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Molecular Graph Convolutions: Moving Beyond Fingerprints

2016/03/31 by Steven Kearnes, Kevin McCloskey, Marc Berndl +3 · 116 citations
Computer Science · Engineering · Materials Science · Mathematics · #Computational Drug Discovery Methods #Machine Learning in Materials Science #Surface Chemistry and Catalysis #cs.LG #stat.ML

paper · pdf · doi:10.1007/s10822-016-9938-8

published as J Comput Aided Mol Des (2016) · See "Version information" section

arxiv created 2016/08/18 · arxiv updated 2016/08/26

Abstract

Molecular "fingerprints" encoding structural information are the workhorse of cheminformatics and machine learning in drug discovery applications. However, fingerprint representations necessarily emphasize particular aspects of the molecular structure while ignoring others, rather than allowing the model to make data-driven decisions. We describe molecular "graph convolutions", a machine learning architecture for learning from undirected graphs, specifically small molecules. Graph convolutions use a simple encoding of the molecular graph---atoms, bonds, distances, etc.---which allows the model to take greater advantage of information in the graph structure. Although graph convolutions do not outperform all fingerprint-based methods, they (along with other graph-based methods) represent a new paradigm in ligand-based virtual screening with exciting opportunities for future improvement.

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