1 code implementation • 10 Oct 2023 • Mouïn Ben Ammar, Nacim Belkhir, Sebastian Popescu, Antoine Manzanera, Gianni Franchi
Detecting out-of-distribution (OOD) data is a critical challenge in machine learning due to model overconfidence, often without awareness of their epistemological limits.
no code implementations • pproximateinference AABI Symposium 2022 • Sebastian Popescu, Ben Glocker, Mark van der Wilk
We propose a new variational lower bound for performing inference in sparse Student's T Processes that does not require computationally intensive operations such as matrix inversions or log determinants of matrices.
no code implementations • pproximateinference AABI Symposium 2021 • Sebastian Popescu, David J. Sharp, James H. Cole, Ben Glocker
We propose a decoupling in Reproducing Kernel Hilbert Space of the parametric and non-parametric components of Sparse Gaussian Processes.
no code implementations • 28 Oct 2020 • Sebastian Popescu, David Sharp, James Cole, Ben Glocker
Stacking Gaussian Processes severely diminishes the model's ability to detect outliers, which when combined with non-zero mean functions, further extrapolates low non-parametric variance to low training data density regions.