TY - JOUR AU - Zhang, Yin AU - Zhang, Bin AU - Gao, Kening AU - Guo, Pengwei AU - Sun, Daming T1 - Combining content and relation analysis for recommendation in social tagging systems JO - Physica A: Statistical Mechanics and its Applications PY - 2012/ VL - 391 IS - 22 SP - 5759 EP - 5768 UR - http://www.sciencedirect.com/science/article/pii/S0378437112003846 DO - 10.1016/j.physa.2012.05.013 KW - combining KW - relation KW - analysis KW - recommendation KW - content L1 - SN - N1 - ScienceDirect.com - Physica A: Statistical Mechanics and its Applications - Combining content and relation analysis for recommendation in social tagging systems N1 - AB - Social tagging is one of the most important ways to organize and index online resources. Recommendation in social tagging systems, e.g. tag recommendation, item recommendation and user recommendation, is used to improve the quality of tags and to ease the tagging or searching process. Existing works usually provide recommendations by analyzing relation information in social tagging systems, suffering a lot from the over sparse problem. These approaches ignore information contained in the content of resources, which we believe should be considered to improve recommendation quality and to deal with the over sparse problem. In this paper we propose a recommendation approach for social tagging systems that combines content and relation analysis in a single model. By modeling the generating process of social tagging systems in a latent Dirichlet allocation approach, we build a fully generative model for social tagging, leverage it to estimate the relation between users, tags and resources and achieve tag, item and user recommendation tasks. The model is evaluated using a CiteULike data snapshot, and results show improvements in metrics for various recommendation tasks. ER - TY - JOUR AU - Zhang, Yin AU - Zhang, Bin AU - Gao, Kening AU - Guo, Pengwei AU - Sun, Daming T1 - Combining content and relation analysis for recommendation in social tagging systems JO - Physica A: Statistical Mechanics and its Applications PY - 2012/ VL - 391 IS - 22 SP - 5759 EP - 5768 UR - http://www.sciencedirect.com/science/article/pii/S0378437112003846 DO - 10.1016/j.physa.2012.05.013 KW - model KW - lda KW - ranking KW - folksonomy KW - folkrank KW - toread L1 - SN - N1 - ScienceDirect.com - Physica A: Statistical Mechanics and its Applications - Combining content and relation analysis for recommendation in social tagging systems N1 - AB - Social tagging is one of the most important ways to organize and index online resources. Recommendation in social tagging systems, e.g. tag recommendation, item recommendation and user recommendation, is used to improve the quality of tags and to ease the tagging or searching process. Existing works usually provide recommendations by analyzing relation information in social tagging systems, suffering a lot from the over sparse problem. These approaches ignore information contained in the content of resources, which we believe should be considered to improve recommendation quality and to deal with the over sparse problem. In this paper we propose a recommendation approach for social tagging systems that combines content and relation analysis in a single model. By modeling the generating process of social tagging systems in a latent Dirichlet allocation approach, we build a fully generative model for social tagging, leverage it to estimate the relation between users, tags and resources and achieve tag, item and user recommendation tasks. The model is evaluated using a CiteULike data snapshot, and results show improvements in metrics for various recommendation tasks. ER -