arXiv Machine Learning By Zhicong Cai, Yinglong Zhang, Xiaoying Hong, Xuewen Xia, Xing Xu

PreGS: A Parameter-Transfer-Based Multi-Expert Graph Neural Network for Node Classification

Read the original on arXiv Machine Learning →

PreGS is a multi-expert graph neural network that uses parameter transfer from a pre‑trained multi‑head GAT to freeze GraphSAGE experts, creating complementary structural branches. The model fuses raw node features, GAT head outputs, and expert representations through an MLP, then combines the result with pretrained GAT logits. An extended version, PreGSv2, adds source‑level weighting and a structural gating mechanism for adaptive feature integration, and both variants outperform several baseline GNNs on eight public datasets.

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