Manifold-Constrained Data Augmentation via SPD Geometry for Self-Supervised ECG Representation Learning. Journal of Advanced Intelligent Computing and Informatics, [S. l.], v. 1, n. 1, p. 1–15, 2026. Disponível em: https://wrunion.org/jaici/article/view/19. Acesso em: 4 nov. 2026.