Figure 1

Regression benchmark results. Cross-validated and test-set standardized mean-squared error (MSE) performance over 100 independent replications. Boxplots display results from the 100 replications for COBRA (gray square symbol), RF (red square symbol), optimized random forests RFopt (blue square symbol), and synthetic random forests SRF (■). Standardized MSE obtained by dividing MSE by the variance of the Y-response and multiplying by 100.