1 code implementation • 5 Feb 2024 • Giannis Nikolentzos, Siyun Wang, Johannes Lutzeyer, Michalis Vazirgiannis
We then propose a new machine learning model for tabular data, the so-called Graph Neural Machine (GNM), which replaces the MLP's directed acyclic graph with a nearly complete graph and which employs a synchronous message passing scheme.
1 code implementation • 9 Jun 2023 • Gaspard Michel, Giannis Nikolentzos, Johannes Lutzeyer, Michalis Vazirgiannis
We derive three different variants of the PathNN model that aggregate single shortest paths, all shortest paths and all simple paths of length up to K. We prove that two of these variants are strictly more powerful than the 1-WL algorithm, and we experimentally validate our theoretical results.
Ranked #7 on Graph Classification on Peptides-func
no code implementations • 20 Apr 2023 • Benjamin Doerr, Arthur Dremaux, Johannes Lutzeyer, Aurélien Stumpf
In recent work, Lissovoi, Oliveto, and Warwicker (Artificial Intelligence (2023)) proved that the Move Acceptance Hyper-Heuristic (MAHH) leaves the local optimum of the multimodal cliff benchmark with remarkable efficiency.
1 code implementation • ICLR 2021 • George Dasoulas, Johannes Lutzeyer, Michalis Vazirgiannis
In many domains data is currently represented as graphs and therefore, the graph representation of this data becomes increasingly important in machine learning.