RDF triad-oriented data custom mapping method

A mapping method, a technology of triples, applied in the field of data processing

Inactive Publication Date: 2019-10-18
厦门美域中央信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, using a single mapping method to convert data in a relational database into RDF triple data has certain limitations and cannot be customized according to user needs

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  • RDF triad-oriented data custom mapping method
  • RDF triad-oriented data custom mapping method
  • RDF triad-oriented data custom mapping method

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0023] Such as Figure 1-3 As shown, a kind of data self-defined mapping method oriented to RDF triples proposed by the present invention comprises the following steps:

[0024] Step 1, obtaining relational database data;

[0025] Step 2, using the Direct Mapping mapping language to directly output the database table structure and data as an RDF graph; using the R2RML mapping language to customize the specific database ...

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Abstract

The invention discloses an RDF triad-oriented data custom mapping method. The method comprises the following steps of 1, obtaining relational database data; step 2, directly outputting the database table structure and the data as an RDF graph by utilizing a Direct Mapping mapping language; customizing a specific database structure and a word list by utilizing an R2RML mapping language, and outputting the data relationship library as an RDF data set; and step 3, taking a Direct Mapping mapping language as a default mapping scheme, and taking R2RML as a personalized customization scheme. The Direct Mapping mapping language provides an initial rule for automatic conversion of a machine, the R2RML provides a manually self-defined logic framework and a grammar rule, and the two mapping modes supplement each other, so that data in the relational database is better converted into triple data of the RDF.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to an RDF triple-oriented data self-defined mapping method. Background technique [0002] Resource Description Framework (Resource Description Framework) is a markup language used to describe Web resources. RDF is an XML (a subset of Standard Generalized Markup Language) application that deals with metadata, which means "data describing data" or "information describing information". [0003] When integrating a relational database containing structured historical data into a knowledge graph, it is obviously inappropriate to use a relational database directly. The relational database cannot meet the requirements for applying it to a knowledge graph. The data in the relational database needs to be mapped according to the Convert to RDF triple data to better describe and apply data. Moreover, using a single mapping method to convert data in a relational database into RDF tripl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/25G06F16/22G06F16/28G06F16/36G06F16/901
CPCG06F16/22G06F16/258G06F16/284G06F16/367G06F16/9024
Inventor 刘家祥
Owner 厦门美域中央信息科技有限公司
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