12. RDF tutorial

RDF (Resource description Framework) is a W3C standard for describing network resources, such as the title, author, modification date, content and copyright information of a web page.

现在开始学习 RDF(资源描述框架) !

12.1. RDF document instance 

<?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:si="http://www.runoob.com/rdf/"> <rdf:Description rdf:about="http://www.runoob.com"> <si:title>RUNOOB</si:title> <si:author>Jan Egil Refsnes</si:author> </rdf:Description> </rdf:RDF>

  • 12.1.1. RDF tutorial

    RDF (Resource description Framework) is a W3C standard for describing network resources, such as the title, author, modifica...
    2025-10-25 13:35:43 UTC

  • 12.1.2. Introduction to RDF

    Resource description Framework (RDF) is a W3C standard for describing web resources, such as the title, author, modification...
    2025-10-25 13:35:43 UTC

  • 12.1.3. RDF rule

    RDF uses Web identifiers (URIs) to identify resources. RDF uses attributes and attribute values to describe resources. ...
    2025-10-25 13:35:42 UTC

  • 12.1.4. RDF instance

    RDF instance ¶ This is a few lines of a CD list: Title Artists The country Company Price Year...
    2025-10-25 13:35:43 UTC

  • 12.1.5. Main elements of RDF

    RDF 的主要元素是 以及可表示某个资源的 元素。 < rdf:RDF > element ¶ < rdf:RDF > is the root element of the RDF document. It defines a...
    2025-10-25 13:35:43 UTC

  • 12.1.6. RDF container element

    RDF 容器用于描述一组事物。举个例子，把某本书的作者列在一起。 下面的 RDF 元素用于描述这些的组：、 以及 。 < rdf:Bag > element ¶ The < rdf:Bag > element is use...
    2025-10-25 13:35:43 UTC

  • 12.1.7. RDF collection

    The RDF collection is used to describe groups that contain only the specified members. Rdf:parseType= “Collection” attrib...
    2025-10-25 13:35:43 UTC

  • 12.1.8. RDF Schema (RDFS)

    RDF Schema (RDFS) is an extension of RDF. Classes for RDF Schema and applications ¶ RDF describes resources by classe...
    2025-10-25 13:35:42 UTC

  • 12.1.9. RDF Dublin Core metadata Initiative

    The Dublin Core metadata Initiative (DCMI) has created some predefined properties to describe documents. Dublin core ¶ ...
    2025-10-25 13:35:43 UTC

  • 12.1.10. Introduction to OWL

    OWL is a language for processing web information. The basic knowledge that should be possessed before learning ¶ Befo...
    2025-10-25 13:35:42 UTC

  • 12.1.11. RDF reference manual

    RDF Namespace ¶ RDF namespace (xmlns:rdf): http://www.w3.org/1999/02/22-rdf-syntax-ns# RDF namespace (xmlns:rdfs): ...
    2025-10-25 13:35:43 UTC
Web框架  946

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最近几年来，地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持，如城市管理、区划、环境整治等等，地理信息成为信息时代重要的组成部分之一； “数字地球”概念的提出，更进一步推动了作为其技术支撑的GIS的发展。 与此同时，一些学者致力于相关的理论研究，如空间感知、空间数据误差、空间关系的形式化等等。 这恰好说明了地理信息系统作为应用技术和学科的两个方面，并且这两个方面构成了相互促进的发展过程。

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