2 papers
math.ST2026
Logistic lasso regression with nearest neighbors for gradient-based dimension reduction
Touqeer Ahmad, François Portier, Gilles Stupfler
This paper investigates a new approach to estimate the gradient of the conditional probability given the covariates in the binary classification framework. The proposed approach co…
stat.ML2025
Concentration and excess risk bounds for imbalanced classification with synthetic oversampling
Touqeer Ahmad, Mohammadreza M. Kalan, François Portier +1
Synthetic oversampling of minority examples using SMOTE and its variants is a leading strategy for addressing imbalanced classification problems. Despite the success of this approa…