Training-free Graph Neural Networks and the Power of Labels as Features

• URL: http://arxiv.org/abs/2404.19288v2
• Date: Thu, 15 Aug 2024 08:32:26 GMT
• Title: Training-free Graph Neural Networks and the Power of Labels as Features
• Authors: Ryoma Sato,
• Abstract summary: Training-free graph neural networks (TFGNNs) can be used without training and can also be improved with optional training. We show that LaF provably enhances the expressive power of graph neural networks. In the experiments, we confirm that TFGNNs outperform existing GNNs in the training-free setting and converge with much fewer training iterations than traditional GNNs.
• Score: 17.912507269030577
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose training-free graph neural networks (TFGNNs), which can be used without training and can also be improved with optional training, for transductive node classification. We first advocate labels as features (LaF), which is an admissible but not explored technique. We show that LaF provably enhances the expressive power of graph neural networks. We design TFGNNs based on this analysis. In the experiments, we confirm that TFGNNs outperform existing GNNs in the training-free setting and converge with much fewer training iterations than traditional GNNs.

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