Comparison between five-fold and ten-fold CV results for the temperature-shell CNN model. Left: Detection probability as a function of injected orbital period and RV semi-amplitude for N_folds = 5 (CV) and N_folds = 10 (CV10), respectively. Right: Corresponding relative amplitude differences between injected and recovered signals. Overall, increasing the number of folds from five to ten does not lead to a substantial improvement in detection performance or amplitude recovery, particularly above ~15 cm s⁻¹, while incurring a higher computational cost.