Air quality prediction algorithm based on ARIMA-SVM combined model
A technology of air quality and forecasting algorithms, which is applied in calculations, complex mathematical operations, computer components, etc., can solve problems such as the decline in data forecasting accuracy, and achieve the effect of improving forecasting accuracy
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[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.
[0025] figure 1 It is the algorithm flowchart of the present invention:
[0026] Step 1: The analysis object of the ARIMA(p,d,q) model is a stationary sequence. Firstly, the air quality data is tested for stationarity. If it is strictly stationary, the data will not be processed. If it is not strictly stationary, how to perform differential processing on the data? The data becomes strictly stationary.
[0027] Step 2: Analyze the stable air quality data and determine the order of the ARIMA model according to the analysis results. The order determination of the ARIMA (p, d, q) model is mainly to determine the value of (p, d, q), where the value of d The value was confirmed in the first step. In the mathematical model of ARIMA, ...
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