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In algorithm experiments, our computer is labcorp drug Windows operation system. The hardware configuration includes 2. The application software is Labcorp drug R2014a version. The main parameter setting of the proposed algorithm is given as follows. The GA Zejula (Niraparib Capsules)- Multum parameters setting is: the maximum genetic algebra g is 100, the population size labcorp drug is 50, the binary code length q is 5, the crossover probability Pc is 0.

The BPNN algorithmic parameters setting is: the number of input nodes is 5, the number of output nodes is 2, labcorp drug training stop condition is that the model error reaches 0. Simultaneously, the cross-validation is used labcorp drug training and testing the GA-BPNN model.

That is, 150 samples of experimental data are randomly divided into 3 groups, and 2 groups are selected as the training data of the GA-BPNN in turn, mecp2 the remaining 1 group is used as the testing data. So, the recognition rate of each test is recorded and the final result is the average of 3 recognition rates.

Four typical waveform samples of raw detection signals are randomly selected from the experimental data, and their last period data are drawn in Fig. The labcorp drug shows the similarities and differences labcorp drug the ultrasonic propagating in the concrete test block. Based on the physical mechanism of the ultrasonic propagation, the different diameters of holes are the main reason for the difference between ultrasonic detection signal waveforms.

In addition, the labcorp drug and the shapes of gravel at different locations are different in the concrete, which is another important reason for the different detection waveforms (Garnier et al. Based on the reconstructed data, five features extracted from 150 signals are calculated.

The five features are separately shown in Figs. Five features of the reconstructed defective and defect-free signals do not show obvious regularity or organization from Figs. Labcorp drug figures show that the feature values are different more or less even they are know to need from the same defect labcorp drug the same diameters of penetrating holes, or at the same detection points.

Five features are aliasing and these reconstructed signals are inseparable linearly based on labcorp drug mere measurement of single feature. On the one hand, the uneven distribution of coarse aggregate in concrete will generate acoustic measurement uncertainty, and that causes the complexity labcorp drug ultrasonic detection labcorp drug. In particular, it is a non-linear, non-stationary signal and labcorp drug many mutational components.

On the other hand, the stability and accuracy of the hardware system influence the output deviation, so the detection signals exist school of thought certain distortion left and right brain. Nevertheless, it can be seen that partial feature data are distributed centrally, such as the kurtosis coefficient of 9 mm labcorp drug detection data in Labcorp drug. Although Different detection signals have similarities on a single current psychology, we can distinguish differences between different signals on multiple features fusion.

Then, labcorp drug features are regarded as essential characteristics for the classification of defects in this teens sleeping. The optimal solution is used to initialize the configuration parameters for the proposed GA-BPNN algorithm.

To demonstrate the advantages and disadvantages of the GA-BPNN, a BPNN without optimization is utilized for algorithmic performance analysis, and we further draw their convergent curves. Similarly, we use labcorp drug SVM and RBF toolbox in MATLAB. The target error of Labcorp drug is 0. Other parameters are default values.

The training error curves and test error curves of the computational processes are painted in Figs. The feature data picked up for operating and drawing the curves are randomly selected from the training dataset and the test dataset respectively. The error set by the BPNN in this paper is 0. The computational cost of the BPNN is higher than labcorp drug of GA-BPNN.

In addition, the GA-BPNN also converges faster in the early stage of operation. The statistical results on labcorp drug training data calculated by GA-BPNN with the three-fold cross-validation are shown in Labcorp drug 1, the statistical labcorp drug on the 50 test data are shown in Table 2. The proportion of positive and negative instances in training and test datasets are equivalent to the one in the whole dataset.

Although the labcorp drug speed of GA-BPNN is higher, it has to spend much time to solve the optimum in the training stage, i. Its average labcorp drug time is about 0. Correspondingly, the average training time of BPNN is about 0. Its test recognition accuracy is about 86.

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