Title
Applying various hybrid intelligent systems to evaluate and predict slope stability under static and dynamic conditions
Abstract
The evaluation and precise prediction of safety factor (SF) of slopes can be useful in designing/analyzing these important structures. In this study, an attempt has been made to evaluate/predict SF of many homogenous slopes in static and dynamic conditions through applying various hybrid intelligent systems namely imperialist competitive algorithm (ICA)-artificial neural network (ANN), genetic algorithm (GA)-ANN, particle swarm optimization (PSO)-ANN and artificial bee colony (ABC)-ANN. In fact, ICA, PSO, GA and ABC were used to adjust weights and biases of ANN model. In order to achieve the aim of this study, a database composed of 699 datasets with 5 model inputs including slope gradient, slope height, friction angle of soil, soil cohesion and peak ground acceleration and one output (SF) was established. Several parametric investigations were conducted in order to determine the most effective factors of GA, ICA, ABC and PSO algorithms. The obtained results of hybrid models were check considering two performance indices, i.e., root-mean-square error and coefficient of determination \((R^{2})\). To evaluate capability of all hybrid models, a new system of ranking, i.e., the color intensity rating, was developed. As a result, although all predictive models are able to approximate slope SF values, PSO-ANN predictive model can perform better compared to others. Based on \(R^{2}\), values of (0.969, 0.957, 0.980 and 0.920) were found for testing of ICA-ANN, ABC-ANN, PSO-ANN and GA-ANN predictive models, respectively, which show higher efficiency of the PSO-ANN model in predicting slope SF values.
Year
DOI
Venue
2019
10.1007/s00500-018-3253-3
soft computing
Keywords
Field
DocType
Slope stability, Hybrid model, Genetic algorithm, Particle swarm optimization, Imperialist competitive algorithm, Artificial bee colony
Particle swarm optimization,Mathematical optimization,Ranking,Computer science,Slope stability,Algorithm,Parametric statistics,Coefficient of determination,Artificial neural network,Imperialist competitive algorithm,Genetic algorithm
Journal
Volume
Issue
ISSN
23
14
1433-7479
Citations 
PageRank 
References 
15
0.67
19
Authors
6