Identification of Urban Functional Area by Using Multisource Geographic Data: A Case Study of Zhengzhou, China

Table 2

General area score of POI subcategories.

Area (m^2)	1–500	500–1000	1000–3000	3000–5000
Subcategories	B1, B2, B3, B4, B9, A1	S1, R2, S3, S4, S9, A2, A4	A3, A5, A9,	W1, C1, C3
Score	0.1	0.2	0.6	1