Introduction to Semantic Web
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Introduction to Semantic Web

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Introduction to Semantic Web - This is a 55 mins lecturer I gave to Undergraduate students who took CS1150 - Introduction to Computer Science course at Wright State University. The talk covered how......

Introduction to Semantic Web - This is a 55 mins lecturer I gave to Undergraduate students who took CS1150 - Introduction to Computer Science course at Wright State University. The talk covered how Web evolved into Semantic Web, pointers to major technologies behind the Semantic Web and well known Semantic Web applications.

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  • 1. INTRODUCTION TO SEMANTIC WEB CS 1150 – INTRODUCTION TO COMPUTER SCIENCE BY - SANJAYA WIJERATNE
  • 2. OVERVIEW • What is Semantic Web? • Evolution of the Web • Semantic Web Technologies • Applications of Semantic Web 2
  • 3. 3
  • 4. WHAT IS SEMANTIC WEB? The Semantic Web is the extension of the World Wide Web that enables people to share content beyond the boundaries of applications and websites. It has been described in rather different ways: as a utopic vision, as a web of data, or merely as a natural paradigm shift in our daily use of the Web. Most of all, the Semantic Web has inspired and engaged many people to create innovative semantic technologies and applications. 4Source – http://semanticweb.org/wiki/Main_Page
  • 5. 5 Source – http://blogs.voices.com/thebiz/2006/09/web_20_definition.html Source – http://www.evolvedmommy.com/web2-0/
  • 6. 6 Source – http://www.gadgetsmagazine.com.ph/good-finds/ibms-watson-crushes-human-opposition-in-jeopardy-robot-uprising-not-far-behind.html Source – http://www.electricpig.co.uk/2011/12/16/iphone-4s-jailbreak-incredible-siri-hack-lets-you-shout-settings/
  • 7. 7
  • 8. COMPARISON – WEB 1.0, WEB 2.0 AND WEB 3.0 Web 1.0 Web 2.0 Web 3.0 Page Content Mostly Read Only (Static) Widely Read-Write Portable and Personal Web Page Types Mostly Home/Company Pages Blogs, Wiki, Social Media, Information Sharing Streaming Data with Real-time updates Application Types Web Forms Web Applications Smart Applications Content Usage Publishers Owned Content Communities Shared Content Applications Shared and Consolidated Content Knowledge Seeking Encyclopedias (Eg – Britannica) Social Knowledge-bases Web of Data Technologies HTML XML/RSS RDF/RDFS/OWL 8Semantic Web Introduction Video – http://goo.gl/zB8BW
  • 9. 9
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  • 11. SEMANTIC WEB TECHNOLOGIES • OWL (Web Ontology Language) – Use to Represent Knowledge in Semantic Web Applications • Eg – Egg is a Concept. Egg has 6g of Protein. • RDF/RDFS (Resource Description Framework) – Data Modelling Language for Semantic Web. All data are stored as RDF triples • Eg – <domain:Egg> < domain:has> <domain:Protein> • SPARQL (SPARQL Protocol and RDF Query Language) – Used to Query RDF Datasets 11 Source – http://www.semanticfocus.com/blog/entry/title/introduction-to-the-semantic-web-vision-and-technologies-part-1-overview/
  • 12. APPLICATIONS OF SEMANTIC WEB • Widely Known Applications • Google Knowledge Graph • IBM Watson • Apple’s SIRI • Developed at Kno.e.sis • Twitris and many others 12
  • 13. Source – http://www.cityofcarver.com/2013/09/thank-you-steamboat-days-committee/