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arXiv 2401.11705cs.IRcs.AI
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用于跨域推荐的域感知交叉注意力

Domain-Aware Cross-Attention for Cross-domain Recommendation

BUPT(北京邮电大学)

Yuhao Luo, Shiwei Ma, Mingjun Nie, Changping Peng, Zhangang Lin, Jingping Shao, Qianfang Xu

AI总结:

本文提出两步域感知交叉注意力跨域推荐模型,从多粒度提取源域可迁移特征并简化训练,实验与在线广告部署均验证其在CTR和ECPM上的显著效果。

摘要:

跨域推荐(CDR)是提升推荐系统性能的重要方法,尤其是在目标域观测数据稀疏时。然而,现有大多数跨域推荐未能充分利用目标域的特殊特征,并且难以泛化到新域。所设计的网络复杂,不适合快速工业部署。我们的方法引入了一种两步域感知交叉注意力,从不同粒度提取源域的可迁移特征,从而能够高效表达域和用户兴趣。此外,我们简化了训练流程,使模型可以轻松部署到新域。我们在公共数据集和工业数据集上都进行了实验,实验结果证明了该方法的有效性。我们还将该模型部署到在线广告系统中,并观察到点击率(CTR)和有效千次展示成本(ECPM)均取得显著提升。

英文摘要:

Cross-domain recommendation (CDR) is an important method to improve recommender system performance, especially when observations in target domains are sparse. However, most existing cross-domain recommendations fail to fully utilize the target domain's special features and are hard to be generalized to new domains. The designed network is complex and is not suitable for rapid industrial deployment. Our method introduces a two-step domain-aware cross-attention, extracting transferable features of the source domain from different granularity, which allows the efficient expression of both domain and user interests. In addition, we simplify the training process, and our model can be easily deployed on new domains. We conduct experiments on both public datasets and industrial datasets, and the experimental results demonstrate the effectiveness of our method. We have also deployed the model in an online advertising system and observed significant improvements in both Click-Through-Rate (CTR) and effective cost per mille (ECPM).

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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