Red tide grade prediction method
A forecasting method and grade technology, applied in the field of grade forecasting, can solve the problems of low accuracy and large error of red tide grade forecasting.
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[0041] The red tide level prediction method of the present invention includes four working stages: meteorological data normalization processing and red tide level assignment, C4.5 decision tree classification to obtain the optimal attribute set of neural network input, and binary segmentation algorithm to determine the hidden layer nodes of the neural network There are four working stages in the learning calculation of the number and optimized BP neural network. The steps in each stage are as follows:
[0042] A Meteorological data normalization processing and red tide grade assignment
[0043] The normalization formula processes the data of meteorological factors (temperature, wind speed and direction, precipitation, air pressure, humidity, and sunshine time) before the red tide occurs, and uses the changes of meteorological factors to predict the red tide level. The meteorological factors that affect the occurrence of red tides are com...
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