Semantic web

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  • 1. A presentation on semanticweb-the next generationworld wide web. In near future, thedata on the internet wouldnot merely be html files inthe form of documents, itwould be more meaningfulthrough ontology.An extension of the currentWeb that provides an easierway to find, share, reuse andcombine information moreeasily. Its based onmachine-readableinformation and builds onXML technologys capabilityto define customized taggingschemes and RDFs flexibleapproach to representingdata.
  • 2. o Web 1.0 Mostly read only pages Mostly about companies(Dot com) Was about home pages. Was about wires. Was about Netscape.o Web 2.0 Mostly read/write pages Mostly about communities.(Facebook, MySpace) Is about blogging. is about wireless. is about search engines like Google, Dogpile, Altavista.
  • 3. • The semantic web is focused on machines.• The current web requires human operators to perform searching and displaying contents.• The Semantic Web is a project that aims to change that by presenting Web page data in such a way that it is understood by computers, enabling machines to do the searching, aggregating and combining of the Webs information — without a human operator.
  • 4. • Semantic web is not separate entity from www.• extension to the Web that adds new data and metadata to existing Web documents, extending those documents into data.• This extension of Web documents to data is what will enable the Web to be processed automatically by machines and also manually by humans.• To do this RDF (Resource Description Framework) is used to turn basic Web data into structured data that software can make use of.• RDF works on Web pages and also inside applications and databases.
  • 5. • Short for Resource Description Framework.• general framework for describing a Web sites metadata, or the information about the information on the site.• details information such as a sites sitemap, the dates of when updates were made, keywords that search engines look for and the Web pages intellectual property rights.• It provides interoperability among applications that exchange machine-understandable information on the Web.
  • 6. • Areas of research and life sciences where it can help researchers by aggregating data on different medicines and illnesses that have multiple names in different parts of the world.• Few companies implementing semantic web technology: Oracle as Oracle Technology Network Twine-Knowledge Networking Application Joost-online television service