Shahzeb, I., Noureen, Z., Saif, U. R., Shireen, Z., Khalid, M., Luis, A. D. L., Eduardo, G. V., Imran, A. (2026). Enhancing smart city transportation networks: A novel particle swarm optimization and YOLO7x-based ensemble model for accurate vehicle detection. Ain Shams Engineering Journal. https://doi.org/10.1016/j.asej.2026.104046