Data comparison collision method and device

Abstract

The invention discloses a data comparison collision method and device. The method comprises the steps of obtaining a specified space-time range; performing data processing on the trajectory data in the space-time range, wherein the data processing comprises the steps of standardizing the track data into spatio-temporal data and performing spatio-temporal index processing on the spatio-temporal data to obtain spatio-temporal feature index data; performing spatio-temporal feature denoising processing on the spatio-temporal feature index data to obtain denoised spatio-temporal feature index data,wherein the spatio-temporal feature denoising processing comprises the steps of marking whether corresponding data in one or more spatio-temporal parameter items exists or not from spatio-temporal feature index data; extracting collision data to be compared from a preset spatial-temporal feature library according to spatial-temporal index dimensions in the denoised spatial-temporal feature indexdata; and performing trajectory similarity calculation on the trajectory data and the collision data to be compared to complete spatio-temporal data comparison collision. Through the scheme of the embodiment, data extraction is completed quickly, the calculated amount is reduced, and the comparison accuracy is improved.

Description

technical field [0001] This article relates to data processing technology, especially a method and device for data comparison and collision. Background technique [0002] The trajectory comparison and collision problem is a trajectory correlation comparison and search problem. To find the correlation between entities such as people or objects in the public security business scene, through this correlation to find clues in actual research, judgment, and analysis, and to provide technical support for public security to solve crimes and intelligence work. [0003] The current technology generally uses the method of rule calculation. Through the given data collision rules, the original trajectory data is directly calculated, and the customer's trajectory comparison and collision requirements are completed according to the matching of time and space rules. The calculation is large and the comparison speed is slow. [0004] Moreover, in the above-mentioned trajectory collision ca...

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Problems solved by technology

[0003] The current technology generally uses the method of rule calculation. Through the given data collision rules, the original trajectory data is directly calculated, and the customer's trajectory comparison and collision requirements are completed according to the rule matching of time and space. The calculation amount is large and the comparison speed is slow.

[0004] Moreover, in the above-mentioned trajectory collision calculat

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