ResearchBenchmarksRegression on Synthetic Coupled Target off-sphere (held-out split)Regression on Synthetic Coupled Target off-sphere (held-out split)Follow0.034RMSEE-kernel0.03080.05240.0740.0956Jun 8, 2026Evaluation resultsMethodMethodLinksRMSEE-kernelkernel_variant=exactkernel_variant=exact2026.060.034IMQkernel=IMQkernel=IMQ2026.060.036Gaussiankernel=Gaussiankernel=Gaussian2026.060.038Nyström-Ekernel_variant=Nyström...kernel_variant=Nyström approximation2026.060.043RAYkernel_variant=sketchedkernel_variant=sketched2026.060.078polynomialkernel=polynomialkernel=polynomial2026.060.114