关键词: 推荐系统, 关联规则, 产品分类树, Vague集理论, 推荐多样性

Abstract: According to the weak association rule problems which caused by sparse association rule, and recommendation problems such as the lack of diversity, the dynamic product taxonomy is generated based on Vague set theory, and mining association rule in product taxonomy is presented to solve the weak association rules problem; on this basis, a diversity selection algorithm is proposed to solve recommendation diversity problem in recommendation result set. Experimental evaluation results show that both in the recommendation accuracy and recommendation diversity is more effective compared with the traditional recommendation method.

Key words: recommendation system, association rules, product taxonomy, Vague sets theory, recommendation diversity