Deep Learning Foundation Models from Classical Molecular Descriptors

Fuente: arXiv
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Main Authors: Burns, Jackson W., Zalte, Akshat Shirish, Abreu, Charlles R. A., Sieg, Jochen, Feldmann, Christian, Mathea, Miriam, Green, William H.
Format: Preprint
Published: 2025
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author Burns, Jackson W.
Zalte, Akshat Shirish
Abreu, Charlles R. A.
Sieg, Jochen
Feldmann, Christian
Mathea, Miriam
Green, William H.
author_facet Burns, Jackson W.
Zalte, Akshat Shirish
Abreu, Charlles R. A.
Sieg, Jochen
Feldmann, Christian
Mathea, Miriam
Green, William H.
contents Fast and accurate data-driven prediction of molecular properties is pivotal to scientific advancements across myriad chemical domains. Deep learning methods have recently garnered much attention, despite their inability to outperform classical machine learning methods when tested on practical, real-world benchmarks with limited training data. This study seeks to bridge this gap with CheMeleon, a O(10M) parameter foundation model that enables directed message-passing neural networks to finally exceed the performance of classical methods. Evaluated on 58 benchmark datasets from Polaris and MoleculeACE, CheMeleon achieves a win rate of 75% on Polaris tasks, outperforming baselines like Random Forest (68%), fastprop (36%), and Chemprop (32%), and a 97% win rate on MoleculeACE assays, surpassing Random Forest (50%) and other foundation models. Unlike conventional pre-training approaches that rely on noisy experimental data or biased quantum mechanical simulations, CheMeleon utilizes low-noise molecular descriptors to learn rich and highly transferable molecular representations, suggesting a new avenue for foundation model pre-training.
format Preprint
id arxiv_https___arxiv_org_abs_2506_15792
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Deep Learning Foundation Models from Classical Molecular Descriptors
Burns, Jackson W.
Zalte, Akshat Shirish
Abreu, Charlles R. A.
Sieg, Jochen
Feldmann, Christian
Mathea, Miriam
Green, William H.
Machine Learning
Chemical Physics
Fast and accurate data-driven prediction of molecular properties is pivotal to scientific advancements across myriad chemical domains. Deep learning methods have recently garnered much attention, despite their inability to outperform classical machine learning methods when tested on practical, real-world benchmarks with limited training data. This study seeks to bridge this gap with CheMeleon, a O(10M) parameter foundation model that enables directed message-passing neural networks to finally exceed the performance of classical methods. Evaluated on 58 benchmark datasets from Polaris and MoleculeACE, CheMeleon achieves a win rate of 75% on Polaris tasks, outperforming baselines like Random Forest (68%), fastprop (36%), and Chemprop (32%), and a 97% win rate on MoleculeACE assays, surpassing Random Forest (50%) and other foundation models. Unlike conventional pre-training approaches that rely on noisy experimental data or biased quantum mechanical simulations, CheMeleon utilizes low-noise molecular descriptors to learn rich and highly transferable molecular representations, suggesting a new avenue for foundation model pre-training.
title Deep Learning Foundation Models from Classical Molecular Descriptors
topic Machine Learning
Chemical Physics
url https://arxiv.org/abs/2506.15792