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Table 6 System 100 year failure probability (P f ) and accuracy measurements (RMSE) using the response surface with different sample sizes

From: A probabilistic bridge safety evaluation against floods

Sample size Sample range P f (LS-SVM) P f (Bayesian LS-SVM) RMSE (%)
#5
50 μ ± 2σ 2.57 × 10−1 2.51 × 10−1 3.45
80 μ ± 2σ 2.42 × 10−1 2.41 × 10−1 1.10
100 μ ± 2σ 2.38 × 10−1 2.37 × 10−1 0.65
120 μ ± 2σ 2.34 × 10−1 2.34 × 10−1 0.45
150 μ ± 3σ 2.33 × 10−1 2.32 × 10−1 0.32