ResearchBenchmarksPosterior Covariance Estimation on Synthetic OOD NPosterior Covariance Estimation on Synthetic OOD NFollow0.0012Covariance Frobenius ErrorAFIN0.0009640.002220.0034750.004731May 26, 2026Evaluation resultsMethodMethodLinksCovariance Frobenius ErrorWall-clock Time (s)AFINCorrection=SNISCorrection=SNIS2026.050.00120.25NUTS2026.050.002295FRVI2026.050.002932AFINCorrection=NoneCorrection=None2026.050.00580.02