Semantic web

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Semantic web

  1. 1. Semantic Web Presented By: Prosunjit Biswas System Developer, Cention AB Email:Prosun.csedu@gmail.com
  2. 2. Outline <ul><li>Web 2.0 </li></ul><ul><li>Limitation of Web 2.0 </li></ul><ul><li>Introduction of Web 3.0 ( Semantic Web) </li></ul><ul><li>How Semantic web changes the world </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  3. 3. Web 2.0 <ul><li>Web 2.0 is simply what we feel now </li></ul><ul><ul><li>FaceBook, My Space, Twitter, Google , …. </li></ul></ul><ul><li>Feel the difference between Web 2.0 and Web 1.0 </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  4. 4. Web 1.0 <ul><li>Let’s See How Web 1.0 would have invoked our Sleep with </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  5. 5. Web 1.0 <ul><ul><li>Disable All your Javascript </li></ul></ul><ul><ul><ul><li>Ohh no!!! </li></ul></ul></ul><ul><ul><ul><ul><li>Show / Hide Div won’t work </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Ajax Won’t work ( no auto update  ) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Perhaps remember me in this pc won’t work </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Your chat won’t work (  ) </li></ul></ul></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  6. 6. Web 1.0 <ul><ul><li>Disable All Adobe Flash Component </li></ul></ul><ul><ul><ul><li>Ohh no!!! </li></ul></ul></ul><ul><ul><ul><ul><li>Your Video link won’t work (it is just an image now  ) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>No farmville (  ) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>And many thing ( I don’t know ) </li></ul></ul></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  7. 7. Web 1.0 <ul><ul><li>And Even More disaster would HAPPEN With web 1.0 </li></ul></ul><ul><ul><li>So,Now we Know how 2.0 Excites Web Surfing </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  8. 8. Limitation of Web 2.0 <ul><ul><li>Yes, Still there is limitation </li></ul></ul><ul><ul><li>WWW is yet a fool </li></ul></ul><ul><ul><li>Web pages are designed to be read by people not by Machine </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  9. 9. Limitation of Web 2.0 <ul><ul><li>How to feel ? </li></ul></ul><ul><ul><li>Ok, Now its time to know Semantic Web (web 3.0) </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  10. 10. Semantic Web ( Introduction of web 3.0) <ul><li>Semantics ? </li></ul><ul><ul><li>Syntax means how we say something </li></ul></ul><ul><ul><li>Semantics in meaning behind what we say </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  11. 11. Semantic Web ( Introduction of web 3.0) <ul><li>Example: </li></ul><ul><ul><li>I love Technology </li></ul></ul><ul><ul><li>I Technology </li></ul></ul><ul><ul><ul><li>Here syntax is letters words, punctuation </li></ul></ul></ul><ul><ul><ul><li>Semantics what the line actually mean. </li></ul></ul></ul><ul><ul><ul><li>In this case it mean that I enjoy reading new technology </li></ul></ul></ul><ul><ul><li>But they have different syntax yet same semantics </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  12. 12. Semantic Web ( Introduction of web 3.0) continued … <ul><li>Our 2.0 technology runs on syntax and not on semantics. </li></ul><ul><li>Our HTML (HTTP/1.1) is all about syntax but does our machine bother what web pages are really about ? </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  13. 13. Semantic Web ( Introduction of web 3.0) continued … <ul><li>So, Now we need to know how things are in semantic web. </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  14. 14. Semantic Web ( Introduction of web 3.0) continued … <ul><li>In semantic web everything will have an URI </li></ul><ul><ul><li>Everything means everything ( every person, every country, … infact probably every noun ) </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  15. 15. Semantic Web ( Introduction of web 3.0) continued … <ul><li>Ex: </li></ul><ul><ul><li>Jane love Joe </li></ul></ul><ul><ul><ul><li>Jane(uri1) Love(uri2) Joe(uri3) </li></ul></ul></ul><ul><ul><li>Jane love chokolet </li></ul></ul><ul><ul><ul><li>Jane(uri1) Love(uri2) chokolet (uri4) </li></ul></ul></ul><ul><ul><ul><li>But this really are represented by tuples. </li></ul></ul></ul><ul><ul><ul><li>And Semantic Web are made of many tuples. </li></ul></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  16. 16. Semantic Web ( Introduction of web 3.0) continued … <ul><li>So at last we will have an graph of tuples like below . ( GGG and ! WWW) </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  17. 17. What is RDF <ul><li>Resource Description Framework </li></ul><ul><li>Subject Predicate Object </li></ul><ul><li>Dave Like Cookies </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  18. 18. Representing RDF Statement <ul><li>Everything is Subject Predicate Object </li></ul><ul><li>Representing “Dave Likes Cookies” </li></ul><ul><li>N3 Notation: </li></ul><ul><ul><li>@prefix pref:< http://example.org/vocabulary# >. </li></ul></ul><ul><ul><li><#dave><pref:likes><#cookies>. </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  19. 19. Putting Semantic Info to Web Pages <ul><li>If your webpage know the semantics of Information , then after browsing a medical diagnosis site your browser/machine has the knowledge of a pathologist. </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  20. 20. Putting Semantic Info to Web Pages <ul><li>In the following example we will try to learn our browser/machine that </li></ul><ul><li>Jane is a person (probably software Eng  ) </li></ul><ul><li>Jane’s full name is Jane McJanerson </li></ul><ul><ul><li>Mac is a person </li></ul></ul><ul><ul><li>Mac’s full name is Mac …. </li></ul></ul><ul><ul><li>Jane knows Mac </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  21. 21. Learning that Jane’s Name is Jane McJanerSon Semantic Web Open Source Software with South-East University, Dhaka.
