3 papers
math.ST2023
A Distribution Free Truncated Kernel Ridge Regression Estimator and Related Spectral Analyses
Asma Ben Saber, Abderrazek Karoui
It is well known that kernel ridge regression (KRR) is a popular nonparametric regression estimator. Nonetheless, in the presence of a large data set with size the KRR es…
math.ST2022
A Stable Jacobi polynomials based least squares regression estimator associated with an ANOVA decomposition model
Mohamed Jebalia, Abderrazek Karoui
In this work, we construct a stable and fairly fast estimator for solving non-parametric multidimensional regression problems. The proposed estimator is based on the use of multiva…
math.CA2017
The finite Hankel transform operator: Some explicit and local estimates of the eigenfunctions and eigenvalues decay rates
Mourad Boulsane, Abderrazek Karoui
For fixed real numbers the finite Hankel transform operator, denoted by is given by the integral operator defined on with kern…