arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2209.09427cs.IR
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基于时空增强网络的位置服务点击率预测

Spatiotemporal-Enhanced Network for Click-Through Rate Prediction in Location-based Services

Shaochuan Lin, Yicong Yu, Xiyu Ji, Taotao Zhou, Hengxu He, Zisen Sang, Jia Jia, Guodong Cao, Ning Hu

摘要:

在基于位置的服务(LBS)中,用户行为自然对时空信息具有很强的依赖性,即,在不同的地理位置和不同的时间,用户的点击行为会发生很大的变化。对用户点击行为和大规模稀疏属性进行适当的时空增强建模是构建LBS模型的关键。虽然现有的方法已被证明是有效的,他们很难适用于外卖场景,由于时空信息建模不足。在本文中,我们解决这一挑战,寻求明确的时间和位置的相互作用,并提出了时空增强网络,即StEN模型。特别是,StEN应用时空轮廓激活模块,通过属性特征来捕获共同的时空偏好。进一步应用时空偏好激活模型对行为所体现的个性化时空偏好进行了详细的建模。此外,采用时空感知的目标注意力机制,在不同的位置和时间产生不同的目标注意力参数,从而提高了模型的个性化时空感知能力。在三个大规模工业数据集上进行了综合实验,实验结果表明了本文方法的先进性能。此外,我们还发布了外卖行业的行业数据集,以弥补该社区公共数据集的不足。

英文摘要:

In Location-Based Services(LBS), user behavior naturally has a strong dependence on the spatiotemporal information, i.e., in different geographical locations and at different times, user click behavior will change significantly. Appropriate spatiotemporal enhancement modeling of user click behavior and large-scale sparse attributes is key to building an LBS model. Although most of existing methods have been proved to be effective, they are difficult to apply to takeaway scenarios due to insufficient modeling of spatiotemporal information. In this paper, we address this challenge by seeking to explicitly model the timing and locations of interactions and proposing a Spatiotemporal-Enhanced Network, namely StEN. In particular, StEN applies a Spatiotemporal Profile Activation module to capture common spatiotemporal preference through attribute features. A Spatiotemporal Preference Activation is further applied to model the personalized spatiotemporal preference embodied by behaviors in detail. Moreover, a Spatiotemporal-aware Target Attention mechanism is adopted to generate different parameters for target attention at different locations and times, thereby improving the personalized spatiotemporal awareness of the model.Comprehensive experiments are conducted on three large-scale industrial datasets, and the results demonstrate the state-of-the-art performance of our methods. In addition, we have also released an industrial dataset for takeaway industry to make up for the lack of public datasets in this community.

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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