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arXiv 1808.01075cs.IR
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从历史和现在中学习:通过有区别地利用用户行为的下一项推荐

Learning from History and Present: Next-item Recommendation via Discriminatively Exploiting User Behaviors

Zhi Li, Hongke Zhao, Qi Liu, Zhenya Huang, Tao Mei, Enhong Chen

摘要:

在现代电子商务中,顾客的行为包含着丰富的信息,消费习惯,偏好的动态。最近,基于会话的推荐越来越流行,以探索客户的交互行为的时间特性。然而,现有的研究主要是利用短期行为,没有充分考虑客户的长期稳定的偏好和演变。在本文中,我们提出了一种新的行为密集型神经网络(BINN)的下一个项目推荐结合用户的历史稳定的偏好和目前的消费动机。具体来说,BINN包含两个主要组件,即,神经项目嵌入和区分行为学习。首先,提出了一种基于用户交互的项目嵌入方法,以获得每个项目的统一表示。然后,通过嵌入的项目和项目序列上的交互行为,BINN有区别地学习目标用户的历史偏好和当前动机。因此,BINN可以更好地为目标用户推荐下一个项目。最后,为了评估BINN的性能,我们在两个真实世界的数据集上进行了广泛的实验,即,天池和JD.实验结果清楚地证明了BINN的有效性与几个国家的最先进的方法相比。

英文摘要:

In the modern e-commerce, the behaviors of customers contain rich information, e.g., consumption habits, the dynamics of preferences. Recently, session-based recommendations are becoming popular to explore the temporal characteristics of customers' interactive behaviors. However, existing works mainly exploit the short-term behaviors without fully taking the customers' long-term stable preferences and evolutions into account. In this paper, we propose a novel Behavior-Intensive Neural Network (BINN) for next-item recommendation by incorporating both users' historical stable preferences and present consumption motivations. Specifically, BINN contains two main components, i.e., Neural Item Embedding, and Discriminative Behaviors Learning. Firstly, a novel item embedding method based on user interactions is developed for obtaining an unified representation for each item. Then, with the embedded items and the interactive behaviors over item sequences, BINN discriminatively learns the historical preferences and present motivations of the target users. Thus, BINN could better perform recommendations of the next items for the target users. Finally, for evaluating the performances of BINN, we conduct extensive experiments on two real-world datasets, i.e., Tianchi and JD. The experimental results clearly demonstrate the effectiveness of BINN compared with several state-of-the-art methods.

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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