Recognition of Functional Areas Based on Call Detail Records and Point of Interest Data

Table 2

POIs within 3rd Ring Road of Beijing.

No.	Type	Amount
1	Hotel	2083
2	Restaurant	6882
3	Supermarket and shopping mall	5152
4	Exits and entrances	499
5	Mansion	1111
6	Bus station	4406
7	Park	121
8	Others	23787
9	Parking lot	893
10	School	1417
11	Drug store	632
12	Medical	1182
13	Bank	2759
14	Government agency	1118