Time sequence data compression query method and device, computing equipment and storage medium

A time-series data and query method technology, applied in the field of data processing, can solve the problem of low query accuracy and achieve the effect of improving query accuracy and reducing error bounds

Pending Publication Date: 2022-05-27
HARBIN INST OF TECH
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Problems solved by technology

[0004] Based on the problem that the query accuracy rate of the existing time series data compression query algorithm is low, the embodiment of the present invention provides a time series data compression query method, device, computing equipment and storage medium, which can reduce the error bound of the query result and improve the query accuracy. Spend

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  • Time sequence data compression query method and device, computing equipment and storage medium
  • Time sequence data compression query method and device, computing equipment and storage medium
  • Time sequence data compression query method and device, computing equipment and storage medium

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Embodiment Construction

[0053] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are protected by the present invention. scope.

[0054] As mentioned above, due to the misalignment of the segments between the compressed original time series data segments, when querying the correlation coefficient between the original time series data, the accuracy of the correlation coefficient calculated directly from the compressed data is too low, so consider using the Orthogonal projec...

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Abstract

The invention provides a time sequence data compression query method and device, computing equipment and a storage medium, and relates to the technical field of data processing.The method comprises the steps that original time sequence data to be compressed is obtained; fitting and segmenting the original time series data to obtain a fitting function corresponding to each segment of original time series data, and storing parameters of each fitting function; obtaining a query request initiated by a user for the correlation coefficient of the to-be-queried time period; wherein the query request comprises a correlation coefficient formula and a to-be-queried time period; and according to the query request and the orthogonal projection property, performing statistical calculation on parameters of the fitting function corresponding to the to-be-queried time period by using the correlation coefficient formula to obtain a correlation coefficient query result. According to the scheme, the error boundary of the query result can be reduced, and the query accuracy is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of data processing, and in particular, to a time series data compression query method, device, computing device, and storage medium. Background technique [0002] With the development of the digital economy era, more and more application systems need to perform real-time analysis and query on time series data. The existing time series data compression query algorithm firstly compresses and stores the time series data, and then directly extracts statistical information from the compressed time series data to complete the query when performing real-time analysis and query on the compressed time series data. However, in the existing time series data compression query algorithm, when analyzing and querying time series data, the accuracy of the analysis query is low due to the phenomenon of segmental misalignment between the compressed time series data. [0003] Therefore, a new method of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F16/28
CPCG06F16/2462G06F16/2474G06F16/285
Inventor 王锰苗东菁张开旗高宏祖宏权
Owner HARBIN INST OF TECH
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