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arXiv · 2412.14730

Generative AI for Banks: Benchmarks and Algorithms for Synthetic Financial Transaction Data

Fabian Sven Karst·Sook-Yee Chong·Abigail A. Antenor·Enyu Lin·Mahei Manhai Li·Jan Marco Leimeister
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Abstract

The banking sector faces challenges in using deep learning due to data sensitivity and regulatory constraints, but generative AI may offer a solution. Thus, this study identifies effective algorithms for generating synthetic financial transaction data and evaluates five leading models - Conditional Tabular Generative Adversarial Networks (CTGAN), DoppelGANger (DGAN), Wasserstein GAN, Financial Diffusion (FinDiff), and Tabular Variational AutoEncoders (TVAE) - across five criteria: fidelity, synthesis quality, efficiency, privacy, and graph structure. While none of the algorithms is able to replicate the real data's graph structure, each excels in specific areas: DGAN is ideal for privacy-sensitive tasks, FinDiff and TVAE excel in data replication and augmentation, and CTGAN achieves a balance across all five criteria, making it suitable for general applications with moderate privacy concerns. As a result, our findings offer valuable insights for choosing the most suitable algorithm.

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Fabian Sven Karst, Sook-Yee Chong, Abigail A. Antenor, Enyu Lin, Mahei Manhai Li, Jan Marco Leimeister. 2024-12-19. Generative AI for Banks: Benchmarks and Algorithms for Synthetic Financial Transaction Data. https://arxiv.org/abs/2412.14730

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