arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1605.00596stat.MLcs.AIcs.IRcs.LG
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基于图聚类的推荐算法

Graph Clustering Bandits for Recommendation

University of Insubria(因苏布里亚大学);Telefonica Research(西班牙电信研究院)

Shuai Li, Claudio Gentile, Alexandros Karatzoglou

摘要:

我们研究了一种有效的上下文相关的聚类技术的推荐系统的基础上探索开发策略,通过多武装土匪在多个用户。我们的算法动态组用户的基础上观察到的行为相似性在一系列记录的活动。在这样做时,该算法通过在他/她周围塑造集群来对当前服务的用户做出反应,但同时,它探索了当前未参与的用户的集群的生成。我们激励这种聚类策略的有效性,并提供了一个广泛的实证分析,对现实世界的数据集,显示可扩展性和改进的预测性能超过国家的最先进的方法,顺序聚类的用户在多臂土匪的情况下。

英文摘要:

We investigate an efficient context-dependent clustering technique for recommender systems based on exploration-exploitation strategies through multi-armed bandits over multiple users. Our algorithm dynamically groups users based on their observed behavioral similarity during a sequence of logged activities. In doing so, the algorithm reacts to the currently served user by shaping clusters around him/her but, at the same time, it explores the generation of clusters over users which are not currently engaged. We motivate the effectiveness of this clustering policy, and provide an extensive empirical analysis on real-world datasets, showing scalability and improved prediction performance over state-of-the-art methods for sequential clustering of users in multi-armed bandit scenarios.

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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