Personalized topic modeling for recommending user-generated content

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...

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Bibliographic Details
Published in:Frontiers of information technology & electronic engineering 2017-05, Vol.18 (5), p.708-718
Main Authors: Zhang, Wei, Zhuang, Jia-yu, Yong, Xi, Li, Jian-kou, Chen, Wei, Li, Zhe-min
Format: Article
Language:English
Subjects:
Authorship
Cold
Collaboration
Communications Engineering
Computer Hardware
Computer Science
Computer Systems Organization and Communication Networks
Data mining
Electrical Engineering
Electronics and Microelectronics
Instrumentation
Modelling
Networks
Ratings & rankings
Recommender systems
Science
Social networks
User generated content
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Summary: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.
ISSN:2095-9184
2095-9230
DOI:10.1631/FITEE.1500402