PM2.5 concentration prediction method based on feature vectors and least square support vector machine
A support vector machine and eigenvector technology, applied in special data processing applications, instruments, electrical digital data processing, etc.
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Embodiment 1
[0050] Embodiment 1: as Figure 1-4 As shown, a PM2.5 concentration prediction method based on eigenvectors and least squares support vector machine, first collects the pollutant concentration data related to PM2.5 concentration for preprocessing; then calculates the comprehensive meteorological index; .5 Concentration-related pollutant concentration data and comprehensive meteorological index are carried out for correlation analysis, and the eigenvectors containing the comprehensive meteorological index are obtained to form the eigenvector A and the eigenvectors obtained by removing the comprehensive meteorological index are used to form the eigenvector B; finally, through the eigenvector A, The feature vector B constitutes the training sample to train the LS-SVM model and evaluate the prediction results.
[0051] The concrete steps of described method are as follows:
[0052] Step1. Collect the pollutant concentration data related to PM2.5 concentration for preprocessing: s...
Embodiment 2
[0067] Embodiment 2: as Figure 1-4 As shown, a PM2.5 concentration prediction method based on eigenvectors and least squares support vector machine, first collects the pollutant concentration data related to PM2.5 concentration for preprocessing; then calculates the comprehensive meteorological index; .5 Concentration-related pollutant concentration data and comprehensive meteorological index are carried out for correlation analysis, and the eigenvectors containing the comprehensive meteorological index are obtained to form the eigenvector A and the eigenvectors obtained by removing the comprehensive meteorological index are used to form the eigenvector B; finally, through the eigenvector A, The feature vector B constitutes the training sample to train the LS-SVM model and evaluate the prediction results.
[0068] The concrete steps of described method are as follows:
[0069] Step1. Collect the pollutant concentration data related to PM2.5 concentration for preprocessing: s...
Embodiment 3
[0084] Embodiment 3: as Figure 1-4 As shown, a PM2.5 concentration prediction method based on eigenvectors and least squares support vector machine, first collects the pollutant concentration data related to PM2.5 concentration for preprocessing; then calculates the comprehensive meteorological index; .5 Concentration-related pollutant concentration data and comprehensive meteorological index are carried out for correlation analysis, and the eigenvectors containing the comprehensive meteorological index are obtained to form the eigenvector A and the eigenvectors obtained by removing the comprehensive meteorological index are used to form the eigenvector B; finally, through the eigenvector A, The feature vector B constitutes the training sample to train the LS-SVM model and evaluate the prediction results.
[0085] The concrete steps of described method are as follows:
[0086] Step 1. Collect the pollutant concentration data related to PM2.5 concentration for preprocessing: ...
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