Few-Shot, Transfer, and Meta-Learning in Naturally Data-Scarce Vertical Domains: A Cross-Sector Methodological Survey from Rare-Disease Diagnosis, Emerging-Financial-Product Risk Management, Autism Spectrum Variability, and Low-Resource Language Processin. Journal of Global Engineering Review, [S. l.], v. 4, n. 1, 2026. DOI: 10.66372/. Disponível em: https://gereview.com/index.php/jger/article/view/36. Acesso em: 31 may. 2026.