PhD Studentship: Uncertainty quantification for machine learning models of chemical reactivity

University of Nottingham

united kingdom

3 weeks ago

Applications closed

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Closing Date
Monday 05 May 2025

Reference
SCI3039

In this PhD project, we will develop and implement approaches for estimating the uncertainty in AI predictions of chemical reactivity, to help strengthen the interaction between human chemists and machine learning algorithms and to assess when AI predictions are likely to be correct and when, for example, first principles quantum chemical calculations might be helpful.

Predicting chemical reactivity is, in general, a challenging problem and one for which there is relatively little data, because experimental chemistry takes time and is expensive. Within our research group, we have a highly automated workflow for high-level quantum chemical calculations and we have generated thousands of examples relating to the reactivity of molecules for a specific chemical reaction. This project will evaluate a variety of machine learning algorithms trained on these data and, most crucially, will develop and implement techniques for computing the uncertainty in the prediction.

The algorithms developed in the project will be implemented in our ai4green electronic lab notebook, which is available as a web-based application:ai4green.appand which is the focus of a major ongoing project supported by the Royal Academy of Engineering. The results of the project will help chemists to make molecules in a greener and more sustainable fashion, by identifying routes with fewer steps or routes involving more benign reagents.

Minimum Requirements:
Applicants should have, or be expected to achieve, at least a 2:1 Honours degree (or equivalent if from other countries) in Chemistry or Mathematics or a related subject. A MChem/MSc-4-year integrated Masters, a BSc + MSc or a BSc with substantial research experience will be highly advantageous. Experience in computer programming will be essential. The studentship is open to home students only.

The deadline for a formal application is 5th May. Start date: 1st Oct 2025. Annual tax-free stipend based on the UKRI rate (currently £20,780) plus fully-funded PhD tuition fees for the 3.5 years.

Supervisors:Jonathan Hirst (School of Chemistry), Simon Preston (Mathematical Sciences).

For further details and to arrange an interview please contact Jonathan Hirst (School of Chemistry).

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