Prediction of California Bearing Ratio of Granular Soil by Multivariate Regression and Gene Expression Programming

Table 9

Statistical performances of the proposed GEP models.

Model id	SI	IOA	Bias
GEP1	0.252231	0.958626	−33.5488
GEP2	0.256308	0.933823	−33.7025
GEP3	0.522693	0.984099	−46.5304
GEP4	0.819813	0.928315	−16.7601