Predicting materials properties without crystal structure: Deep representation learning from stoichiometry
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Abstract (arXiv)
Machine learning has the potential to accelerate materials discovery by accurately predicting materials properties at a low computational cost. However, the model inputs remain a key stumbling block. Current methods typically use descriptors constructed from knowledge of either the full crystal structure -- therefore only applicable to materials with already characterised structures -- or structure-agnostic fixed-length representations hand-engineered from the stoichiometry. We develop a machine learning approach that takes only the stoichiometry as input and automatically learns appropriate and systematically improvable descriptors from data. Our key insight is to treat the stoichiometric formula as a dense weighted graph between elements. Compared to the state of the art for structure-agnostic methods, our approach achieves lower errors with less data.
Key facts. Cited by 60 papers in the map (data through 7 Oct 2026). First posted on arXiv 1 Oct 2019.
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Citing papers per year: 2021: 7; 2022: 13; 2023: 10; 2024: 9; 2025: 12; 2026: 9.
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- 2022Large-scale machine-learning-assisted exploration of the whole materials spacecited by 13
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