7 citations
4 papers
HaloAE: An HaloNet based Local Transformer Auto-Encoder for Anomaly Detection and Localization
E. Mathian, H. Liu, L. Fernandez-Cuesta +3
Unsupervised anomaly detection and localization is a crucial task as it is impossible to collect and label all possible anomalies. Many studies have emphasized the importance of in…
On the use of cross-validation for the calibration of the adaptive lasso
Ballout Nadim, Etievant Lola, Viallon Vivian
The adaptive lasso refers to a class of methods that use weighted versions of the -norm penalty, with weights derived from an initial estimate of the parameter vector to be es…
On some limitations of probabilistic models for dimension-reduction: Illustration in the case of probabilistic formulations of partial least squares
Lola Etievant, Vivian Viallon
Partial Least Squares (PLS) refer to a class of dimension-reduction techniques aiming at the identification of two sets of components with maximal covariance, to model the relation…
Sparse estimation for case-control studies with multiple subtypes of cases
Nadim Ballout, Cedric Garcia, Vivian Viallon
The analysis of case-control studies with several subtypes of cases is increasingly common, e.g. in cancer epidemiology. For matched designs, we show that a natural strategy is bas…