Reliable Evaluation of Transductive Population Graph Neural Networks for Multisite Autism fMRI
Keliang Wan, Zongqing Chen, Guixian Liu, Biantian Yu, Qian Zhang, Fanghong Zhang, Ning Zhong, Hongzhi Kuai
Site-aware population GNN on ABIDE-I: cohort AUC about 0.94 (kept with site-only edges) was not reproduced by a site-prior classifier (0.506); a directed-edge support gain (+0.252) vanished when symmetrised (−0.003).
bioRxiv · Oct 2, 2026 · PreprintNeuroscience✦ In-depth digest