arxivcs.LGstat.ML2026-07-17
Do Generative Models Keep Time? A Time-Aware Evaluation of Synthetic Sequential Tabular Data
Kiwan Kwon, Kangmin Kim, Hojin Lee, Yeseong Jung, Hyeongwoo Kong, Vamsi K. Potluru, et al.
Synthetic sequential tabular data are increasingly used for privacy-preserving data sharing, yet a generator can reproduce every marginal and every foreign-key relationship while emitting timestamps that run backwards or repeat, and while sending entities along paths that no real…