Advances in Directional Statistics

Celebrating Kanti Mardia's 90th birthday

10-12 September 2025

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ADISTA 2025

Program with 25-minute Slots (31 Speakers)
Day 1 Day 2 Day 3
8:30 – 8:45 Registration 9:00 – 10:15 Session 5 9:00 – 10:15 Session 8
8:45 – 9:00 Opening event 10:15 – 10:45 Coffee break 10:15 – 10:45 Coffee break
9:00 – 10:15 Session 1 10:45 – 11:35 Session 6 10:45 – 12:00 Session 9
10:15 – 10:45 Coffee break 11:35 – 12:00 Coffee break 12:00 – 13:30 Lunch
10:45 – 12:00 Session 2 12:00 – 13:15 Session 7 13:30 – 14:45 Session 10
12:00 – 13:30 Lunch 13:15 – 15:00 Lunch 14:45 – 15:15 Coffee break
13:30 – 14:20 Session 3 15:00 – 19:00 Tour of Luxembourg city 15:15 – 16:30 Session 11
14:20 – 15:30 Poster session 19:00 – Karaoke 17:30 – 18:30 Visit to the blast furnace
15:30 – 16:00 Coffee break 19:00 – Conference dinner
16:00 – 16:50 Session 4
19:00 – Reception

Day 1

Session 1 (09:00–10:15), Chair: John Kent
Kanti V. Mardia – The projected normal signal-to-noise ratio distribution with applications to biomedical signal analysis.
Thomas Hamelryck – AlphaFold’s roots in directional statistics and probability kinematics.
Christophe Ley – A versatile trivariate wrapped Cauchy copula with applications to toroidal and cylindrical data.
Session 2 (10:45–12:00), Chair: Francesco Lagona
Toshihiro Abe – Expectation-Maximization for circular Cauchy distributions: a compact representation.
Sophia Loizidou – Optimal symmetry test on the torus.
Yolanda Larriba – FMM-Based modeling of peak width and wave duration in oscillatory signals over the circular domain.
Session 3 (13:30–14:20), Chair: Arthur Pewsey
Andrew Wood – Robust spherical regression in an extrinsic semiparametric framework.
Hang Liu – Quantiles and Quantile Regression on Riemannian Manifolds: a measure-transportation-based approach.
Poster session (14:20–15:30), Chair: Andrea Meilan Vila
Poster presentations: 2-minute flash presentations
  1. Marco Mingione – Copula-based hidden semi-Markov models for cylindrical time series
  2. Chiara Passamonti – Bias reduced kernel estimator with contaminated angles
  3. Dario Palumbo – The Dynamic Torus: with an application to wind and wave direction in the Adriatic
  4. Yoichi Miyata – A Hidden Markov Model with the Weibull-Extended Sine-Skewed von Mises Distributions as Emission Densities
  5. Priyanka Nagar – Regularized directional regression models: An environmental data application
  6. Diego Bolon Rodriguez – A likelihood ratio test for circular multimodality
  7. Najmeh Nakhaei Rad – Model-based clustering using a new mixture of circular regressions
  8. Tsuruta Yasuhito – Bias correction for kernel density estimation with spherical data
  9. Alberto Fernandez de Marcos – Testing uniformity on the sphere: from pairs to m-tuples
  10. Delene van Wyk – Insights into the construction of alternative bivariate cardioid distributions
  11. Xiangyu Wu – Asymmetry Analysis of Bilateral Shapes
  12. Houyem Demni – Robust measures of circular dispersion with an outlier detection rule
  13. Adelaide Figueiredo – Estimation and classification for a folded directional distribution
  14. José E. Chacón – Unconstrained kernel density estimation on the sphere
  15. Nicolas Conanec – Nonparametric estimation for censored circular data
  16. Adrian Fischer – Stein’s method of moments on the sphere
  17. Alfred Kume – Rolled Gaussian process models for curves on manifolds
Session 4 (16:00–16:50), Chair: Christophe Ley
Davy Paindaveine – Spherical Oja means.
Thomas Verdebout – Hypothesis testing around the uniform distribution on spheres.

Day 2

Session 5 (09:00–10:15), Chair: Shogo Kato
Francesco Lagona – Wrapped Cauchy copulas for bivariate directional densities.
Arthur Pewsey – On Jeffreys’s cardioid distribution.
Tomoaki Imoto – Method for constructing tractable distributions on the cylinder and its application to time series modelling.
Session 6 (10:45–11:35), Chair: Rosa Crujeiras
Thanh Mai Pham Ngoc – Adaptive estimation for nonparametric circular regression with errors in variables.
John Kent – Extreme behavior in the frequency modulated Möbius periodic regression model.
Session 7 (12:00–13:15), Chair: José Ameijeiras-Alonso
Rosa Crujeiras – TBA, probably something nonparametric.
Andrea Meilan Vila – Nonparametric density estimation for polyspherical data.
Maria Alonso-Peña – Parametrically guided kernel density estimation on the sphere.

Day 3

Session 8 (09:00–10:15), Chair: Giovanna Jona Lasinio
Claudia Redenbach – Mathematical Morphology on directional data.
Stephan Huckemann – Non-Euclidean Statistics for Learning Structural Biology.
Florian Pfaff – Recursive Bayesian Estimation on Cartesian Products of Periodic and Euclidean Domains.
Session 9 (10:45–12:00), Chair: Gaspard Bernard
Giovanni Peccati – Functional convergence of geometric functionals of Gaussian fields.
Alessia Caponera – Reproducing Kernel approach to low-dose tomographic data.
Eduardo Garcia Portugues – Diffusions on the torus with exact likelihood inference.
Session 10 (13:30–14:45), Chair: Sophia Loizidou
Shogo Kato – Regression for spherical responses with linear and spherical covariates using a scaled link function.
Andriette Bekker – Regularized directional regression models: A simulation study.
José Ameijeiras-Alonso – A Semiparametric framework for circular regression with application to bird orientation.
Session 11 (15:15–16:30), Chair: Davy Paindaveine
Marco Geraci – Generalized Laplace regression for cylindrical responses with an application to road traffic accidents.
Stefania Fensore – Reducing boundary bias on curved support via domain transformation.
Ashis Sengupta – High volatility flexible families of probability distributions for directional data.
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