Multifunctional sequencing system

Abstract

The invention discloses a multifunctional sorting system and method. The system comprises a data acquisition module used for acquiring data information in a power grid master control retrieval system;an encryption module which is used for encrypting the acquired data information; an index unit which is used for preprocessing data sets of the file encryption module and the index encryption moduleby utilizing index information set by the system, extracting keywords in all files, generating check codes and sending the check codes to a query user; and a user query module which is used for sending the query code to the data owner, receiving the query code and submitting the query code to the cloud server. According to the system, ciphertext index establishment is accelerated by improving a depth-first search algorithm; the sorting system can keep high-performance search under any condition, intermediate nodes are introduced through tree indexes to serve as constraint conditions of search,the search performance is improved, the similarity is determined by introducing random elements through a vector model, and the sorting function is achieved.

Description

technical field [0001] The invention relates to the technical field of Internet search and sorting, in particular to a multifunctional sorting system. Background technique [0002] With the development of smart terminals and mobile Internet, many users tend to store data in the cloud. The amount of data in the cloud environment is increasing, and the amount of data information is also increasing. Some units even want to protect the privacy of data owners. , these data should be encrypted and then outsourced to the cloud server. However, traditional encryption will make the text data difficult to search. In order to solve the problem of information retrieval and sorting in the ciphertext domain, many research schemes on searchable encryption have been proposed in recent years. [0003] On the national grid system, in order to notify different prefectures and cities and related personnel information, the name of the personnel and the name of the unit need to be listed together...

AI Technical Summary

Problems solved by technology

[0005] (1) In order to protect the data privacy of the unit in the cloud environment, the existing power grid system uses searchable sorting schemes such as single keyword and similarity, but its defect is that it needs to repeat the search many times to achieve multiple keywords The effect of search, the lack of semantic search function, the index is not efficient enough;

[0006] (2) Secondly, in the power grid retrieval and sorting system, the performance of the algorithm is too low, and the key storage overhead is large, resulting in high efficiency of search and sorting, which cannot be used for large data and massive information retrieval in the cloud environment

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