Aller au menu Aller au contenu Aller à la recherche
aA - +Imprimer la page
Chargement Évènements
  • Cet évènement est passé


Antoine Godichon-Baggioni (Sorbonne Université), « A robust model-based clustering based on the geometric median and the Median Covariation Matrix »

« Tous les Évènements

mercredi 11 janvier 2023 mercredi 11 janvier 2023

Grouping observations into homogeneous groups is a recurrent task in statistical data analysis. We consider Gaussian Mixture Models, which are the most famous parametric model-based clustering method. We propose a new robust approach for model-based clustering, which consists in a modification of the EM algorithm (more specifically, the M-step) by replacing the estimates of the mean and the variance by robust versions based on the median and the median covariation matrix.


Log In

Create an account