CN111177289A - Method and system for extracting and checking related information of data space of multi-source network - Google Patents
Method and system for extracting and checking related information of data space of multi-source network Download PDFInfo
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The invention provides a method and a system for extracting and checking related information of a mass-source network data space, which are used for acquiring map information from multiple sources, and searching change information and change ranges in a regional and regional way at regular time according to established time, space and text semantic rules and a knowledge base; establishing tasks to be updated and checked, wherein all updating tasks have geographical position coordinates and are served by issuing an updating task list; browsing a map to find errors in the map according to the situation of the site information, submitting change information, and uploading a picture of the updated change information; based on the multi-source place name address intelligent matching correction algorithm, the spatial extraction of the text information is carried out, the quality of the updated change information is determined, and if the quality is proper, the change data is updated, so that the accuracy of the information can be ensured.
Description
Technical Field
The disclosure belongs to the technical field of spatial information processing, and relates to a method and a system for extracting and checking related information of a data space of a multi-source network.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, an overall updating strategy is adopted for updating the electronic map, the time period of data updating in the whole province is long, and the key for reducing the updating cost and improving the updating efficiency is to find the change area information in time and evaluate the change area information effectively. In the prior art, feature change information is manually and visually interpreted or semi-automatically extracted by utilizing a high-resolution remote sensing image, a change result is applied to updating of an electronic map, the cost for manually discovering the change information is high, the process is complex, the efficiency is low, the information extraction result lacks effective quality assessment, and meanwhile, the feature name attribute change of POI (administrative place name, village name) and the like cannot be timely discovered through the image.
To the knowledge of the inventors, conventional technical means include:
1) the public user submits the change information by using the heaven and earth map website. By establishing a transmission model of spontaneous geographic information for updating a sky map in each direction, a registered user uploads the spontaneous geographic information through a 'sky map' website to realize the updating and correction of basic geographic data, and the method has the advantages of low cost, high updating frequency and the like, but has problems in updating quality reliability and pertinence.
2) And collecting place name data by using the mobile phone APP. Through the data acquisition and updating system based on the mobile phone, a series of data acquisition and updating tasks including field acquisition, data uploading, background editing, data auditing and service providing are realized. The mode is mainly oriented to personnel with field data acquisition experience, APP is required to be specially installed, the specialty is strong, and the operation is complex.
3) And actively capturing geographical change information in the internet by using the web crawler to update. The technology for discovering data change of the 'sky map' based on internet information retrieval fully utilizes various geographic change information resources on the internet, realizes the capture, storage, duplication removal and management of network geographic information, but has poor information accuracy, manual interpretation and the like.
4) The regular data updating of the surveying and mapping department is generally regular updating according to basic surveying and mapping planning, a map is updated about 1-5 years, field operation personnel update the map by using a paper map or field operation survey, the accuracy of field operation check is high, but the cost is high and the updating frequency is slow.
Disclosure of Invention
The invention provides a method and a system for extracting and checking related information of a data space of a multi-source network, aiming at solving the problems.
According to some embodiments, the following technical scheme is adopted in the disclosure:
a method for extracting and checking related information of a data space of a multi-source network comprises the following steps:
obtaining map information from multiple sources, and searching change information and change range in a timely regional and regional way according to established time, space and text semantic rules and a knowledge base;
establishing tasks to be updated and checked, wherein all updating tasks have geographical position coordinates and are served by issuing an updating task list;
browsing a map to find errors in the map according to the situation of the site information, submitting change information, and uploading a picture of the updated change information;
and performing spatial extraction of text information based on a multi-source place name address intelligent matching correction algorithm, determining the quality of updated change information, and updating change data if the quality is proper.
As a further limitation, government websites and related map websites are automatically analyzed through sniffing perception, association analysis and a space matching algorithm, and semantic rules and knowledge bases of established time, space and text are used.
And as a further limitation, searching change information and a change range in a timely and regional and range division manner, automatically evaluating the change rate, and automatically marking the change information into a warehouse if the change rate exceeds a set value.
And as a further limitation, establishing a task library to be updated and checked, wherein all the updating tasks have geographical position coordinates, automatically receiving the nearby updating tasks based on the current geographical position by a user through issuing an updating task list service, editing the content of the updating tasks after the user receives the updating tasks, adding the current position information of the user into the updating information submitted by the user, finally submitting the updating tasks, and entering an updating result library after the verification is passed.
As a further limitation, a place name library is established, POI identification service and place name query service are issued, based on the current geographic position of the user, according to the situation of field information, a map is browsed to find errors in the map, a change information submission stage is entered, the type of data update is selected, and photos are uploaded to the update information.
When the user takes a picture and uploads the picture, the current geographical position information is written into the position information of the picture and is transmitted to the server, and finally, the updated and changed data is reported.
As a further limitation, when updating information, a user searches for predetermined place name data according to experience, browses a map to find errors in the map, enters a phase of submitting change information, selects a type of data update, and uploads photos for the update information.
