A hierarchical indexing method and device for public security data based on information entropy

Abstract

Embodiments of the invention provide a public security data hierarchical indexing method and device based on information entropy. The method comprises the steps of obtaining keywords of to-be-queriedpublic security data; indexing the keyword according to a preset index structure; wherein the preset index structure is a hierarchical index structure determined according to the mutual information amount which is represented by the information entropy and represents the association degree between the keywords. The device executes the method. According to the public security data hierarchical indexing method and device based on the information entropy provided by the embodiment of the invention, the keywords of the public security data are indexed through the hierarchical indexing structure determined by the mutual information amount expressed by the information entropy, so that the indexing speed during indexing of the public security data can be increased.

Description

technical field [0001] The invention relates to the technical field of data indexing, in particular to an information entropy-based public security data hierarchical indexing method and device. Background technique [0002] Internet social networks and public websites contain a large amount of public security data. However, the collected data are disorderly and disorderly, and querying these data will consume too much manpower and material resources. Existing data file systems have bottlenecks in the storage and retrieval of a large number of multi-source heterogeneous data. The data is stored and indexed in a unified manner by the data center. When storing a large amount of data, the data processing efficiency is not high. Therefore, it is of great significance to propose a hierarchical indexing method suitable for fast retrieval of public security data. Contents of the invention [0003] Aiming at the problems existing in the prior art, the embodiment of the present inv...

AI Technical Summary

Problems solved by technology

[0002] Internet social networks and public websites contain a large amount of public security data. However, the collected data are disorganized and in a state of disorder, and querying these data will consume too much manpower and material resources.

The existing data file system has bottlenecks in the storage and retrieval of a large number of multi-source heterogeneous data. The data is stored and indexed in a unified manner by the data center. When storing a large amount of data, the data processing efficiency is not high

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