Haji Ebrahim Tehrani, Mohammad, et al. “A Hybrid Approach Based on a Memory-Instance–Based Gated Transformer (MIGT) Algorithm and Metaheuristic Optimization for Portfolio Management With the Aim of Return Optimization and Risk Control”. Journal of Resource Management and Decision Engineering, May 2026, pp. 1-20, https://journalrmde.com/index.php/jrmde/article/view/255.