ZHAO, Ting. Retraction Notice: Use MOOC to learn image denoising techniques. EAI Endorsed Transactions on e-Learning, [S. l.], v. 12, 2026. DOI: 10.4108/eetel.12238. Disponível em: https://publications.eai.eu/index.php/el/article/view/12238. Acesso em: 1 apr. 2026.