Method for converting CSV (Comma-Separated Values) data labeled by metadata to RDF (Resource Description Framework) data

A conversion method and metadata technology, applied in the field of data management, can solve the problems such as CSV data to RDF data that have not yet appeared

Active Publication Date: 2015-09-23
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the CSV+ standard is in the process of being formulated (nearly completed), there is no complete conversion

Method used

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  • Method for converting CSV (Comma-Separated Values) data labeled by metadata to RDF (Resource Description Framework) data
  • Method for converting CSV (Comma-Separated Values) data labeled by metadata to RDF (Resource Description Framework) data
  • Method for converting CSV (Comma-Separated Values) data labeled by metadata to RDF (Resource Description Framework) data

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar concepts, objects, elements, etc. or concepts and objects with the same or similar functions , elements, etc. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0020] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interprete...

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Abstract

The invention discloses a method for converting CSV (Comma-Separated Values) data labeled by metadata to RDF (Resource Description Framework) data. The method comprises the following steps: reading and analyzing a CSV file, obtaining tabular data, and storing the tabular data into a memory data structure; reading and analyzing a metadata description file, obtaining metadata, and storing the metadata into the memory data structure; combining with the obtained tabular data and metadata, generating an RDF triple set, and storing the RDF triple set into the memory data structure; and outputting the generated RDF triple set as an RDF data file of a Turtle grammatical format. The method for converting the data format converts the CSV data labeled by a metadata model vocabulary defined by a W3C (World Wide Web Consortium) technical specification <Web Tubular Data and Metadata Model> into the semantically equivalent RDF data, so that a traditional software tool can be utilized to conveniently publish the RDF data obtained by conversion onto an associated data network for various semantic web applications to share, reuse and process the tubular data from the CSV file, and therefore, a great quantity of large-coverage CSV data can perform the maximum potential.

Description

technical field [0001] The invention relates to a data format conversion method in the field of data management, in particular to a conversion method from metadata marked CSV data to RDF data. Background technique [0002] The open data movements in the fields of science and e-government have resulted in a significant growth of data in comma-separated values ​​(CSV) format on the World Wide Web. CSV is a commonly used tabular data file format. Although it is simple and practical, it is difficult to express metadata or Annotations information. In view of this, the International World Wide Web Consortium (W3C)'s Data Action Program (Data Activity: http: / / www.w3.org / 2013 / data / ) recently established a working group called "CSV on the Web" (http: / / www.w3.org / 2013 / csvw / ), which aims to convert the original non-standard CSV format (see: Y. Shafranovich, Common Format and MIME Type for Comma-Separated Values ​​(CSV) Files.IETF RFC 4180, October 2005.http: / / tools.ietf.org / html / rf...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/258
Inventor 许卓明张进王骏华
Owner HOHAI UNIV
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