MDN prediction performance on the blind-test set. Upper left: two-dimensional density distribution of Δν_pred vs. Δν_ref. Upper right: two-dimensional density distribution of ΔΠ_1,pred vs. ΔΠ_1,ref. The black dashed lines indicate the 1:1 relation. Lower left: histograms of the predicted (red dashed line) and reference-label (black solid line) ΔΠ₁ values. Lower right: two-dimensional density distribution of predicted (color scale) and reference-label (red contour) ΔΠ₁ vs. Δν. The positions corresponding to ΔΠ₁ = 250 s and Δν = 5.5 μHz are marked.