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

Table 6

Results of qualitative verification.

GAS	GAS of Temple of Heaven Park
Contrast diagram	Identification result	Field survey	BHRI map
Identification results	This region agrees closely with Temple of Heaven Park, and so the identification result conforms to reality
GAS	GAS of financial street
Contrast diagram	Identification result	Field survey	BHRI map
Identification results	This region includes Bank of Beijing Mansion, China Unicom building, Yuhang building, Kaifu building, and others, which means the office area has been correctly identified
GAS	GAS of BIT
Contrast diagram	Identification result	Field survey	BHRI map
Identification results	BIT covers most of this GAS, so the identification is correct
GAS	GAS of Fangzhuang Region
Contrast diagram	Identification result	Field survey	BHRI map
Identification results	The residential districts of Songjiazhuang, Fangnan, Zhengxin, and others are located in this GAS, and there is no doubt that these are residential areas
GAS	GAS of Qianmen Street
Contrast diagram	Identification result	Field survey	BHRI map
Identification results	This region includes Madame Tussauds, Quanjude Roast Duck, Dashilar, and the famous Qianmen Street, all of which have very strong commercial functions
GAS	GAS of Beijing South Railway Station
Contrast diagram	Identification result	Field survey	BHRI map
Identification results	No regular features can be found to identify this area, so it is considered a mixed area