  22. 22. Learning that Jane’s Name is Jane McJanerSon and he is a person Semantic Web Open Source Software with South-East University, Dhaka.
  23. 23. Learning both Jane & Mac Semantic Web Open Source Software with South-East University, Dhaka.
  24. 24. Learning Jane knows Mac Semantic Web Open Source Software with South-East University, Dhaka.
  25. 25. What about the browser / Machine Now <ul><li>Now the machine knows many thing. </li></ul><ul><li>You can query the machine about Mac , jane </li></ul><ul><li>So, the machine is no longer fool now  </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  26. 26. How Semantic web will help us? <ul><li>In finding news, people, movies and everything in more effectively </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  27. 27. Statistics of Internet Growth <ul><ul><li>People connected : > 1.7 billion </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  28. 28. Statistics of Internet Growth <ul><ul><li>Data On Internet : </li></ul></ul><ul><ul><ul><li>2006: 161 EB ( Exabyte) </li></ul></ul></ul><ul><ul><ul><ul><li>1 EB = 1million Terabytes </li></ul></ul></ul></ul><ul><ul><ul><li>2010: 988 EB </li></ul></ul></ul><ul><ul><ul><li>Data on Internet Grows Double Every Two years . </li></ul></ul></ul><ul><ul><ul><li>Ref:http://www.youtube.com/watch?v=zXlKIJoSLVM </li></ul></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  29. 29. Do we really have alternative? <ul><ul><li>Tagging </li></ul></ul><ul><ul><li>Tagging vs Semantic Web </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  30. 30. How semantic web changes the world <ul><ul><li>Every websites are closely connected with each other. </li></ul></ul><ul><ul><ul><li>Results consistency among information (every where on internet) </li></ul></ul></ul><ul><ul><ul><li>Every people are connected closely with each other </li></ul></ul></ul><ul><ul><ul><ul><li>(More than like they are connected today with Facebook) </li></ul></ul></ul></ul><ul><ul><ul><li>Better Web Searching </li></ul></ul></ul><ul><ul><ul><li>Machines can Share Share knows by themselves voluntarily </li></ul></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  31. 31. FeedBack <ul><li>Any Questi n ? </li></ul><ul><ul><li>(In fact, I have many. ) </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  32. 32. <ul><li>Thank You </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  33. 33. Appendix 1 How to disable Javascritpt (Firefox) <ul><ul><li>Open Firefox . </li></ul></ul><ul><ul><li>On the Tools menu, click Options . </li></ul></ul><ul><ul><li>Click on the Content icon. (Fig. 1) </li></ul></ul><ul><ul><li>Check the box next to Enable JavaScript . (Fig. 1) </li></ul></ul><ul><ul><li>Click the Advanced button to open the Advanced JavaScript Options box. (Fig. 2) </li></ul></ul><ul><ul><li>Check the boxes under Allow scripts to section that you want to allow. </li></ul></ul><ul><ul><li>Click OK . </li></ul></ul><ul><ul><li>Ref: http ://msmvps.com/blogs/harrywaldron/archive/2008/05/30/adobe-flash-how-to-disable-and-enable-in-ie-7-or-ie-8.aspx </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  34. 34. Appendix 2 How to disable Javascritpt (IE  ) <ul><ul><li>Open Internet Explorer . </li></ul></ul><ul><ul><li>On the Tools menu, click Internet Options . </li></ul></ul><ul><ul><li>On the Security tab , click Internet . </li></ul></ul><ul><ul><li>Click Custom Level . </li></ul></ul><ul><ul><li>Scroll down to Active scripting . </li></ul></ul><ul><ul><li>Click Disable </li></ul></ul><ul><ul><li>Click OK . </li></ul></ul><ul><ul><li>Click Yes . </li></ul></ul><ul><ul><li>Click OK . </li></ul></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  35. 35. Appendix 3 IE Settings - Disable/enable Flash <ul><li>Tools >>> Internet Options >>> Program Tab >>> Manage add-on options button >>> Filters >>> Add-ons that run without requiring permission >>> Select Shockwave Object >>> Click Disable button at bottom </li></ul><ul><li>Ref: http ://msmvps.com/blogs/harrywaldron/archive/2008/05/30/adobe-flash-how-to-disable-and-enable-in-ie-7-or-ie-8.aspx </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.
  36. 36. References <ul><li>http://www.youtube.com/watch?v=ldl0m-5zLz4&feature=related </li></ul><ul><li>http://www.youtube.com/watch?v=olDpQwR8Fhk&NR=1 </li></ul>Semantic Web Open Source Software with South-East University, Dhaka.

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