Privacy protection method and device for inquiring average score, computer device, and storage medium

Abstract

The invention discloses a privacy protection method and device for inquiring an average score, a computer device and a storage medium, wherein the method comprises the following steps: calculating a personal privacy budget threshold; generating query conditions and judging whether the current privacy budget of a user exceeds the personal privacy budget threshold; calculating the sensitivity of thesystem if the privacy budget threshold is not exceeded; according to the sensitivity of the system, conducting noise processing on the real score; conducting numerical processing on the real score after noise processing, and sending the numerically processed score information to the user. The privacy budget threshold is calculated, and when the current privacy budget does not exceed the preset privacy threshold, the sensitivity of the system is calculated, noise processing is performed on the real score, and then the real score is sent to the user after numerical processing, so the security of the score inquiry system is improved in the face of multiple attacks at the same time organized by multiple people.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a privacy protection method, device, computer equipment and storage medium for querying average grades. Background technique [0002] With the continuous expansion of the enrollment scale, the data in the educational administration management system has increased sharply. The common problem is that the amount of student achievement data is too large. However, the processing of these data is still in the primary data backup, query and simple statistics stage. Therefore, it is necessary to use third-party services (MOOC platforms, statistical software, data analysis agencies, etc.) to further mine the data (enrollment prediction, teaching analysis, performance evaluation, etc.). Due to the existence of third-party service agencies, the published data may result in the disclosure of the privacy of some students' grades. Vicious incidents caused by student information leakage have...

AI Technical Summary

Problems solved by technology

Due to more and more privacy leakage incidents, the society has become more and more aware of the importance of privacy, and the privacy awareness of enterprises, schools and other institutions has increased, making it more difficult for attackers to attack personally, so the attack is no longer an individual behavior. Instead, multiple simultaneous attacks by multiple people are organized, which also poses new challenges to privacy protection

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