2018 – present - Professor of Applied Statistics, University of Oxford
2002 – present - Professor of Statistical Epidemiology, Imperial College London
2000 – 2002 - Reader in Epidemiological Statistics, Imperial College London
1995 – 2000 - Head of Statistics Unit (Reader in Statistical Epidemiology in 2000), Wellcome Trust Centre for the Epidemiology of Infectious Disease, University of Oxford
1998 – 2000 - Lecturer in Biology, St Catherine’s College, University of Oxford
1992 – 1995 - Lecturer in Statistics, University of Edinburgh

• Infectious disease epidemiology and control
• Real-time outbreak analysis and response
• Disease transmission dynamics
• Science-policy interface
   

I am a Professor of Statistics at the University of Oxford and a Tutorial Fellow of Keble College.

• Statistical machine learning
• Computational statistics
• Bayesian statistics
• Bayesian nonparametrics
• Network analysis

I am interested in the development of statistical models and computational procedures for the analysis of structured data. I have a particular interest in Bayesian nonparametrics and Monte Carlo methods.

I received my PhD in Statistics from the University of Washington in 2011, and was a Postdoctoral Research Fellow at the Statistical Laboratory in Cambridge from 2011 to 2013.

My research is in understanding how multivariate statistical models – such as Bayesian network models, marginal models and latent variable models – can be used to learn about the world around us. In addition, I am interested in how these methods can be applied to epidemiology, medicine and the social sciences.

This work has led in various directions: finding implications of models that can be tested in data, and showing that no further constraints exist; determining whether quantities of scientific interest are identifiable; understanding when marginal models can be properly specified, simulated from, and fitted; and understanding when efficient model selection is possible.  A particular area of interest recently has been simulating from marginal causal models, and applications to combining evidence from different types of study.

I am also interested in the mathematical and statistical properties of more general latent variable models, conditional independence, and model parametrizations.