论文标题

在电子商务搜索中对用户的上下文化页面反馈进行建模,以进行点击率预测

Modeling Users' Contextualized Page-wise Feedback for Click-Through Rate Prediction in E-commerce Search

论文作者

Fan, Zhifang, Ou, Dan, Gu, Yulong, Fu, Bairan, Li, Xiang, Bao, Wentian, Dai, Xin-Yu, Zeng, Xiaoyi, Zhuang, Tao, Liu, Qingwen

论文摘要

建模用户的历史反馈对于个性化搜索和建议中的点击率预测至关重要。现有方法通常仅对用户的积极反馈信息进行建模,例如忽略反馈的上下文信息的点击序列。在本文中,我们提出了一个新的视角,以包括整个页面曝光的产品和相应的反馈作为上下文化的页面反馈序列,来了解上下文感知用户的行为建模。可以捕获页面内上下文信息和页间利益演化,以了解更具体的用户偏好。我们设计了一种新颖的神经排名模型RACP(即,对上下文化页面序列的重复关注),它利用页面上下文意识到关注的注意力来模拟页面内上下文。复发的注意力过程被用来模拟交叉兴趣融合演变,以将其定位为前面页面的兴趣。公共和现实世界中的工业数据集的实验验证了我们的模型的有效性。

Modeling user's historical feedback is essential for Click-Through Rate Prediction in personalized search and recommendation. Existing methods usually only model users' positive feedback information such as click sequences which neglects the context information of the feedback. In this paper, we propose a new perspective for context-aware users' behavior modeling by including the whole page-wisely exposed products and the corresponding feedback as contextualized page-wise feedback sequence. The intra-page context information and inter-page interest evolution can be captured to learn more specific user preference. We design a novel neural ranking model RACP(i.e., Recurrent Attention over Contextualized Page sequence), which utilizes page-context aware attention to model the intra-page context. A recurrent attention process is used to model the cross-page interest convergence evolution as denoising the interest in the previous pages. Experiments on public and real-world industrial datasets verify our model's effectiveness.

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