Research Article

# Prediction of Ultimate Bearing Capacity of Cohesionless Soils Using Soft Computing Techniques

## Table 1

Performance evaluation criteria.
 Evaluation criteria Equation Coefficient of correlation (R) β π = π π = 1 ( π¦ π π β π¦ π ) ( π¦ π π β π¦ π ) ξ β π π = 1 ( π¦ π π β π¦ π ) 2 ξ β π π = 1 ( π¦ π π β π¦ π ) 2 Coefficient of efficiency (E) β πΈ = 1 β π π = 1 ( π¦ π π β π¦ π π ) 2 β π π = 1 ( π¦ π π β π¦ π ) 2 Root-mean-square error (RMSE) ξ R M S E = β π π = 1 ( π¦ π π β π¦ π π ) 2 π Mean bias error (MBE) β 1 M B E = π π β π = 1 ( π¦ π π β π¦ π π ) Percentage relative error (RE) R E = ( π¦ π β π¦ π ) π¦ π β 1 0 0 Percentage mean absolute relative error (MARE) 1 M A R E = π π β π = 1 | R E |

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