Table 1 Summary of recent literature on census-independent population estimation. Note: ROI is region of interest, LOOCV is leave one out cross validation, MeAPEis median absolute percent error.

From: Census-independent population estimation using representation learning

ROI

Input resolution

Output resolution

Input data cost

Performance

Validation

MeAPE

\(R^2\)

Kano and Kaduna, Nigeria15

0.5 m (Maxar)

90 m

High (Maxar)

Survey (same region)

0.98

Sri Lanka10

10 m (Object shape data) 12–30 m (Settlement Layer) 750 m (Night time Lights)

Village level

Free (Landsat) High (Maxar)

Train/test split

28

0.58

Bo, Sierra Leone16

30 m (Landsat)

City district level

Free (public data)

LOOCV

11

Nigeria11

0.5 m (Maxar), 100 m (WorldPop), various (OSM school density, household size)

100 m

Free (OSM, WorldPop) High (Maxar)

Train/test split

0.26