arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1111.2948cs.LGcs.IR
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基于上下文信息的Top-N推荐系统

Using Contextual Information as Virtual Items on Top-N Recommender Systems

LIAAD-INESC Porto L.A.(波尔图人工智能与决策支持实验室- INESC波尔图实验室协会)

Marcos A. Domingues, Alipio Mario Jorge, Carlos Soares

摘要:

传统上,Web推荐系统处理具有两个维度(用户和项目)的应用程序。基于与这些维度相关的访问日志,可以构建推荐模型,并将其用于识别某个用户将感兴趣的N个项目的集合。在本文中,我们提出了一种方法来补充信息的访问日志与上下文信息,而不改变推荐算法。该方法在于将上下文表示为虚拟项。我们实证测试这种方法与两个前N推荐系统,基于项目的协同过滤技术和关联规则,在三个数据集。结果表明,我们的方法是能够利用上下文(新的维度)时,它是信息。

英文摘要:

Traditionally, recommender systems for the Web deal with applications that have two dimensions, users and items. Based on access logs that relate these dimensions, a recommendation model can be built and used to identify a set of N items that will be of interest to a certain user. In this paper we propose a method to complement the information in the access logs with contextual information without changing the recommendation algorithm. The method consists in representing context as virtual items. We empirically test this method with two top-N recommender systems, an item-based collaborative filtering technique and association rules, on three data sets. The results show that our method is able to take advantage of the context (new dimensions) when it is informative.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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