Search Results for author: Sebastian Popescu

Found 4 papers, 1 papers with code

NECO: NEural Collapse Based Out-of-distribution detection

1 code implementation10 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.

Out-of-Distribution Detection

Matrix Inversion free variational inference in Conditional Student's T Processes

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.

valid Variational Inference

Hierarchical Gaussian Processes with Wasserstein-2 Kernels

no code implementations28 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.

Gaussian Processes Out-of-Distribution Detection

Cannot find the paper you are looking for? You can Submit a new open access paper.