TY - JOUR
T1 - LGM-GNN
T2 - a local and global aware memory-based graph neural network for fraud detection
AU - Li, Pengbo
AU - Yu, Hang
AU - Luo, Xiangfeng
AU - Wu, Jia
PY - 2023
Y1 - 2023
N2 - Graphs have been widely adopted to accomplish fraud detection tasks because of their inherently favorable structure to capture the intricate features in many complicated scenarios, especially in some modern e-commerce situations that have various relation attributes like transactions. These works tend to utilize the direct aggregate information about neighbor nodes of the target node or the aggregation of the neighbor information after the conditional filter and mostly use local information but ignore global information. However, in some cases, local abnormal points are detected in the global view, so global information is very important for fraud detection. In this article, we propose a local and global aware memory-based graph neural network for fraud detection (LGM-GNN). It first obtains the preliminary node embedding through relation-aware embedding and then interactively aggregates the local and global memory network to fuse and utilize the local and global information. Finally, the node embeddings of different levels are aggregated through the hierarchical information aggregator. Extensive experiments show our proposed LGM-GNN outperforms other SOAT methods on two real-world fraud detection datasets.
AB - Graphs have been widely adopted to accomplish fraud detection tasks because of their inherently favorable structure to capture the intricate features in many complicated scenarios, especially in some modern e-commerce situations that have various relation attributes like transactions. These works tend to utilize the direct aggregate information about neighbor nodes of the target node or the aggregation of the neighbor information after the conditional filter and mostly use local information but ignore global information. However, in some cases, local abnormal points are detected in the global view, so global information is very important for fraud detection. In this article, we propose a local and global aware memory-based graph neural network for fraud detection (LGM-GNN). It first obtains the preliminary node embedding through relation-aware embedding and then interactively aggregates the local and global memory network to fuse and utilize the local and global information. Finally, the node embeddings of different levels are aggregated through the hierarchical information aggregator. Extensive experiments show our proposed LGM-GNN outperforms other SOAT methods on two real-world fraud detection datasets.
KW - fraud detection
KW - graph neural networks
KW - memory networks
UR - http://www.scopus.com/inward/record.url?scp=85147207970&partnerID=8YFLogxK
U2 - 10.1109/TBDATA.2023.3234529
DO - 10.1109/TBDATA.2023.3234529
M3 - Article
AN - SCOPUS:85147207970
SN - 2332-7790
VL - 9
SP - 1116
EP - 1127
JO - IEEE Transactions on Big Data
JF - IEEE Transactions on Big Data
IS - 4
ER -