publications

2024

1. 

   A critical reflection on attempts to machine-learn materials synthesis insights from text-mined literature recipes

   Wenhao Sun^* and Nicholas David^*

   Faraday Discuss., 2024

   Abs DOI Bib HTML PDF

   Synthesis of predicted materials is the key and final step needed to realize a vision of computationally accelerated materials discovery. Because so many materials have been previously synthesized, one would anticipate that text-mining synthesis recipes from the literature would yield a valuable dataset to train machine-learning models that can predict synthesis recipes for new materials. Between 2016 and 2019, the corresponding author (Wenhao Sun) participated in efforts to text-mine 31 782 solid-state synthesis recipes and 35 675 solution-based synthesis recipes from the literature. Here, we characterize these datasets and show that they do not satisfy the “4 Vs” of data-science—that is: volume, variety, veracity and velocity. For this reason, we believe that machine-learned regression or classification models built from these datasets will have limited utility in guiding the predictive synthesis of novel materials. On the other hand, these large datasets provided an opportunity to identify anomalous synthesis recipes—which in fact did inspire new hypotheses on how materials form, which we later validated by experiment. Our case study here urges a re-evaluation on how to extract the most value from large historical materials-science datasets.

   @article{D4FD00112E,
     author = {{Wenhao Sun and Nicholas David}},
     title = {A critical reflection on attempts to machine-learn materials synthesis insights from text-mined literature recipes},
     journal = {Faraday Discuss.},
     year = {2024},
     pages = {-},
     dimensions = {true},
     publisher = {The Royal Society of Chemistry},
     doi = {10.1039/D4FD00112E},
     url = {https://doi.org/10.1039/D4FD00112E},
   }

2023

1. 

   The promise and pitfalls of AI for molecular and materials synthesis

   Nicholas David, Wenhao Sun, and Connor W. Coley

   Nature Computational Science, 2023

   Abs DOI Bib HTML PDF

   As artificial intelligence (AI) proliferates, synthetic chemistry stands to benefit from its progress. Despite hidden variables and ‘unknown unknowns’ in datasets that may impede the realization of a digital twin for the laboratory flask, there are many opportunities to leverage AI and large datasets to advance synthesis science.

   @article{david_promise_2023,
     url = {https://doi.org/10.1038/s43588-023-00446-x},
     doi = {10.1038/s43588-023-00446-x},
     title = {The promise and pitfalls of AI for molecular and materials synthesis},
     author = {David, Nicholas and Sun, Wenhao and Coley, Connor W.},
     journal = {Nature Computational Science},
     volume = {3},
     number = {5},
     pages = {362--364},
     year = {2023},
     date = {2023-05-01},
     publisher = {American Association of Physics Teachers},
     dimensions = {true}
   }