As a further limitation, according to the submitted task or the updated change information, the spatial extraction of the text information is completed based on the researched and developed multisource place name address intelligent matching correction algorithm, the intelligent comparison and verification are carried out based on a third party, and a quality three-party evaluation inspection model is established for quality evaluation.
A system for extracting and checking related information of data space of a multi-source network comprises:
the server side is configured to acquire map information from multiple sources, and search change information and change ranges in a regional and range-divided mode at regular time according to established time, space and text semantic rules and a knowledge base;
establishing tasks to be updated and checked, wherein all updating tasks have geographical position coordinates and are served by issuing an updating task list;
the handheld device end is configured to browse a map to find errors in the map according to the field information condition, submit change information and upload photos of updated change information;
and the data center is configured to be connected with the server side and the handheld device side, perform spatial extraction on the text information based on a multi-source place name address intelligent matching correction algorithm, determine the quality of the updated change information, and update the change data if the quality is proper.
A computer readable storage medium, wherein a plurality of instructions are stored, the instructions are suitable for being loaded by a processor of a terminal device and executing the steps of the method for extracting and checking the data space related information of the crowd-sourced network.
A terminal device comprising a processor and a computer readable storage medium, the processor being configured to implement instructions; the computer readable storage medium is used for storing a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the steps of the method for extracting and checking the related information of the data space of the multi-source network.
Compared with the prior art, the beneficial effect of this disclosure is:
compared with a traditional place name updating mode, the data updating frequency is higher, the cost is lower, the method is widely applied to updating important geographic elements in various areas, the updating period is shortened from year to month, and the correctness and the instantaneity of map information data are guaranteed.
According to the method, data updating of the internet ubiquitous space-time data on the basis of discovery, matching and reconstruction is achieved through key technical processes such as sniffing perception, association analysis and space matching. A geographic information data reporting method based on a crowdsourcing mode is established aiming at modes of active feedback, map error correction and the like of internet users, active acquisition updating and electronic map discovery updating technologies based on mobile terminals are researched and developed, reporting is performed by adopting modes of multi-source terminal reporting, user error correction, opinion feedback and the like aiming at different groups, data verification can be performed by using modes of telephone return visit, manual comparison, field check and the like, and rapid acquisition and updating of space-time data are achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a workflow diagram of the present disclosure.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
According to the background technology, geographic spatial data are changed all the time, the real-time updating of map data cannot be realized in the prior art, a specialized map data production team can only ensure the instantaneity and accuracy of the data in an updating period, and the change of land feature elements in a certain area cannot be obtained in time, so that the research on how to jointly complete the quick updating of platform data by means of social strength is needed. The crowd-sourced GIS is generated and developed by combining a crowd-sourced concept with traditional geographic data, and is open geographic data which is obtained by a large number of laymen in volunteers and provided to the masses through the Internet. The method has the characteristics of large data volume, rich information, low cost and strong current performance, so that the method has great advantages compared with the traditional geographic data, and has great development potential and application value. However, in the face of massive and mass geographic information data, how to design and establish corresponding platforms to collect information and update platform data, how to perform screening for removing false and true false, establishing a standard data model, and performing evaluation and inspection on data quality are all problems to be solved.
The method and the system for extracting and checking the relevant information of the space of the multi-source network data are developed by fully utilizing big data of government departments and internet websites aiming at the problems of difficulty in finding space-time data change information, poor pertinence of data updating, strong specialization and low frequency, key technical processes such as sniffing perception, association analysis, space matching and the like are designed, and data updating of the internet ubiquitous space-time data on the basis of finding, matching and reconstructing is realized. A geographic information data reporting method based on a crowdsourcing mode is established aiming at modes of active feedback, map error correction and the like of internet users, active acquisition updating and electronic map discovery updating technologies based on a WeChat public platform and a mobile terminal are developed, aiming at different groups, modes of multi-source terminal reporting, user error correction, opinion feedback and the like are adopted for reporting, data verification is carried out by using modes of telephone return visit, manual comparison, field verification and the like, reward points and other mechanisms are encouraged, and rapid acquisition and updating of space-time data are achieved.
As shown in fig. 1, the heaven and earth map Shandong is described as an application example, and specifically includes:
1) and (5) a change information discovery process. Automatically analyzing government websites and other map websites by sniffing perception, association analysis and space matching algorithm, regularly searching change information and change range in regions and ranges according to established time, space and text semantic rules and knowledge bases, automatically evaluating the change rate, and marking the change information into a warehouse if the change rate is more than 30%.
2) And establishing and submitting tasks to a workflow. The method comprises the steps of firstly establishing a task library to be updated and checked, enabling all updating tasks to be provided with geographical position coordinates, enabling users paying attention to Shandong WeChat public numbers of heaven and Earth maps to automatically receive nearby updating tasks based on current geographical positions by issuing an updating task list service, editing the contents of the updating tasks after the users receive the updating tasks, enabling a system to add current position information of the users into updating information submitted by the users, submitting the updating tasks, and entering an updating result library after the updating tasks are approved by a manager.
