webinars

Algorithmic Fairness

2023-09-19

Algorithmic Fairness Tuesday, October 3rd, 2023, 7:30 PT / 10:30 ET / 16:30 CET 2nd joint webinar of the IMS New Researchers Group, Young Data Science Researcher Seminar Zürich and the YoungStatS Project. When & Where: […] Speakers: […] Abstract: Multi-calibration is a powerful and…

graphical-models

Graphical modeling of stochastic processes driven by correlated noise

Søren Wengel Mogensen and Niels Richard Hansen / 2022-10-27

Complex systems are difficult to understand. We need good tools to study the interactions that define such systems. In this blog post, we describe how the framework in Mogensen and Hansen (2022) provides such a tool. This summary of the paper is meant to be accessible for readers with some…

webinars

Recent challenges in model specification testing based on different data structures

2022-09-29

Recent challenges in model specification testing based on different data structures Wednesday, November 9th, 8:00 PT / 11:00 ET / 17:00 CET Model specification testing is one of the essential methodological tasks in statistics. Recently, with the development of different data structures, envisioning…

optimal-transport

Non-Homogeneous Poisson Process Intensity Modeling and Estimation using Measure Transport

Tin Lok James Ng / 2022-09-19

A NHPP defined on \({\cal S} \subset \mathbb{R}^{d}\) can be fully characterized through its intensity function \(\lambda: {\cal S} \rightarrow [0, \infty)\). We present a general model for the intensity function of a non-homogeneous Poisson process using measure transport. The model finds its roots…

estimation

Minimax Estimation and Identity Testing of Markov Chains

Geoffrey Wolfer / 2022-09-18

We briefly review the two classical problems of distribution estimation and identity testing (in the context of property testing), then propose to extend them to a Markovian setting. We will see that the sample complexity depends not only on the number of states, but also on the stationary and…

statistics

A Tale of Two Parasites...one statistician's career journey

Peter J. Diggle, Emanuele Giorgi, Julienne Atsame, Sylvie Ntsame Ella, Kisito Ogoussan, and Katherine Gass / 2020-10-05

Vector-borne diseases have long presented major challenges to the health of rural communities in the wet tropical regions of the world, but especially in sub-Saharan Africa. In this paper, we describe the contribution that statistical modelling has made to the global elimination programme for one…