A 3D spatio-temporal information propagation prediction method with differential privacy mechanism
A technology of information dissemination and differential privacy, applied in the field of information privacy protection, can solve the problem of leakage for privacy and other issues
Active Publication Date: 2021-05-04
NORTHEASTERN UNIV LIAONING
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[0006] Aiming at the problem of possible leakage for privacy in the prior art, the present invention proposes a 3D spatio-temporal information propagation prediction method with a differential privacy mechanism that can protect user privacy
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[0098] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the present invention will be further described below with reference to the accompanying drawings and in conjunction with specific embodiments, so that those skilled in the art can implement it with reference to the description. The scope of protection is not limited to this specific embodiment. Apparently, the embodiments described below are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0099] An overall flowchart of a 3D spatial-temporal information propagation prediction model with a privacy mechanism, such as figure 1 Shown, specifically illustrate the detailed implementation process of the present invention, comprise the following st...
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The invention discloses a three-dimensional space-time information propagation prediction method with a differential privacy mechanism, and belongs to the technical field of information privacy protection. The three-dimensional spatio-temporal information dissemination prediction method includes four steps of data acquisition and preprocessing, extracting user attributes, establishing a differential privacy protection mechanism, and constructing an information dissemination prediction model with a differential privacy mechanism. The invention regards the user communication topology as a continuum, uses the complex-valued reaction-diffusion two-dimensional partial differential equation in polar coordinates to model the group dynamics of the users, and its state represents the position coordinates of the users. This model can effectively combine the information diffusion mechanism with differential privacy protection technology, so as to better analyze the characteristics and laws of information dissemination in the space-time dimension in online social networks, and protect user privacy information in social networks.
Description
technical field [0001] The invention belongs to the technical field of information privacy protection, and in particular relates to a three-dimensional space-time information propagation prediction method with a differential privacy mechanism. Background technique [0002] With the continuous development of computer and communication technology, Online Social Networks (OSNs) have become an indispensable part of people's life. Users can use social networks to share and communicate information, and the problem of information diffusion in online social networks has become a hot research topic. However, good and bad information in social networks is mixed, and bad information is also spread rapidly and widely, which has brought many negative effects on social stability and economic development. Among them, privacy leakage has become one of the biggest threats to the Internet. Therefore, research on the information diffusion mechanism in online social networks with privacy prote...
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IPC IPC(8): G06F16/951G06Q10/04G06Q50/00
CPCG06Q10/04G06Q50/01G06F16/951
Inventor 多允慧孙福权姜玉山刘晏君
Owner NORTHEASTERN UNIV LIAONING