Enhancing Ethereum Fraud Detection via Generative and Contrastive Self-supervision

C **, J Zhou, C **e, S Yu, Q Xuan… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
The rampant fraudulent activities on Ethereum hinder the healthy development of the
blockchain ecosystem, necessitating the reinforcement of regulations. However, multiple …

Time-aware metapath feature augmentation for ponzi detection in ethereum

C **, J Zhou, J **, J Wu, Q Xuan - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
With the development of Web 3.0 which emphasizes decentralization, blockchain
technology ushers in its revolution and also brings numerous challenges, particularly in the …

Multi-view Correlation-aware Network Traffic Detection on Flow Hypergraph

J Zhou, W Fu, H Song, S Yu, Q Xuan… - arxiv preprint arxiv …, 2025 - arxiv.org
As the Internet rapidly expands, the increasing complexity and diversity of network activities
pose significant challenges to effective network governance and security regulation …

Mixture of Decoupled Message Passing Experts with Entropy Constraint for General Node Classification

X Chen, J Zhou, J Chen, S Yu, Q Xuan - arxiv preprint arxiv:2502.08083, 2025 - arxiv.org
The varying degrees of homophily and heterophily in real-world graphs persistently
constrain the universality of graph neural networks (GNNs) for node classification. Adopting …

Lateral Movement Detection via Time-aware Subgraph Classification on Authentication Logs

J Zhou, J Yao, X Chen, S Yu, Q Xuan… - arxiv preprint arxiv …, 2024 - arxiv.org
Lateral movement is a crucial component of advanced persistent threat (APT) attacks in
networks. Attackers exploit security vulnerabilities in internal networks or IoT devices …