no code implementations • 7 Mar 2023 • Davit Gogolashvili, Matteo Zecchin, Motonobu Kanagawa, Marios Kountouris, Maurizio Filippone
Classic results show that the IW correction is needed when the model is parametric and misspecified.
no code implementations • 29 Nov 2022 • Arya Akhavan, Davit Gogolashvili, Alexandre B. Tsybakov
We propose a new method for estimating the minimizer $\boldsymbol{x}^*$ and the minimum value $f^*$ of a smooth and strongly convex regression function $f$ from the observations contaminated by random noise.
no code implementations • 18 Oct 2022 • Davit Gogolashvili, Bogdan Kozyrskiy, Maurizio Filippone
We develop a novel framework to accelerate Gaussian process regression (GPR).
no code implementations • 18 Oct 2022 • Davit Gogolashvili
In the latter cases, a minimax optimal rates are achieved by importance weighted kernel ridge regression (IW-KRR) in both, covariate and target shift scenarios.