3 papers
stat.ME2026
ICSpyLab: A Python package for invariant coordinate selection
Colombe Becquart
Invariant coordinate selection (ICS) is a dimensionality reduction technique based on the joint diagonalization of two scatter matrices. While principal component analysis relies s…
stat.ME2026
A Note on the Folding Test of Unimodality: limitation and improved alternative
Colombe Becquart, Aurore Archimbaud, Anne M. Ruiz +1
This note addresses a key limitation of the Folding Test of Unimodality (FTU). In specific univariate mixture settings, the folding-based criterion can systematically fail, misclas…
stat.ME2025
Invariant Coordinate Selection and Fisher discriminant subspace beyond the case of two groups
Colombe Becquart, Aurore Archimbaud, Anne Ruiz-Gazen +2
Invariant Coordinate Selection (ICS) is a multivariate technique that relies on the simultaneous diagonalization of two scatter matrices. It serves various purposes, including its…