Ghasemzadeh, Hossein, Javad Mohammadzadeh, Ali Soleimani, and Azam Bastanfard. “Optimized Deep Federated Privacy-Preserving Learning for Hierarchical Caching in Fog Computing”. Contemporary Mathematics 6, no. 3 (June 16, 2025): 3646–3669. Accessed January 10, 2026. https://ojs.wiserpub.com/index.php/CM/article/view/6278.