Guojun Xiong is an Associate Professor at the School of Computer Science, Shanghai Jiao Tong University. He was selected for the 2025 Science Fund Program for Excellent Young Scientists (Overseas). He received his Ph.D. from the State University of New York at Stony Brook in 2024, followed by postdoctoral research at the Department of Computer Science of Harvard.His research focuses on AI intelligent network decision-making and structured reinforcement learning, with primary directions including online sequential decision-making under uncertainty, stochastic optimization and control, and distributed optimization and multi-agent reinforcement learning for networked systems. He is dedicated to applying structured reinforcement learning methods to real-world complex systems, with particular attention to their potential impact in public health and social good. He has published over 20 first-author papers at top venues including NeurIPS, ICML, ICLR, AAAI, AAMAS, IEEE INFOCOM, ACM MobiHoc, IEEE/ACM TON, and IEEE TSP, and his work received a Best Paper Nomination at AAMAS 2026. He has also received the 2022 Chinese National Outstanding Overseas Student Award and the 2024 SUNY Outstanding Research Award.