1 / 10

The Semantic Web

The Semantic Web. The Web Today. Designed for Human to read Cannot express meaning Architecture: URL Decentralized: Link structure Language: html. XML. HTML Tag + Rule XML separates data and its display Tag XML cannot express meaning DTD design a XML document. Semantic Web.

kacy
Download Presentation

The Semantic Web

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Semantic Web

  2. The Web Today • Designed for Human to read • Cannot express meaning • Architecture: URL • Decentralized: Link structure • Language: html

  3. XML • HTML • Tag + Rule • XML separates data and its display • Tag • XML cannot express meaning • DTD design a XML document

  4. Semantic Web • Designed for computer program to manipulate meaningfully. • An extension of the current Web • A Knowledge web that enables machines to comprehend semantic documents and data. • Express meaning by ontological language.

  5. Architecture

  6. URI • Architecture • Universial Resource Identifier • Language • XML + XMLS • RDF + RDFS • DAML + OIL • OWL

  7. RDF

  8. Technology and Tools • Description Logics • Frame-based Systems • Standard Web • Web Service Agents

  9. XML Parser • DocumentBuilderFactory factory • DocumentBuilder builder • Document doc • Node root = doc.getDocumentElement() • NodeList l = root.getChildNodes() • Node current = l.item(i) • Node type: DOCUMENT_NODE, ELEMENT_NODE, TEXT_NODE

  10. XSLT • Transform an XML document to other format • <xsl:template match=”booklist”> <xsl:for-each select=”book”> <xsl:value-of select=”title”/> </xsl:for each> </xsl:template>

More Related