3) And changing data and submitting a workflow. Firstly, a place name library is established, POI identification service and place name inquiry service are externally issued, public users pay attention to the WeChat public number of heaven and earth map Shandong, and can actively browse a map to find errors in the map according to the situation of field information based on the geographical position of the current user, meanwhile, the users can search specific place name data according to experience, then enter a change information submission stage, select the type of data update, upload photos of update information, simultaneously write the current geographical position information into the position information of the photos and transmit the position information to a server, and finally report the update change data.
4) And (5) quality evaluation flow. A user finishes the spatial extraction of text information by submitting a task or updating change information based on a researched and developed multisource place name address intelligent matching correction algorithm, carries out intelligent comparison and verification based on a third-party Chinese geographic information service website, establishes a quality three-party evaluation and inspection model (comprising timeliness, geometric precision, spatial consistency, data source, spatial precision, time precision, attribute precision, data integrity, semantic accuracy and metadata quality), and carries out quality evaluation.
The updating change information qualified in quality evaluation can be checked through telephone or WeChat, mutual checking information interaction is carried out, and the updating information after being checked by the administrator enters an updating result library after being checked by the administrator. The system will give the user the corresponding points, which can be exchanged for the corresponding reward.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A method for extracting and checking related information of a data space of a multi-source network is characterized by comprising the following steps: the method comprises the following steps:
obtaining map information from multiple sources, and searching change information and change range in a timely regional and regional way according to established time, space and text semantic rules and a knowledge base;
establishing tasks to be updated and checked, wherein all updating tasks have geographical position coordinates and are served by issuing an updating task list;
browsing a map to find errors in the map according to the situation of the site information, submitting change information, and uploading a picture of the updated change information;
and performing spatial extraction of text information based on a multi-source place name address intelligent matching correction algorithm, determining the quality of updated change information, and updating change data if the quality is proper.
2. The method as claimed in claim 1, wherein the method for extracting and checking the related information of the data space of the multi-source network comprises: and automatically analyzing the government website and the related map website by sniffing perception, association analysis and a spatial matching algorithm, and according to the established time, space and text semantic rules and a knowledge base.
3. The method as claimed in claim 1, wherein the method for extracting and checking the related information of the data space of the multi-source network comprises: and searching change information and a change range in a range by regions at regular time, automatically evaluating the change rate, and automatically marking the change information into a warehouse if the change rate exceeds a set value.
4. The method as claimed in claim 1, wherein the method for extracting and checking the related information of the data space of the multi-source network comprises: establishing a task library to be updated and checked, wherein all updating tasks have geographical position coordinates, automatically receiving nearby updating tasks based on the current geographical position by a user through issuing an updating task list service, editing the content of the updating tasks after the user receives the updating tasks, adding the current position information of the user into the updating information submitted by the user, finally submitting the updating tasks, and entering an updating result library after the verification is passed.
5. The method as claimed in claim 1, wherein the method for extracting and checking the related information of the data space of the multi-source network comprises: firstly, establishing a place name library, issuing POI (point of interest) identification service and place name query service, browsing a map to find errors in the map according to the situation of field information based on the current geographic position of a user, entering a change information submission stage, selecting a data updating type, and uploading photos of updated information.
6. The method as claimed in claim 1, wherein the method for extracting and checking the related information of the data space of the multi-source network comprises: when the information is updated, a user searches preset place name data according to experience, browses a map to find errors in the map, enters a change information submission stage, selects a data updating type, and uploads photos for the updated information.
7. The method as claimed in claim 1, wherein the method for extracting and checking the related information of the data space of the multi-source network comprises: according to the submitted task or the updated change information, the spatial extraction of the text information is completed based on the researched and developed multisource place name address intelligent matching correction algorithm, the intelligent comparison and verification are carried out based on a third party, and a quality three-party evaluation inspection model is established for quality evaluation.
8. A system for extracting and checking related information of a data space of a multi-source network is characterized in that: the method comprises the following steps:
the server side is configured to acquire map information from multiple sources, and search change information and change ranges in a regional and range-divided mode at regular time according to established time, space and text semantic rules and a knowledge base;
establishing tasks to be updated and checked, wherein all updating tasks have geographical position coordinates and are served by issuing an updating task list;
the handheld device end is configured to browse a map to find errors in the map according to the field information condition, submit change information and upload photos of updated change information;
and the data center is configured to be connected with the server side and the handheld device side, perform spatial extraction on the text information based on a multi-source place name address intelligent matching correction algorithm, determine the quality of the updated change information, and update the change data if the quality is proper.
9. A computer-readable storage medium characterized by: a plurality of instructions are stored, the instructions are suitable for being loaded by a processor of the terminal device and executing the steps of the method for extracting and verifying the related information of the data space of the crowd-sourced network according to any one of claims 1 to 7.
10. A terminal device is characterized in that: the system comprises a processor and a computer readable storage medium, wherein the processor is used for realizing instructions; the computer readable storage medium is used for storing a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the steps of the method for extracting and checking the related information of the data space of the crowd-sourced network according to any one of the claims 1 to 7.
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| CN113297509A (en) * | 2021-06-23 | 2021-08-24 | 中科迅(深圳)科技有限公司 | Internet-based text and travel information industrialization system |
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