Which indicators do you need to look at the accuracy of IP address positioning?

Which indicators do you need to look at the accuracy of IP address positioning? Generally divided into two aspects, the first public index is divided into two types: convergence rate (statistical product positioning rate) and error distance (statistical product accuracy). The test method generally has two situations, the location is known and the location is unknown. When the position is known, provide the distance between the positioning result and the actual position (ie the error distance); when the position is unknown, provide the distance between the positioning results of Evan Technology and other IP positioning products (ie two The error distance of the positioning product).

In order to fully understand the characteristics of IP geolocation products, 4 custom indicators are introduced, namely accuracy, coverage radius, accuracy and consistency. The detailed description is given below.

1. 1. Public indicators

For IP geolocation products, there are two common indicators: convergence rate and error distance. The descriptions are shown in Table 1.

Table 1 Description of public indicators

index	Descriptive definition
Convergence rate	Convergence rate is the success rate of the specified result, which can also be called the positioning rate. For example, for an IP geolocation product, if 100 IPs are located and 80 IPs are successfully located, the convergence rate of the IP geolocation product is 80%.
Error distance	The error distance is the description of the distance between the latitude and longitude of the positioning result and the "true position" on the premise of successful positioning. There are two cases here. In the first case, if you know the real location, you can directly calculate the distance between the positioning result and the real position; in the second case, if you don’t know the real location, you can calculate the distance between the positioning results of Evan Technology and other IP products. distance. For example, for an IP geolocation product, if the actual location of an IP is at Tsinghua University in Beijing, the location result is Zhongguancun North Street, Haidian District, Beijing, and the distance between the actual location and the location result is 0.2 kilometers, then For the IP, the error distance of the IP product is 0.2 kilometers.

1. 1. Custom indicator

Table 2 Description of custom indicators

index	Descriptive definition
Coverage radius	Due to the characteristics of the regional distribution of the IP itself, in order to more accurately describe the area of ​​the location IP, we define the coverage radius to describe the coverage of the target IP; the coverage radius refers to the radius of the largest circumscribed circle of the area covered by the IP.
accuracy	Accuracy is the description of the positioning accuracy level of the positioning result under the premise of successful positioning. There are 6 levels, namely continent, country, province, city, district and street. For example, for an IP, if the location result of the IP is 130 Zhongguancun North Street, Haidian District, Beijing, the accuracy of the IP is street level; if the location result of the IP only shows Beijing, the accuracy of the IP For the city level.
Accuracy	Accuracy is a description of the accuracy of the positioning result on the premise of successful positioning. It is divided into 10 application scenarios by precision and application scenarios (according to the different IP uses, in addition to the unused IP and Anycast IP, they are divided into 10 application scenarios, which are data centers, school units, organizations, exchange centers, enterprise dedicated lines, residential users, and infrastructure , Public hotspots, mobile networks, and satellite communications) and positioning methods (describe which method is used for positioning, divided into two situations, namely ground acquisition and algorithm positioning) to determine; the higher the accuracy, the higher the accuracy; application scenarios , The smaller the coverage (for example, the coverage of mobile network IP is larger than that of school IP), the higher the accuracy; in terms of positioning methods, ground collection is more accurate than algorithm positioning. We have designed different levels of accuracy from 1 star to 5 stars. The larger the star, the higher the accuracy; the accuracy of 5 stars is higher than the accuracy of 1 star.
consistency	Consistency, describing the extent to which IP may change over a period of time, is determined by accuracy and application scenarios. The higher the accuracy, the higher the consistency; in terms of application scenarios, the IP of a school unit is more consistent than that of a residential IP. We have designed different levels of consistency from 1 star to 5 stars. The larger the star, the stronger the consistency; the consistency of 5 stars is stronger than the consistency of 1 star.