möglich sobald bei der ZB eingereicht worden ist.
Expressivity and generalization: Fragment-biases for molecular GNNs.
In: (41st International Conference on Machine Learning, 21-27 July 2024, Vienna). 2024. 53113-53139 (Proceedings of Machine Learning Research ; 235)
Although recent advances in higher-order Graph Neural Networks (GNNs) improve the theoretical expressiveness and molecular property predictive performance, they often fall short of the empirical performance of models that explicitly use fragment information as inductive bias. However, for these approaches, there exists no theoretic expressivity study. In this work, we propose the Fragment-WL test, an extension to the well-known Weisfeiler & Leman (WL) test, which enables the theoretic analysis of these fragment-biased GNNs. Building on the insights gained from the Fragment-WL test, we develop a new GNN architecture and a fragmentation with infinite vocabulary that significantly boosts expressiveness. We show the effectiveness of our model on synthetic and real-world data where we outperform all GNNs on Peptides and have 12% lower error than all GNNs on ZINC and 34% lower error than other fragment-biased models. Furthermore, we show that our model exhibits superior generalization capabilities compared to the latest transformer-based architectures, positioning it as a robust solution for a range of molecular modeling tasks.
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Publikationstyp
Artikel: Konferenzbeitrag
Sprache
englisch
Veröffentlichungsjahr
2024
HGF-Berichtsjahr
2024
Konferenztitel
41st International Conference on Machine Learning
Konferzenzdatum
21-27 July 2024
Konferenzort
Vienna
Quellenangaben
Band: 235,
Seiten: 53113-53139
Institut(e)
Institute of Computational Biology (ICB)
POF Topic(s)
30205 - Bioengineering and Digital Health
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503800-001
Scopus ID
85203818936
Erfassungsdatum
2024-09-20