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Nick Irons

PhD
Florence Nightingale Bicentenary Fellow in Computational Statistics and Machine Learning

I am a statistician developing (primarily Bayesian) methods to tackle problems in causal inference, model selection and hypothesis testing, nonparametric and high-dimensional statistics, design and analysis of experiments, and modeling of complex data (eg hierarchical, spatiotemporal, mechanistic, and infectious disease models). My work is often motivated by applications in the health and social sciences.

From a methodological perspective, I am interested in expanding Bayesian statistics into new frontiers both through principled modeling and by improving the efficiency and scalability of posterior inference algorithms (eg by incorporating machine learning methods into Bayesian workflow, finding useful parametrisations, or developing sampling algorithms tailored to specific models).

From a modeling perspective, I enjoy drawing on my training in physics to build scientifically-informed models of complex data. I have extensive experience with statistical modeling of data described by differential equations, whether the SIR equations or those of Ornstein-Uhlenbeck, Hamilton, Euler-Lagrange, and Schrödinger. In applied work, I endeavor to provide decision-makers with statistical tools and actionable information by which to make informed choices.

Publications

Friday, 27 June 2025
Irons, N. (2025) “Irons’ contribution to the Discussion of ‘Some statistical aspects of the Covid-19 response’ by Wood et al”, Journal of the Royal Statistical Society Series A: Statistics in Society [Preprint].
Nick Irons
Wednesday, 30 April 2025
Metodiev, M. et al. (2025) “Easily Computed Marginal Likelihoods for Multivariate Mixture Models Using the THAMES Estimator”, arXiv.
Nick Irons
Wednesday, 01 January 2025
Irons, N. and Cinelli, C. (2025) “Causally Sound Priors for Binary Experiments”, Bayesian Analysis, -1(-1).
Nick Irons
Monday, 18 November 2024
Irons, N. and Raftery, A. (2024) “US COVID-19 school closure was not cost-effective, but other measures were”, arXiv.
Nick Irons
Monday, 01 January 2024
Metodiev, M. et al. (2024) “Easily computed marginal likelihoods from posterior simulation using the THAMES estimator”, Bayesian Analysis, 2024, pp. 1–28.
Nick Irons
Friday, 25 August 2023
Irons, N. and Cinelli, C. (2023) “Causally Sound Priors for Binary Experiments”, arXiv.
Nick Irons
Monday, 15 May 2023
Metodiev, M. et al. (2023) “Easily Computed Marginal Likelihoods from Posterior Simulation Using the THAMES Estimator”, arXiv.
Nick Irons
Wednesday, 01 March 2023
Vamva, E. et al. (2023) “A lentiviral vector B cell gene therapy platform for the delivery of the anti-HIV-1 eCD4-Ig-knob-in-hole-reversed immunoadhesin.”, Molecular therapy. Methods & clinical development, 28, pp. 366–384.
Nick Irons
Saturday, 01 January 2022
Irons, N. et al. (2022) “Triangular Flows for Generative Modeling: Statistical Consistency, Smoothness Classes, and Fast Rates”, in Proceedings of Machine Learning Research, pp. 10161–10195.
Nick Irons
Friday, 31 December 2021
Irons, N. et al. (2021) “Triangular Flows for Generative Modeling: Statistical Consistency, Smoothness Classes, and Fast Rates”, arXiv.
Nick Irons
Sunday, 01 August 2021
Irons, N. and Raftery, A. (2021) “Estimating SARS-CoV-2 infections from deaths, confirmed cases, tests, and random surveys.”, Proceedings of the National Academy of Sciences of the United States of America, 118(31), p. e2103272118.
Nick Irons
Sunday, 21 February 2021
Irons, N. and Raftery, A. (2021) “Estimating SARS-CoV-2 Infections from Deaths, Confirmed Cases, Tests, and Random Surveys”, arXiv.
Nick Irons
Thursday, 01 November 2018
Baker, B. et al. (2018) “Adaptive rotating-wave approximation for driven open quantum systems”, Physical Review A, 98(5), p. 052111.
Nick Irons
Friday, 03 August 2018
Baker, B. et al. (2018) “Adaptive Rotating-Wave Approximation for Driven Open Quantum Systems”, arXiv.
Nick Irons
Sunday, 01 April 2018
Earnest, N. et al. (2018) “Realization of a Λ System with Metastable States of a Capacitively Shunted Fluxonium.”, Physical review letters, 120(15), p. 150504.
Nick Irons
Monday, 03 July 2017
Earnest, N. et al. (2017) “Realization of a $\Lambda$ system with metastable states of a capacitively-shunted fluxonium”, arXiv.
Nick Irons
This is the alt text
Email
nicholas.irons@stats.ox.ac.uk
Links
Google Scholar
GitHub
Twitter
Files

Recent

news
28 May 2025

Douglas Leasure and Nicholas Irons to speak at Migration Oxford event

Nick Irons

PhD
Florence Nightingale Bicentenary Fellow in Computational Statistics and Machine Learning
This is the alt text
Email
nicholas.irons@stats.ox.ac.uk
Links
Google Scholar
GitHub
Twitter

I am a statistician developing (primarily Bayesian) methods to tackle problems in causal inference, model selection and hypothesis testing, nonparametric and high-dimensional statistics, design and analysis of experiments, and modeling of complex data (eg hierarchical, spatiotemporal, mechanistic, and infectious disease models). My work is often motivated by applications in the health and social sciences.

