Simplifying GNN Performance with Low Rank Kernel Models

• URL: http://arxiv.org/abs/2310.05250v1
• Date: Sun, 8 Oct 2023 17:56:30 GMT
• Title: Simplifying GNN Performance with Low Rank Kernel Models
• Authors: Luciano Vinas and Arash A. Amini
• Abstract summary: We revisit recent spectral GNN approaches to semi-supervised node classification (SSNC) We show that recent performance improvements in GNN approaches may be partially attributed to shifts in evaluation conventions.
• Score: 14.304623719903972
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We revisit recent spectral GNN approaches to semi-supervised node classification (SSNC). We posit that many of the current GNN architectures may be over-engineered. Instead, simpler, traditional methods from nonparametric estimation, applied in the spectral domain, could replace many deep-learning inspired GNN designs. These conventional techniques appear to be well suited for a variety of graph types reaching state-of-the-art performance on many of the common SSNC benchmarks. Additionally, we show that recent performance improvements in GNN approaches may be partially attributed to shifts in evaluation conventions. Lastly, an ablative study is conducted on the various hyperparameters associated with GNN spectral filtering techniques. Code available at: https://github.com/lucianoAvinas/lowrank-gnn-kernels

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