计算机科学 ›› 2015, Vol. 42 ›› Issue (9): 204-207.doi: 10.11896/j.issn.1002-137X.2015.09.039
吴正洋,汤庸,方家轩,董浩业
WU Zheng-yang, TANG Yong, FANG Jia-xuan and DONG Hao-ye
摘要: 协同过滤推荐是一种基于用户偏好的个性化推荐方法,一般包含两个步骤:首先根据用户或项目的标注信息计算出用户或项目的相似度,确定邻居集合;然后根据相似度进行排序推荐,其核心问题在于相似度的计算。为了更好地达到这一目的,近年来关于将用户社交网络信息融入相似度计算的方法受到广泛关注。用户的注册信息、项目评分和社交信息都可以作为用户比较的依据。基于此提出了通过构建用户本体,计算本体之间的语义相似度,从而找到相似用户集合,最终实现目标用户的推荐方法。该方法为本体技术与推荐系统的结合提供了一种思路,实验表明 它能够在一定程度上提高推荐的准确度。
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