Privacy measurement algorithm for structured data in data release environment

A technology for structured data and data release, applied in the field of information security, can solve the problems of lack of privacy orientation, loss of privacy, waste of computing overhead, etc.

Pending Publication Date: 2021-09-10
DALIAN UNIV OF TECH
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  • Description
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AI Technical Summary

Problems solved by technology

However, the existing anonymity technology lacks privacy orientation, that is, it does not protect the data according to the characteristics of the data before anonymizing the original data, but adopts a global and unified operation, which makes some data that alre...

Method used

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  • Privacy measurement algorithm for structured data in data release environment
  • Privacy measurement algorithm for structured data in data release environment
  • Privacy measurement algorithm for structured data in data release environment

Examples

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Embodiment Construction

[0083] In order to express the purpose, technical solutions and advantages of the present invention more clearly, the present invention will be further described in detail through the following examples and accompanying drawings.

[0084] A privacy measurement algorithm for structured data in a data publishing environment. The method includes judgment of proprietary data, identification of risk factors, measurement of data privacy, and privacy orientation of anonymous technology.

[0085] refer to figure 2 , the specific operation process of separating private attributes is as follows:

[0086] Step 1. The data source S collects target user information to form a data set D s .

[0087] Step 2. Data source S according to data set D s The user characteristics of , generate a spatiotemporal summary of the data set, the formula is as follows:

[0088]

[0089] Step 3. Compute the dataset D s The similarity between the spatio-temporal summary of the published dataset and t...

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Abstract

The invention belongs to the technical field of information security, and provides a privacy measurement algorithm for structured data in a data release environment. Firstly, a data source collects user information and generates a user information abstract, an external data set is screened according to abstract information, and attribute similarity is calculated to distinguish private attributes and non-private attributes. Then, external and internal average information amount and distribution information amount of the private attributes are calculated, sensitive attributes for the private attributes are priced and identified based on demand and time loss, quasi-identifiers are extracted by applying a maximum entropy principle, and risk elements are identified in the data. Finally, the data privacy is measured according to the privacy model, a privacy-oriented anonymous technology is given, and it can be proved that the privacy and availability under the orientation reach the best balance.

Description

technical field [0001] The invention relates to a structured data-oriented privacy measurement algorithm in a data publishing environment, and belongs to the technical field of information security. Background technique [0002] The rapid development of big data-related technologies has promoted the importance of data in all walks of life. Various organizations can use large amounts of data to optimize and upgrade their main business through big data technology in order to gain a stronger competitive advantage in the market. At the same time, in order to prevent a few Internet giants who have a deeper grasp of big data technology from using their own advantages in big data technology to monopolize and affect market stability; the voice of data sharing continues to rise. However, the privacy issue accompanying data sharing has become an alternative bottleneck affecting data sharing. If the privacy issue cannot be properly resolved, large-scale data sharing will be difficult t...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F16/906
CPCG06F21/6245G06F16/906
Inventor 陈振宇姚琳吴国伟闫鸿淼
Owner DALIAN UNIV OF TECH
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