no code implementations • 4 Jun 2020 • Alessio Serafini, Thomas Brendan Murphy, Luca Scrucca
Gaussian Mixture models (GMMs) are a powerful tool for clustering, classification and density estimation when clustering structures are embedded in the data.
no code implementations • 10 Feb 2020 • Luca Scrucca
In the modal approach to clustering, clusters are defined as the local maxima of the underlying probability density function, where the latter can be estimated either non-parametrically or using finite mixture models.
no code implementations • 27 Dec 2019 • Luca Scrucca, Alessio Serafini
We show that this semi-parametric approach to PP is flexible and allows highly informative structures to be detected, by projecting multivariate datasets onto a subspace, where the data can be feasibly visualised.
no code implementations • 10 Aug 2015 • Luca Scrucca
A new dimension reduction method based on Gaussian finite mixtures is proposed as an extension to sliced inverse regression (SIR).
no code implementations • 7 Aug 2015 • Luca Scrucca
Information on the dimension reduction subspace is obtained from the variation on group means and, depending on the estimated mixture model, on the variation on group covariances.