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1.重庆大学大数据与软件学院,重庆 400044
2.信息物理社会可信服务计算教育部重点实验室(重庆大学),重庆 400044
Received:27 December 2022,
Revised:2023-03-10,
Published:25 July 2023
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范伟,周魏,文俊浩.基于异构图的双通道交叉自适应对比学习推荐[J].电子学报,2023,51(07):1929-1938.
FAN Wei,ZHOU Wei,WEN Jun-hao.Recommendation Based on Graph Heterogeneous Using Dual Channel Cross-Adaptive Contrast Learning[J].ACTA ELECTRONICA SINICA,2023,51(07):1929-1938.
范伟,周魏,文俊浩.基于异构图的双通道交叉自适应对比学习推荐[J].电子学报,2023,51(07):1929-1938. DOI: 10.12263/DZXB.20230003.
FAN Wei,ZHOU Wei,WEN Jun-hao.Recommendation Based on Graph Heterogeneous Using Dual Channel Cross-Adaptive Contrast Learning[J].ACTA ELECTRONICA SINICA,2023,51(07):1929-1938. DOI: 10.12263/DZXB.20230003.
通过用户多行为进行推荐任务中,各个行为通常不是独立作用的,行为之间的协同作用和依赖关系挖掘更能增强用户行为模式建模,反映用户偏好.而用户多行为关系的引入也会增加用户物品交互图与表征空间中的异质性(heterogeneity).针对上述问题,本文设计了一种基于异构图的双通道交叉自适应对比学习推荐模型MB-DCAC(Multi-Behavior Recommendation through Dual-channel Cross-Adaptive Contrast learning),创新性的从异构数据卷积过程构建对比学习方案,并基于异构连接进行表征属性增强,以提升模型挖掘用户行为模式与表达能力.实验结果表明,本文模型在Tmall、IJCAI-Context、Beibei三个数据集上,相较于基准模型在HR@10指标上分别提升了16.7%、18.3%、2.76%.且模型在挖掘多行为之间的依赖挖掘等任务上表现优异.
In the task of recommendation through multiple behaviors
individual behaviors usually do not work independently. The mining of collaborative effects and dependencies between behaviors can better enhance user behavior modeling and reflect user preferences. The introduction of multiple user behavior relationships also increases the heterogeneity in the user-item interaction graph and representation space. To address these issues
this paper proposes a dual-channel cross-adaptive contrast learning recommendation model (MB-DCAC)
based on heterogeneous graphs. To improve the model's ability to mine user behavior patterns and expressions
this model innovatively constructs a comparative learning scheme from the convolution process of heterogeneous data and enhances the representation features based on heterogeneous connections. Experimental results show that compared with the baseline model
the proposed model improves the HR@10 metric by 16.7%
18.3%
and 2.76% on the Tmall
IJCAI-Context
and Beibei datasets
respectively. This model also performs well in tasks such as mining dependencies between multiple behaviors.
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