Hybrid Spectral-Spatial Graph Neural Networks: Bridging Spectral Theory and Scalability
摘要
We describe a new Graph Neural Network (GNN) framework that combines spectral and spatial techniques in a single, cohesive architecture. The network employs spectral graph theory, exploiting Laplacian eigenvalues and eigenvectors, to maintain a broad understanding of global graph geometry; meanwhile, localized message-passing simultaneously tightens the focus to track first-order relational subtleties. This dual approach addresses the typical compromise between expressiveness and scalability found in earlier models. We benchmark the architecture against a suite of competitive baselines across prominent datasets (Cora, PubMed, and ZINC) and observe consistent gains in predictive performance together with lower overall computational overhead. The accuracy and efficiency increases emphasize hybrid spectral-spatial GNNs as a viable and reducible framework for pushing the border of graph learning across a range of real-world problems.