ResearchBenchmarksPosterior Covariance Estimation on Synthetic OOD d, NPosterior Covariance Estimation on Synthetic OOD d, NFollow0.0175Covariance Frobenius ErrorAFIN0.0160480.0258490.035650.045451May 26, 2026Evaluation resultsMethodMethodLinksCovariance Frobenius ErrorWall-clock Time (s)AFINCorrection=SNISCorrection=SNIS2026.050.01750.45NUTS2026.050.0222157FRVI2026.050.0248100AFINCorrection=NoneCorrection=None2026.050.05380.1