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Revisiting Neighborhood Aggregation in Graph Neural Networks for Node Classification using Statistical Signal Processing

2024/07/21 by Mounir Ghogho, Ghogho, Mounir
Computer Science · #FOS: Computer and information sciences #FOS: Electrical engineering #Face and Expression Recognition #Machine Learning (cs.LG) #Machine Learning (stat.ML) #Machine Learning and ELM #Neural Networks and Applications #Signal Processing (eess.SP) #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2407.15284

openalex publication_date 2024/07/21 · openalex created_date 2025/01/05 · openalex updated_date 2026/07/28

Abstract

We delve into the issue of node classification within graphs, specifically reevaluating the concept of neighborhood aggregation, which is a fundamental component in graph neural networks (GNNs). Our analysis reveals conceptual flaws within certain benchmark GNN models when operating under the assumption of edge-independent node labels, a condition commonly observed in benchmark graphs employed for node classification. Approaching neighborhood aggregation from a statistical signal processing perspective, our investigation provides novel insights which may be used to design more efficient GNN models.

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