Fabrizio Frasca

Weisfeiler and Lehman Go Topological: Message Passing Simplicial Networks

2021 · arXiv (Cornell University)

The pairwise interaction paradigm of graph machine learning has predominantly governed the modelling of relational systems. However, graphs alone cannot capture the multi-level interactions present in many complex systems and the expressive power of such …

Graph Neural Networks for Link Prediction with Subgraph Sketching

2022 · arXiv (Cornell University)

Many Graph Neural Networks (GNNs) perform poorly compared to simple heuristics on Link Prediction (LP) tasks. This is due to limitations in expressive power such as the inability to count triangles (the backbone of most …