From a methodological perspective, I am interested in expanding Bayesian statistics into new frontiers both through principled modeling and by improving the efficiency and scalability of posterior inference algorithms (eg by incorporating machine learning methods into Bayesian workflow, finding useful parametrisations, or developing sampling algorithms tailored to specific models).

From a modeling perspective, I enjoy drawing on my training in physics to build scientifically-informed models of complex data. I have extensive experience with statistical modeling of data described by differential equations, whether the SIR equations or those of Ornstein-Uhlenbeck, Hamilton, Euler-Lagrange, and Schrödinger. In applied work, I endeavor to provide decision-makers with statistical tools and actionable information by which to make informed choices.

Files

Publications

Friday, 27 June 2025
Irons, N. (2025) “Irons’ contribution to the Discussion of ‘Some statistical aspects of the Covid-19 response’ by Wood et al”, Journal of the Royal Statistical Society Series A: Statistics in Society [Preprint].
Nick Irons
Wednesday, 30 April 2025
Metodiev, M. et al. (2025) “Easily Computed Marginal Likelihoods for Multivariate Mixture Models Using the THAMES Estimator”, arXiv.
Nick Irons
Wednesday, 01 January 2025
Irons, N. and Cinelli, C. (2025) “Causally Sound Priors for Binary Experiments”, Bayesian Analysis, -1(-1).
Nick Irons
Monday, 18 November 2024
Irons, N. and Raftery, A. (2024) “US COVID-19 school closure was not cost-effective, but other measures were”, arXiv.
Nick Irons
Monday, 01 January 2024
Metodiev, M. et al. (2024) “Easily computed marginal likelihoods from posterior simulation using the THAMES estimator”, Bayesian Analysis, 2024, pp. 1–28.
Nick Irons
Friday, 25 August 2023
Irons, N. and Cinelli, C. (2023) “Causally Sound Priors for Binary Experiments”, arXiv.
Nick Irons
Monday, 15 May 2023
Metodiev, M. et al. (2023) “Easily Computed Marginal Likelihoods from Posterior Simulation Using the THAMES Estimator”, arXiv.
Nick Irons
Wednesday, 01 March 2023
Vamva, E. et al. (2023) “A lentiviral vector B cell gene therapy platform for the delivery of the anti-HIV-1 eCD4-Ig-knob-in-hole-reversed immunoadhesin.”, Molecular therapy. Methods & clinical development, 28, pp. 366–384.
Nick Irons
Saturday, 01 January 2022
Irons, N. et al. (2022) “Triangular Flows for Generative Modeling: Statistical Consistency, Smoothness Classes, and Fast Rates”, in Proceedings of Machine Learning Research, pp. 10161–10195.
Nick Irons
Friday, 31 December 2021
Irons, N. et al. (2021) “Triangular Flows for Generative Modeling: Statistical Consistency, Smoothness Classes, and Fast Rates”, arXiv.
Nick Irons
Sunday, 01 August 2021
Irons, N. and Raftery, A. (2021) “Estimating SARS-CoV-2 infections from deaths, confirmed cases, tests, and random surveys.”, Proceedings of the National Academy of Sciences of the United States of America, 118(31), p. e2103272118.
Nick Irons
Sunday, 21 February 2021
Irons, N. and Raftery, A. (2021) “Estimating SARS-CoV-2 Infections from Deaths, Confirmed Cases, Tests, and Random Surveys”, arXiv.
Nick Irons
Thursday, 01 November 2018
Baker, B. et al. (2018) “Adaptive rotating-wave approximation for driven open quantum systems”, Physical Review A, 98(5), p. 052111.
Nick Irons
Friday, 03 August 2018
Baker, B. et al. (2018) “Adaptive Rotating-Wave Approximation for Driven Open Quantum Systems”, arXiv.
Nick Irons
Sunday, 01 April 2018
Earnest, N. et al. (2018) “Realization of a Λ System with Metastable States of a Capacitively Shunted Fluxonium.”, Physical review letters, 120(15), p. 150504.
Nick Irons
Monday, 03 July 2017
Earnest, N. et al. (2017) “Realization of a $\Lambda$ system with metastable states of a capacitively-shunted fluxonium”, arXiv.
Nick Irons

Recent

news
28 May 2025

Douglas Leasure and Nicholas Irons to speak at Migration Oxford event

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