Fig. 2 | Scientific Data

Fig. 2

From: CMAB: A Multi-Attribute Building Dataset of China

Fig. 2

Sampling with spatial cities in China and the completeness of multi-source data. (a) Spatial city and administrative city distribution. (b) The ratio of multi-source data within physical cities to the total multi-source data across China. The diagram shows that most of the data in different datasets are concentrated in spatial cities that only occupy 1% area of China.

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