Presentation on theme: "The Semantic Web. The Web Today Designed for Human to read Cannot express meaning Architecture: URL –Decentralized: Link structure Language: html."— Presentation transcript:
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 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.
URI Architecture –Universial Resource Identifier Language –XML + XMLS –RDF + RDFS –DAML + OIL –OWL
Technology and Tools Description Logics Frame-based Systems Standard Web Web Service Agents
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