Author

Isaac Xu

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Jul 2026

Covariance Last-Layer Ensembles: Function-Space Diversity for Efficient Uncertainty Quantification

Viewing OC as a last-layer ensemble also organizes detectors into a two-axis taxonomy and exposes the OC score as a magnitude, motivating a scale-invariant, label-free direction score that repairs its near-OOD failure.

H. M. Gillis, Isaac Xu, Gabriel Spadon et al. · arXiv.org · 0 citations