Modeling the Heterogeneous Duration of User Interest in Time-Dependent Recommendation: A Hidden Semi-Markov Approach | |
Zhang, Haidong1; Ni, Wancheng1; Li, Xin2; Yang, Yiping1 | |
刊名 | IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS |
2018-02-01 | |
卷号 | 48期号:2页码:177-194 |
关键词 | Collaborative Filtering (Cf) Hidden Semi-markov Model (Hsmm) Recommender System Time-dependent Recommendation |
DOI | 10.1109/TSMC.2016.2599705 |
文献子类 | Article |
英文摘要 | Recommender systems are widely used for suggesting books, education materials, and products to users by exploring their behaviors. In reality, users' preferences often change over time, leading to studies on time-dependent recommender systems. However, most existing approaches that deal with time information remain primitive. In this paper, we extend existing methods and propose a hidden semi-Markov model to track the change of users' interests. Particularly, this model allows for capturing the different durations of user stays in a (latent) interest state, which can better model the heterogeneity of user interests and focuses. We derive an expectation maximization algorithm to estimate the parameters of the framework and predict users' actions. Experiments on three real-world datasets show that our model significantly outperforms the state-of-the-art time-dependent and static benchmark methods. Further analyses of the experiment results indicate that the performance improvement is related to the heterogeneity of state durations and the drift of user interests in the dataset. |
WOS关键词 | SOCIAL NETWORK ; E-COMMERCE ; SYSTEMS ; DYNAMICS ; CHAINS ; WEB |
WOS研究方向 | Automation & Control Systems ; Computer Science |
语种 | 英语 |
WOS记录号 | WOS:000422795800002 |
资助机构 | National Natural Science Foundation of China(61174190 ; GuangDong Natural Science Foundation(2015A030313876) ; CityU SRG(7004287) ; Shenzhen Research Institute, City University of Hong Kong ; 71572169) |
内容类型 | 期刊论文 |
源URL | [http://ir.ia.ac.cn/handle/173211/21939] |
专题 | 自动化研究所_综合信息系统研究中心 |
作者单位 | 1.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China 2.City Univ Hong Kong, Dept Informat Syst, Hong Kong, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Haidong,Ni, Wancheng,Li, Xin,et al. Modeling the Heterogeneous Duration of User Interest in Time-Dependent Recommendation: A Hidden Semi-Markov Approach[J]. IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS,2018,48(2):177-194. |
APA | Zhang, Haidong,Ni, Wancheng,Li, Xin,&Yang, Yiping.(2018).Modeling the Heterogeneous Duration of User Interest in Time-Dependent Recommendation: A Hidden Semi-Markov Approach.IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS,48(2),177-194. |
MLA | Zhang, Haidong,et al."Modeling the Heterogeneous Duration of User Interest in Time-Dependent Recommendation: A Hidden Semi-Markov Approach".IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS 48.2(2018):177-194. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论