A Method for Generating False Locations of Historical Information Based on User Preferences
A technology of historical location and historical information, which is applied in the field of historical information false location generation based on user preference selection, can solve the problems of small anonymous area, easy disclosure of user sensitive information, leakage of user privacy security, etc., to prevent personal privacy leakage , good anonymity effect, and the effect of improving service quality
Active Publication Date: 2021-05-25
LIAONING UNIVERSITY OF TECHNOLOGY
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, it is difficult to construct an anonymous area containing K users on road sections with few users. In order to solve the problem of too few users, it is proposed that in the case of sparse road sections, the server generates fake locations to construct anonymous areas for location query. However, there are the following problems in the existing fake location generation methods: (1) the fake location is easy to identify; (2) the scope of the anonymous area is too small, and it is easy to leak the sensitive information of the user; (3) the sensitive information of different users is different.
Therefore, the existing fake location generation method is easy to leak the user's privacy security
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0037] like figure 1 , 2 As shown, the present invention provides a method for generating a false location of historical information based on user preference selection, comprising the following steps:
[0038] Step 1: Obtain the user's location request information, the set anonymity level and the semantic information of the hidden location;
[0039] The obtained location request information Q is:
[0040] Q={User,loc,k-level,v,con,Del_ip}
[0041] Among them, User is the user, loc is the user's location, v is the user's running speed; con is the user's query content; k-level is the anonymity level required by the user; Del_ip is the location semantic information that the user requires to hide.
[0042] Among them, loc and v can be directly obtained by GPS positioning, whi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a historical information false location generation method based on user preference selection, comprising: step 1: obtaining the user's location request information, the set anonymity level and the semantic information of the hidden location; step 2: according to the historical information around the user Generate a fake location area; step 3: filter out historical locations related to the user's speed in the fake location area; step 4: filter out historical locations that are highly correlated with the user's driving direction from the historical locations filtered in step 3; step 5: Conceal the POI category set by the user and construct an anonymous area; Step 6: Calculate the entropy value according to the probability of the user being recognized. The historical information false location generation method based on user preference selection in the present invention enhances location authenticity by using historical information to generate false locations, reduces communication traffic, and allows users to choose sensitive semantic information for concealment to ensure user privacy.
Description
technical field [0001] The present invention relates to the technical field of location information services, and more specifically, the present invention relates to a method for generating a false location of historical information based on user preference selection. Background technique [0002] Location based service (LBS, Location based Service) means that the location service provider can provide location information or location-related services according to the request sent by the user. With the rapid development of mobile terminals, LBS has become an indispensable part of people's daily life. However, while users are enjoying location services, their own location privacy is easily attacked. Attackers can obtain user location information, infer the user's location, and leak user privacy. Therefore, location privacy protection has been extensively studied by scholars at home and abroad. [0003] K-anonymity is the most common location privacy protection method. The u...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04W4/029H04W4/021
CPCH04W4/021H04W4/027G06F40/30H04L67/52
Inventor 史伟李畅颜飞张兴李万杰李帅
Owner LIAONING UNIVERSITY OF TECHNOLOGY