Title
Item Relationship Graph Neural Networks for E-Commerce
Abstract
In a modern e-commerce recommender system, it is important to understand the relationships among products. Recognizing product relationships—such as complements or substitutes—accurately is an essential task for generating better recommendation results, as well as improving explainability in recommendation. Products and their associated relationships naturally form a product graph, yet existing efforts do not fully exploit the product graph’s topological structure. They usually only consider the information from directly connected products. In fact, the connectivity of products a few hops away also contains rich semantics and could be utilized for improved relationship prediction. In this work, we formulate the problem as a multilabel link prediction task and propose a novel graph neural network-based framework, item relationship graph neural network (IRGNN), for discovering multiple complex relationships simultaneously. We incorporate multihop relationships of products by recursively updating node embeddings using the messages from their neighbors. An edge relational network is designed to effectively capture relational information between products. Extensive experiments are conducted on real-world product data, validating the effectiveness of IRGNN, especially on large and sparse product graphs.
Year
DOI
Venue
2022
10.1109/TNNLS.2021.3060872
IEEE Transactions on Neural Networks and Learning Systems
Keywords
DocType
Volume
Algorithms,Commerce,Neural Networks, Computer,Semantics
Journal
33
Issue
ISSN
Citations 
9
2162-237X
0
PageRank 
References 
Authors
0.34
35
8
Name
Order
Citations
PageRank
Weiwen Liu14510.55
Yin Zhang23492281.04
Jianling Wang3437.58
Yun He4156.64
James Caverlee52484145.47
Patrick P. K. Chan627133.82
Daniel S. Yeung7112692.97
Pheng-Ann Heng83565280.98