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arXiv 2302.05919cs.IR
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多目标跨域推荐的神经节点匹配算法

Neural Node Matching for Multi-Target Cross Domain Recommendation

Wujiang Xu, Shaoshuai Li, Mingming Ha, Xiaobo Guo, Qiongxu Ma, Xiaolei Liu, Linxun Chen, Zhenfeng Zhu

摘要:

多目标跨域推荐(CDR)是近年来研究的热点,它旨在同时提高多个域(或系统)的推荐性能。大多数现有的多目标CDR框架主要依赖于跨域的大多数重叠用户的存在。然而,一般的实际CDR场景不能满足严格重叠的要求,并且仅共享跨域的公共用户的小余量。此外,大多数用户在这种小重叠CDR场景中具有相当多的历史行为。为了解决上述问题,我们提出了一种简单而有效的基于神经节点匹配的框架,用于更一般的CDR设置,即,跨域仅存在(很少)部分重叠的用户,并且大多数重叠以及非重叠的用户具有稀疏的交互。本框架主要包括两个模块:(i)节点内到节点间匹配模块,和(ii)节点内补充模块。具体地说,第一个模块进行内部的知识融合在每个领域和随后的跨领域的知识融合,通过完全连接的用户-用户同构图信息聚合。

英文摘要:

Multi-Target Cross Domain Recommendation(CDR) has attracted a surge of interest recently, which intends to improve the recommendation performance in multiple domains (or systems) simultaneously. Most existing multi-target CDR frameworks primarily rely on the existence of the majority of overlapped users across domains. However, general practical CDR scenarios cannot meet the strictly overlapping requirements and only share a small margin of common users across domains}. Additionally, the majority of users have quite a few historical behaviors in such small-overlapping CDR scenarios}. To tackle the aforementioned issues, we propose a simple-yet-effective neural node matching based framework for more general CDR settings, i.e., only (few) partially overlapped users exist across domains and most overlapped as well as non-overlapped users do have sparse interactions. The present framework} mainly contains two modules: (i) intra-to-inter node matching module, and (ii) intra node complementing module. Concretely, the first module conducts intra-knowledge fusion within each domain and subsequent inter-knowledge fusion across domains by fully connected user-user homogeneous graph information aggregating.

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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