Table 8 Mean model with the level of uncertainty in the posterior utilizing individual inversion of MT data from vPSOGWO, compared with results inverted by Master curve42, Tikhonov regularization42 and Chandra et al.15 over Chatham, New Brunswick, Canada.
From: Nature-inspired stochastic hybrid technique for joint and individual inversion of DC and MT data
Layer parameters | Search range | Inverted value | |||||
|---|---|---|---|---|---|---|---|
Lower | Upper | Master curve (Roy and Elliot42) | Tikhonov regularization (Roy43) | Chandra et al.15 | vPSOGWO (PDF > 68.27% CI) | ||
PSO | GWO | ||||||
\({\rho }_{1}\) (Ωm) | 100 | 5000 | 1000 | 581 | 537.13 | 528.97 | 602.87 ± 106.08 |
\({\rho }_{2}\) (Ωm) | 100 | 5000 | 1500.00 | 2794 | 2705.08 | 3199.85 | 2042.39 ± 512.42 |
\({\rho }_{3}\) (Ωm) | 1 | 200 | 56.00 | 48 | 112.72 | 69.49 | 106.93 ± 14.69 |
\({\rho }_{4}\) (Ωm) | 50 | 500 | 300.00 | 270 | 223.46 | 318.09 | 271.28 ± 27.13 |
\({\rho }_{5}\) (Ωm) | 100 | 500 | 180.00 | 175 | 134.34 | 174.93 | 154.56 ± 17.67 |
\({h}_{1}\) (m) | 0.01 | 2 | 1.00 | 0.44 | 0.40 | 0.40 | 0.58 ± 0.30 |
\({h}_{2}\) (m) | 0.1 | 5 | 1.50 | 0.64 | 0.67 | 0.68 | 0.98 ± 0.33 |
\({h}_{3}\) (m) | 1 | 15 | 8.05 | 2.98 | 1.81 | 1.98 | 3.37 ± 0.84 |
\({h}_{4}\) (m) | 10 | 100 | 30.0 | 29.22 | 30.86 | 26.18 | 30.63 ± 8.29 |
Fitness (NRMS) | NRMS = 0.073 | NRMS = 0.058 | RMS = 0.0224 | ||||
