Disaster reduction task-oriented time-space data obtaining and service combination scheme generation methods

An acquisition method, a technology of spatio-temporal data, applied in data processing applications, geographic information databases, structured data retrieval, etc., can solve the requirements of high timeliness, high operational difficulty and complexity, and difficulty in meeting the timeliness requirements of disaster reduction tasks And other issues

Inactive Publication Date: 2018-02-09
WUHAN UNIV
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Problems solved by technology

[0005] (2) High timeliness requirements: Disaster reduction tasks usually need to respond to the specific requirements of disaster reduction in a timely manner, which has high requirements for

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  • Disaster reduction task-oriented time-space data obtaining and service combination scheme generation methods
  • Disaster reduction task-oriented time-space data obtaining and service combination scheme generation methods
  • Disaster reduction task-oriented time-space data obtaining and service combination scheme generation methods

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[0030] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0031] please see figure 1 , the present invention first makes some necessary descriptions on the data and services involved. The data required for the disaster reduction task processing flow consists of existing spatio-temporal data in the database, basic geographic data, and real-time remote sensing data that needs to be obtained online. Online real-time data can be obtained through data services that meet OGC standards. The Web processing service involved in the present invention conforms to the OGC standard, and the service protocol is REST or SOAP.

[...

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Abstract

The invention discloses disaster reduction task-oriented time-space data obtaining and service combination scheme generation methods. For the task description-oriented time-space data obtaining method, firstly a disaster reduction task description template is designed, and a disaster reduction task description statement is input and preprocessed; secondly entities in a user description statement are extracted, and attribute requirements of input data are inferred in combination with rules in a knowledge base; and finally screening conditions in a standard query statement are established. For the disaster reduction task-oriented service combination scheme generation method, firstly a data correlation description is added in service metadata, and function ontologies of services are introduced; secondly, based on data correlation among the services, a service dependency graph is obtained by using a dependency graph establishment algorithm; and finally, the function of each combination path in the dependency graph is verified and screened by using an effective path search algorithm, and serves as a service combination scheme to be recommended to a user. The difficulty in obtaining thedata and establishing the disaster reduction task combination scheme through the task description by the user is overcome.

Description

technical field [0001] The invention belongs to the technical field of data mining and service computing, and in particular relates to a method for constructing spatio-temporal data acquisition and service combination scheme generation for disaster reduction tasks. Background technique [0002] In recent years, major natural disasters have occurred frequently in our country, which has brought great harm to people's lives and property and the sustainable development of society and economy. Appropriate disaster reduction and relief work can effectively reduce the losses caused by disasters. Disaster reduction tasks are usually the acquisition, processing, and evaluation of disaster-related data to obtain target data products, which can provide important technical support for information acquisition, calculation, analysis, application, and services for disaster reduction and relief work. [0003] Due to the particularity of disaster reduction work, compared with other units, i...

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Application Information

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IPC IPC(8): G06F17/30G06Q10/06G06Q50/26
CPCG06Q10/0637G06Q50/26G06F16/24564G06F16/2465G06F16/29
Inventor 应时朱坤王蕊王勇张火林陈光耀陈旭
Owner WUHAN UNIV
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