Beltrami flow and neural diffusion on graphs

B Chamberlain, J Rowbottom… - Advances in …, 2021 - proceedings.neurips.cc
We propose a novel class of graph neural networks based on the discretized Beltrami flow, a
non-Euclidean diffusion PDE. In our model, node features are supplemented with positional …

Grand: Graph neural diffusion

B Chamberlain, J Rowbottom… - International …, 2021 - proceedings.mlr.press
Abstract We present Graph Neural Diffusion (GRAND) that approaches deep learning on
graphs as a continuous diffusion process and treats Graph Neural Networks (GNNs) as …

[PDF][PDF] GRAND++: Graph neural diffusion with a source term

M Thorpe, T Nguyen, H Xia, T Strohmer, A Bertozzi… - ICLR, 2022 - par.nsf.gov
ABSTRACT We propose GRAph Neural Diffusion with a source term (GRAND++) for graph
deep learning with a limited number of labeled nodes, ie, low-labeling rate. GRAND++ is a …

Adaptive diffusion in graph neural networks

J Zhao, Y Dong, M Ding… - Advances in neural …, 2021 - proceedings.neurips.cc
The success of graph neural networks (GNNs) largely relies on the process of aggregating
information from neighbors defined by the input graph structures. Notably, message passing …

Continuous graph neural networks

LP Xhonneux, M Qu, J Tang - International conference on …, 2020 - proceedings.mlr.press
This paper builds on the connection between graph neural networks and traditional
dynamical systems. We propose continuous graph neural networks (CGNN), which …

Path integral based convolution and pooling for graph neural networks

Z Ma, J Xuan, YG Wang, M Li… - Advances in Neural …, 2020 - proceedings.neurips.cc
Graph neural networks (GNNs) extends the functionality of traditional neural networks to
graph-structured data. Similar to CNNs, an optimized design of graph convolution and …

Template based graph neural network with optimal transport distances

C Vincent-Cuaz, R Flamary, M Corneli… - Advances in …, 2022 - proceedings.neurips.cc
Abstract Current Graph Neural Networks (GNN) architectures generally rely on two important
components: node features embedding through message passing, and aggregation with a …

Graph neural convection-diffusion with heterophily

K Zhao, Q Kang, Y Song, R She, S Wang… - arXiv preprint arXiv …, 2023 - arxiv.org
Graph neural networks (GNNs) have shown promising results across various graph learning
tasks, but they often assume homophily, which can result in poor performance on …

Diffusion improves graph learning

J Gasteiger, S Weißenberger… - Advances in neural …, 2019 - proceedings.neurips.cc
Graph convolution is the core of most Graph Neural Networks (GNNs) and usually
approximated by message passing between direct (one-hop) neighbors. In this work, we …

Optimization-induced graph implicit nonlinear diffusion

Q Chen, Y Wang, Y Wang, J Yang… - … on Machine Learning, 2022 - proceedings.mlr.press
Due to the over-smoothing issue, most existing graph neural networks can only capture
limited dependencies with their inherently finite aggregation layers. To overcome this …