A hybrid computational intelligence approach to predict spectral acceleration
- Publication Type:
- Journal Article
- Measurement: Journal of the International Measurement Confederation, 2019, 138 pp. 578 - 589
- Issue Date:
|A hybrid computational intelligence approach to predict spectral acceleration.pdf||Published Version||2.47 MB|
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© 2019 Elsevier Ltd In this study, a new explicit method has been suggested to predict the spectral acceleration characteristic of strong ground-motions based on hybridizing genetic algorithm (GA), multilayer perceptron neural network (MLPNN), and regression analysis (RA), called GA-NN-RA. The predictor variables encompass a period of vibration, magnitude, closest distance co-seismic rupture, shear wave velocity averaged over the top 30 m and flag for reverse faulting earthquakes. To develop the model, a data set of strong ground-motion records gathered by Pacific Earthquake Engineering Research Center has been employed. For confirmation and efficiency of proposed model, an additional set of test that is not involved in the modeling has been applied. The obtained results using GA-NN-RA show good accuracy in comparison with other ground motion models. Also, the proposed model is capable of evaluating the spectral acceleration for any records without restriction in a period of vibration.
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