no code implementations • 30 Oct 2023 • Nathael Da Costa, Cyrus Mostajeran, Juan-Pablo Ortega, Salem Said
This work aims to prove that the classical Gaussian kernel, when defined on a non-Euclidean symmetric space, is never positive-definite for any choice of parameter.
no code implementations • 20 Oct 2023 • Nathael Da Costa, Cyrus Mostajeran, Juan-Pablo Ortega, Salem Said
Classical kernel methods are based on positive-definite kernels, which map data spaces into reproducing kernel Hilbert spaces (RKHS).
