Current Position

I am presently a Lecturer (in the Commonwealth usage) at the School of Mathematics and Applied Statistics of University of Wollongong, in New South Wales, Australia.

Contents

This site has information on my academic writing; presentations I have made; scientific software on which I have worked; and my full academic CV.

Current Research Topics

Generative models for networks

I work in development and efficient implementation of generative models for social networks and social network processes, with applications in epidemiology and the social sciences.

Dynamic networks

Models for networks that evolve over time have manifold application in areas as diverse as epidemiology, social sciences, and marketing. A major component of my research is the development of realistic yet parsimonious models for the evolution of social networks, and fitting them based on available data. These models have been applied to the modeling and simulation of disease spread.

Exponential-family random graph models

Exponential-family random graph models provide a rigorous and flexible framework for modeling network structure and evolution, but have the disadvantage of being computationally intensive to fit. My research interest relating to these models is extending them to valued and rank data, diagnostics, and efficient implementation that takes advantage of their conditional dependence structure.

Latent space models

A powerful approach to modeling complex network structure is through latent variable models, in which an unobserved (latent) social space in which actors interact and/or unobserved attributes of actors are postulated that account for observed network structure. My interest is in extending them to dynamic network data, applying them to voting data, and efficient Bayesian inference.