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Based on the complementation of advantages and disadvantages of genetic algorithms (GA) and neural network (NN), a new hybrid genetic algorithms and neural network model (GANN) is presented in this paper. In this model, the relationship model is established by error back propagation network (BP), the connection weights and thresholds of BP are optimized by GA, and then the precision of model is increased...
Based on the theory of fuzzy mathematics, a fuzzy comprehensive expert system is built for assessing the damage of the in-service bridges. In addition to the bridge damage factors of the conventional methods, bridge service life and loads change are considered in the expert system. The Analysis Hierarchy Process (AHP) is used to determine the weight of different index factors. The feasibility and...
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