LI, Yunchen; YU, Zhou; HE, Gaoqi; SHEN, Yunhang; LI, Ke; SUN, Xing; LIN, Shaohui. SPD-DDPM: Denoising Diffusion Probabilistic Models in the Symmetric Positive Definite Space. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 38, n. 12, p. 13709–13717, 2024. DOI: 10.1609/aaai.v38i12.29276. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/29276. Acesso em: 14 may. 2026.