考虑学者间不对称影响,提升学术论文推荐效果
MIARec: Mutual-influence-aware Heterogeneous Network Embedding for Scientific Paper Recommendation
- 用引力模型量化学者间相互影响,融入图学习的消息传播
- 多通道聚合捕捉异构网络中单关系与关联嵌入,性能优于基线
- 适合需要精准学术推荐的科研人员和平台开发者
随着科学文献的快速增长,研究人员对精准高质量的论文推荐需求日益增加。基于图的方法因能有效利用学术网络的结构特征而受到关注,但这些方法在学习图表示时常忽视学术网络中普遍存在的非对称学术影响力。为此,本文提出互影响感知推荐模型(MIARec),采用引力模型衡量学者间的相互学术影响,并将该影响融入图表示学习中的消息传播过程。同时,模型使用多通道聚合方法,捕获不同单一关系子网络的个体嵌入及其相互依赖的嵌入,实现对异构学术网络更全面的理解。在真实数据集上的大量实验表明,MIARec在三个主要评估指标上均优于基线模型,证明其在科学论文推荐任务中的有效性。
原文摘要 · Abstract (English)
With the rapid expansion of scientific literature, scholars increasingly demand precise and high-quality paper recommendations. Among various recommendation methodologies, graph-based approaches have garnered attention by effectively exploiting the structural characteristics inherent in scholarly networks. However, these methods often overlook the asymmetric academic influence that is prevalent in scholarly networks when learning graph representations. To address this limitation, this study proposes the Mutual-Influence-Aware Recommendation (MIARec) model, which employs a gravity-based approach to measure the mutual academic influence between scholars and incorporates this influence into the feature aggregation process during message propagation in graph representation learning. Additionally, the model utilizes a multi-channel aggregation method to capture both individual embeddings of distinct single relational sub-networks and their interdependent embeddings, thereby enabling a more comprehensive understanding of the heterogeneous scholarly network. Extensive experiments conducted on real-world datasets demonstrate that the MIARec model outperforms baseline models across three primary evaluation metrics, indicating its effectiveness in scientific paper recommendation tasks.
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