论文标题
推荐的异质图神经网络
Heterogeneous Graph Neural Network for Recommendation
论文作者
论文摘要
电子商务的繁荣发展催生了各种推荐系统。实际上,在现实世界推荐系统中,各种类型的节点之间存在丰富而复杂的相互作用,可以构建为异质图。学习代表性节点嵌入如何是个性化推荐系统的基础和核心。 Meta-Path是一种广泛使用的结构,可在这种相互作用下捕获语义,并显示出改善节点嵌入的潜在能力。在本文中,我们提出了异构图神经网络(HGREC),该网络通过聚合基于元路径元路径的邻居将高阶语义注入嵌入节点,并通过基于注意力机制通过多个元教导来融合丰富的语义,以获得全面的节点嵌入。实验结果证明了丰富的高阶语义的重要性,还显示了HGREC的潜在良好解释性。
The prosperous development of e-commerce has spawned diverse recommendation systems. As a matter of fact, there exist rich and complex interactions among various types of nodes in real-world recommendation systems, which can be constructed as heterogeneous graphs. How learn representative node embedding is the basis and core of the personalized recommendation system. Meta-path is a widely used structure to capture the semantics beneath such interactions and show potential ability in improving node embedding. In this paper, we propose Heterogeneous Graph neural network for Recommendation (HGRec) which injects high-order semantic into node embedding via aggregating multi-hops meta-path based neighbors and fuses rich semantics via multiple meta-paths based on attention mechanism to get comprehensive node embedding. Experimental results demonstrate the importance of rich high-order semantics and also show the potentially good interpretability of HGRec.