Fu, Xingbo, Zihan Chen, Yinhan He, Song Wang, Binchi Zhang, Chen Chen, and Jundong Li. “Virtual Nodes Can Help: Tackling Distribution Shifts in Federated Graph Learning”. Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 16 (April 11, 2025): 16657–16665. Accessed May 26, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/33830.