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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
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2021
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Article
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Tab 4
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Research Article
Coupling Coordinated Evolution and Forecast of Tourism-Urbanization-Ecological Environment: The Case Study of Chongqing, China
Table 4
Gray prediction accuracy inspection level standards.
P
C
Model accuracy level
P
C
Model accuracy level
>0.95
<0.35
First grade
>0.80
<0.50
Second grade
>0.70
<0.65
Third grade
<0.70
>0.65
Fourth grade