Results show the combined 2D interpolative method and Gaussian Naïve Bayes algorithm has reduced both types of errors. From Table 5, it was obvious that the mean relative error\(\overset{\overline{}}{\epsilon_{\text{Rev}}}\) was revised from -8.3% to -0.6%. The standard deviation \(\sigma_{\text{Rev}}\) has decreased from ±20.3% to ±13.7%. It has improved the mean flow coefficient\(\overset{\overline{}}{C_{\text{\ Rev}}}\) from 0.900 to 0.994.