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Method, device and electronic device for constructing spatio-temporal index in cloud environment

A construction method and cloud environment technology, which are applied in the fields of construction methods, devices and electronic equipment, and query methods of spatiotemporal indexes, can solve the problems of low efficiency of spatiotemporal big data indexing, and achieve the goal of improving indexing efficiency, simplifying structure, and high scalability. Effect

Active Publication Date: 2019-01-08
苏州视锐信息科技有限公司
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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a construction method, device and electronic equipment of a spatio-temporal index in a cloud environment to solve the problem of low efficiency of spatio-temporal big data indexing in a cloud environment

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  • Method, device and electronic device for constructing spatio-temporal index in cloud environment

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Embodiment Construction

[0064] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0065] The space-time trajectory point is the trajectory point formed by a certain space-time object at a certain time and a certain place. Spatio-temporal index, which is temporal and spatial index.

[0066] According to an embodiment of the present invention, a method for constructing a spatio-temporal index in a cloud environment is provided. It should be...

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Abstract

The invention provides a method, a device and an electronic device for constructing a spatio-temporal index in a cloud environment, wherein the method comprises the following steps: acquiring a plurality of spatio-temporal trajectory points of a spatio-temporal object; determining a spatio-temporal trajectory segment based on the spatio-temporal trajectory points of each of the spatio-temporal objects; constructing a spatio-temporal index according to the spatio-temporal trajectory segment. In this method, spatio-temporal trajectory points are constructed into spatio-temporal trajectory fragments, and spatio-temporal index is constructed on the basis of spatio-temporal trajectory fragments. The spatio-temporal trajectory fragments can effectively query the complete or local historical trajectories of spatio-temporal objects, at the same time, the spatio-temporal correlation of spatio-temporal objects is ensured, and the index efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of information retrieval, in particular to a construction method, query method, device and electronic equipment of a space-time index in a cloud environment. Background technique [0002] With the development of science and technology, the world today has entered the era of big data. The rapid growth of data scale makes big data need to have global expression. At present, most of the data contains time and space information, and contains a lot of information. If it can be fully used, it will play a major role in the fields of intelligent transportation, smart city, and residents' travel. The emergence of cloud computing provides a new model for big data storage and computing, which can facilitate users to customize data storage and computing resources on demand, save data storage and computing costs, and can significantly improve big data storage and query. performance. Track point data is a typical spati...

Claims

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Application Information

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IPC IPC(8): G06F16/22G06F16/2458
Inventor 郑坤易云蕾方发林
Owner 苏州视锐信息科技有限公司
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