Collaborative Filtering Cold-Start Recommendation Based on Dynamic Browsing Tree Model in E-commerce

被引:1
|
作者
Li, Cong [1 ]
Ma, Li [2 ]
Dong, Ke [3 ]
机构
[1] Sichuan Normal Univ, Sch Comp Sci, Chengdu, Peoples R China
[2] China W Normal Univ, Business Coll, Nanchong, Peoples R China
[3] Hefei Univ Technol, Sch Elect Engn & Automat, Hefei, Peoples R China
关键词
collaborative filtering; cold-start; E-commerce; Dynamic Browsing Tree;
D O I
10.1109/WISM.2009.130
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Collaborative filtering is the most successful and widely used recommendation algorithm in E-commerce recommender systems currently. However, it faces severe challenge of cold-start problem. To solve the new item problem in cold-start, a cold-start recommendation method based on dynamic browsing tree model is proposed. Firstly, user browsing records are transformed to Dynamic Browsing Tree (DBT) based on product categories of E-commerce website. Secondly, a fresh degree decay operator based on access time is designed, then an item category similarity between leaves of DBT and new item is proposed. Finally, an Interest Matching Degree (IMD) measure is designed to compute the matching degree between new item and dynamic browsing trees of all users, thus those users who have higher IMID than designated threshold will be chosen as target audience for new item. The experimental results show that the proposed method can efficiently realize new item recommendation for collaborative filtering cold-start.
引用
收藏
页码:620 / +
页数:2
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