Title :
Tag-based top-N recommendation using a pairwise topic model
Author :
Zhengyang Li ; Congfu Xu
Author_Institution :
Inst. of Artificial Intell., Zhejiang Univ., Hangzhou, China
Abstract :
Tagging systems enable users to organise their online entities with distinct tags. Exploiting these user generated content and underlying bilingual information have become more and more important in recommendation system. Probabilistic topic model has been widely used in document management and social network mining. In this paper, we propose a new method to do tag-based recommendation with topic model. Some existing methods are based on mining association rules and similarity measures. In these cases, tags serve as the essential intermediates for statistical computation, but they have the drawbacks that results are sensitive to parameter setup. Even though they are popular in some real application situations, they are simply lack of scalability as the computational procedure differs over distinguished platforms. It´s natural to take tags as words, from which topics can be effectively extracted by using topic model. Under the assumption of the generating process in topic model, user´s topic distribution parameter implies his or her topic preference. Recommendation results are obtained according to the final probability calculated by summing over topics. Our experiments show that the proposed model is effective to do both tags and items recommendation on two sparse datasets.
Keywords :
content management; data mining; probability; recommender systems; social networking (online); statistical analysis; association rule mining; bilingual information; document management; item recommendation; online entities; pairwise topic model; probabilistic topic model; probability; similarity measures; social network mining; sparse datasets; statistical computation; tag-based top-N recommendation system; tagging systems; topic preference; user generated content; user topic distribution parameter; Approximation methods; Collaboration; Computational modeling; Equations; Mathematical model; Predictive models; Probabilistic logic;
Conference_Titel :
Information Reuse and Integration (IRI), 2013 IEEE 14th International Conference on
Conference_Location :
San Francisco, CA
DOI :
10.1109/IRI.2013.6642450