Table 2 Performance indicators of the predictive model for related wealth indexes.

From: Beyond surveys: high-resolution mapping of rural wealth in China using satellite and street view imagery

Dimension

Type

Indicator

R2

Correlation coefficient

Mean absolute error

Root mean square error

 

Composite Wealth Index

0.71

0.85

0.42

0.55

Income

Income

Household Income Level

0.44

0.66

0.10

0.14

Consumption

Electricity

Summer Monthly Electricity Bill

0.66

0.81

27.46

37.04

Assets

Rural Housing

Floor Height

0.80

0.89

0.21

0.30

Building Base Area

0.42

0.67

10.98

15.29

Flush Toilet Rate

0.67

0.83

0.11

0.14

Bathroom Rate

0.66

0.81

0.10

0.13

Independent Kitchen Rate

0.43

0.65

0.09

0.12

Cooling Facility Rate

0.68

0.82

0.10

0.14

Exterior Wall Tiling Rate

0.38

0.61

0.09

0.12

Broadband Coverage Rate

0.25

0.49

0.10

0.13

Tap Water Supply Rate

0.73

0.44

0.10

0.14

Frame Structure Rate

0.07

0.29

0.04

0.07

Car

Car Ownership Rate

0.32

0.57

0.10

0.13

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