4 papers
On the Impossibility of Estimating the Average Mixing Time
Nathan A. Judd, Amedeo Roberto Esposito
We establish nearly-matching converse bounds on the sample complexity of estimating the average mixing time of a Markov chain from a single stationary trajectory. Unlike the worst-…
Subordinated Wright-Fisher Priors
Nathan A. Judd, Dario Spanò
A new class of time-dependent Dirichlet priors is introduced as a generalisation of the Wright-Fisher diffusion, allowing discontinuities in the trajectories, as well as non-Markov…
Neural Methods for Multiple Systems Estimation Models
Joseph Marsh, Nathan A. Judd, Lax Chan +1
Estimating the size of hidden populations using Multiple Systems Estimation (MSE) is a critical task in quantitative sociology; however, practical application is often hindered by…
Statistical Crime Linkage: Evaluating approaches within the Covenant for Using AI in Policing
Nathan A. Judd, Amy V. Tansell, Benjamin Costello +3
Linking crimes by modus operandi has long been employed as an effective tool for crime investigation. The standard statistical method that underpins statistical crime linkage has b…