RBF-GNN: Rational Basis Functions for Pseudo-Coordinate based Graph Convolutions
Read the original on arXiv Computer Vision →The Flow has not summarised this story yet — read it at arXiv Computer Vision.
The Flow has not summarised this story yet — read it at arXiv Computer Vision.
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arXiv:2606. 01283v1 Announce Type: new Abstract: Modeling spatial dependencies is central to spatiotemporal data analysis using Graph Neural Networks (GNNs).
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The paper introduces a Position Encoding-Based Deformable Spatial Aggregation Module (PEBDSAM) that uses a deformable mechanism in position space to identify relevant nodes beyond first‑order neighbors, thereby addressing over‑smoothing, over‑compression, limited receptive fields, and noise from heterophilous graphs. Diagnostic experiments revealed that current offsets are ineffective, yet performance still improves, leading to a streamlined version called PEBSAM and a faster variant, PEBSAM‑Speed. The module is plug‑and‑play and can be integrated into GCN, GAT, GIN, and GraphSAGE, achieving strong results on both homophilous and heterophilous datasets.
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