Retracted: Intelligent Analysis Methods for Multi-Channel Marketing Data Based on Anomaly Detection Algorithms. Journal of Sustainability, Policy, and Practice, [S. l.], v. 1, n. 2, p. 45–56, 2025. Disponível em: http://schoalrx.com/index.php/jspp/article/view/11. Acesso em: 13 sep. 2025.