者机构：

关键词： User-generated content (UGC);Collaborative filtering (CF);Matrix factorization (MF);Hierarchical topic modeling

期刊名称：FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING （ 影响因子：2.161； 五年影响因子：1.744 ）

ISSN： 2095-9184

年卷期： 2017 年 18 卷 5 期

页码：

收录情况： SCI

摘要： User-generated content (UGC) such as blogs and twitters are exploding in modern Internet services. In such systems, recommender systems are needed to help people filter vast amount of UGC generated by other users. However, traditional recommendation models do not use user authorship of items. In this paper, we show that with this additional information, we can significantly improve the performance of recommendations. A generative model that combines hierarchical topic modeling and matrix factorization is proposed. Empirical results show that our model outperforms other state-of-the-art models, and can provide interpretable topic structures for users and items. Furthermore, since user interests can be inferred from their productions, recommendations can be made for users that do not have any ratings to solve the cold-start problem.

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