Conference
Open access
2026
Graph–Temporal Fraud Detection with Triplet Loss under Class Imbalance
Financial fraud detection in transaction networks is challenging due to evolving attack strategies, complex relational structures, and extreme class imbalance. We propose a hybrid deep learning model that fuses Graph Convolutional Neural Networks (GCNNs) with bidirectional LSTMs enhanced by temporal attention, enabling...
Ofonime Dominic Okon, Imo Enang, B. Stephen et al.
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