An Optimization Method for the Geolocation Databases of Internet Hosts Based on Machine Learning

Table 8

The results of statistical tests for different geolocation databases.

	IP138		QQWry		IPcn		CBG		TBG
Province	−50.416	0.000	−48.997	0.000	−41.007	0.000	−28.632	0.000	−11.528	0.000
City	−30.631	0.000	−64.365	0.000	−82.348	0.000	−58.111	0.000	−69.899	0.000
Province	−2.812	0.002	−2.805	0.002	−2.805	0.002	−2.803	0.002	−2.803	0.002
City	−2.803	0.002	−2.805	0.002	−2.803	0.002	−2.812	0.002	−2.805	0.002