ResearchBenchmarksEigenfunction recovery on S1 sigma = 0.05 N=500 (test)Eigenfunction recovery on S1 sigma = 0.05 N=500 (test)Follow0.787SubR2CV+RFF0.737080.750040.7630.77596Apr 20, 2026Evaluation resultsMethodMethodLinksSubR2CV+RFFCV kernel=Matérn-3/2,...CV kernel=Matérn-3/2, CV sigma=71.12026.040.787Uni+Nysp=60p=602026.040.745Uni+RFFprff=300prff=3002026.040.739