2021
DOI: 10.1155/2021/6209506
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Model Building for Regional Ecological Risk Prediction and Evaluation of Prediction Accuracy

Abstract: The regional ecological risk model is built to predict the regional ecological risk level more accurately by using principal component analysis and optimizing standard BP neural network. Taking Xiangxi Tujia and Miao Autonomous Prefecture as an example, twelve primary factors affecting regional risk are selected. The sample data are processed by principal component analysis. The obtained main components are then used as input factors of the improved BP neural network, and the level of ecological risk is used a… Show more

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